explain xkcd - User contributions [en]

381: Mobius Battle

2019-03-21T22:47:01Z

M: added (or on one "side" of a strip of clear plastic or film)

{{comic
| number = 381
| date = February 8, 2008
| title = Mobius Battle
| image = mobius battle.png
| titletext = Films need to do this more, if only to piss off the people who have to feed it into the projector.
}}

==Explanation==
[[File:mobius battle.gif|right|frame|The Möbius comic strip as an animated GIF.]]
A {{w|Möbius strip}} is an object with only one surface and one edge. It can be created by taking a strip of paper and twisting it 180 degrees before taping both ends together.

The idea of the Möbius strip has been used here to create a comic strip that could potentially loop forever. In it, [[Cueball]] is standing in front of a ball. Then another Cueball runs in and kicks the first Cueball out of the panel. The second Cueball then turns away, retaining the first Cueball's original position, only flipped horizontally. Because of the nature of the Möbius strip, if the comic strip were to be printed out in such a way that the comic could be seen on both sides of the paper, like on tracing paper or on one "side" of a strip of clear plastic or film, the comic would repeat, so that the second Cueball would become the first Cueball, and someone else, potentially the original first person, would push them out of the comic becoming himself the first Cueball.

The comic's viability as a Möbius strip is preserved the use of symmetrical letters in a palindromic word to denote laughing ("HAHAHAH") as well as using symmetrical punctuation for the other character's [http://en.wiktionary.org/wiki/grawlix#English grawlixes.] A similar use of a Möbius strip in story-telling can be seen in [https://www.youtube.com/watch?v=4mdEsouIXGM Wind and Mr. Ug] by Vi Hart.

Finally, at the title text, [[Randall]] jokes that he would like to see actual films do this solely as a joke on projectionists, who would have a difficult time feeding a Mobius strip film reel properly into a normal projector due to the twist.

==Transcript==
:[Cueball is standing next to a ball, a flash appears on the left side of the panel.]
:[Another Cueball comes in from the left, preparing to kick the ball.]
:[The other Cueball kicks the ball into the first Cueball's head.]
:[The first Cueball is lying outside of the frame, second Cueball points and laughs.]
:Second Cueball: HAHAHAH
:First Cueball: <nowiki>!#^*!*</nowiki>
:[Second Cueball is now standing next to the ball.]
:[To the right, the strip above is looped around like a film strip, but a one-half-turn is put into the loop to make it a Mobius strip.]

{{comic discussion}}
[[Category:Comics featuring Cueball]]
[[Category:Multiple Cueballs]]

376: Bug

2019-03-21T22:38:32Z

M: added example of problem with the Deep Impact (spacecraft) story

{{comic
| number = 376
| date = January 28, 2008
| title = Bug
| image = bug.png
| titletext = The universe started in 1970. Anyone claiming to be over 38 is lying about their age.
}}

==Explanation==
In computer systems, time is measured starting from some arbitrarily chosen point. That particular time is known as the "{{w|Unix time|epoch}}" for that system. The {{w|UNIX}} operating system internally uses an epoch of January 1, 1970, and measures the time as a number of seconds from then. Since this was intended only for things internal to the OS (File last modified times and the like), using 1-Jan-1970 was safe as no UNIX systems existed before that date.

However, since UNIX included a number of system functions to manipulate these dates, some developers mistook them for a general purpose date object, and misused them in applications requiring dates before the epoch, by using negative values. Such usage would inevitably fail; for example, since the value isn't specified to be signed or unsigned, the date might be considered to be far in the future, instead of in the past.

[[Cueball]] has clearly misused the system date in some way (probably by using an unsigned data type to store the timestamp, which cannot store negative values (in this case dates before 1970) or doing some other operation that doesn’t support negative values), his friend makes a pun by combining "Epoch" with "Epic Fail" - a colloquial term meaning "a very big mistake was made".

Another problem using the UNIX system date as a general purpose date object is commonly known as the {{w|year 2038 problem}}. At 03:14:08 on 19 January 2038, the 32-bit versions of the Unix time stamp will cease to work, as it will overflow the largest value that can be held in a signed 32-bit number. The 64-bit version "will" expire at 15:30:08 on 4 December 292,277,026,596.

The title text takes the joke to the next level, claiming that the entire universe began when Unix did, and therefore no one could have been older than 38 at the time when the comic was released in 2008. The formula is 'x - 1970', where x is the current year, which would explain the bug since no earlier dates are possible. This is also similar to {{w|Last Thursdayism}}.

Example of this 2 to the 32nd power time overflow problem include the Deep Impact spacecraft which on August 11, 2013, 00:38:49(more then five years after the comic), was 2 to the 32nd power tenths of a second from January 1, 2000. There is speculation that a system on the craft tracked time in one-tenth second increments since January 1, 2000, and stored it in a signed 32-bit integer, which then overflowed at piont, similar to the Year 2038 problem.[https://en.wikipedia.org/wiki/Deep_Impact_(spacecraft)#Contact_lost_and_end_of_mission Deep Impact (spacecraft)]

==Transcript==
:[Cueball sits at a computer, staring at the screen and rubbing his chin in thought. A friend stands behind him.]
:Cueball: Weird — My code's crashing when given pre-1970 dates.
:Friend [pointing at Cueball and his computer]: Epoch fail!

{{comic discussion}}
[[Category:Comics featuring Cueball]]
[[Category:Computers]]
[[Category:Programming]]
[[Category:Puns]]

2125: Luna 2

2019-03-18T17:37:54Z

M: /* Explanation */

{{comic
| number = 2125
| date = March 18, 2019
| title = Luna 2
| image = luna_2.png
| titletext = The flags were probably vaporized on impact, because we launched it before we had finished figuring out how to land. That makes sense from an engineering standpoint, but also feels like a metaphor.
}}

==Explanation==
{{incomplete|Created by a FLAGMENTATION GRENADE. Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.}}

This comic is referring to {{w|Luna 2}}, the first man-made object to make contact with the surface of the moon, and consequently, as stated in the comic, the first man-made object to touch another world.

On September 13, 1959, it hit the Moon's surface east of {{w|Mare Imbrium}} near the craters Aristides, {{w|Archimedes}}, and {{w|Autolycus}}.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[Cueball is standing behind while Megan sits at a laptop.]
:Megan: Huh. ''Luna 2'', the first artificial object to touch another world, carried a sphere made of steel Soviet flag emblems.

:[A patterned sphere is shown blowing up to pieces.]
:It was designed to blow apart on impact, scattering tiny metal flags and ribbons across the surface of the moon.

:[Close-up of Cueball and Megan's faces.]
:Cueball: So the first physical contact humans had with a heavenly body...
:Megan: ...was throwing a sharpnel grenade full of flags at it.
:Cueball: Well, it's on-brand for us, at least.

{{comic discussion}}

[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Space]]

291: Dignified

2019-03-18T15:30:19Z

M: attached 262 link for staple refrence

{{comic
| number = 291
| date = July 18, 2007
| title = Dignified
| image = dignified.png
| titletext = 'I don't know, why is your beret staying on your head?' 'Staples.'
}}

==Explanation==
[[Beret Guy]] is hanging upside down in a tree, usually something you might have done in your a childhood. As an adult, it is not considered very dignified. Most likely, [[White Hat]] made a comment on this and the fact that Beret Guy has his head down. But then, Beret Guy gives him an answer, regarding where White Hat's head once came through and asks him why he is still acting so {{w|dignified}}.

Here, Beret Guy is referring to the process of {{w|childbirth}}. Put in the way he mentions said process, the fact that White Hat came into this world in such a fashion would be very humiliating.

In the title text, White Hat replies that he does not know, but then continues to ask why Beret Guy's beret stays on his head, even when upside down (in which gravity would tend to make a beret fall off{{Citation needed}}). Beret Guy explains that he has stapled the beret onto his head.

Such a process is similar to that of closing a wound after major head surgery, using {{w|surgical staples}}. Normally, the stapling of the head would be conducted with anesthetic and removed after the incision has healed, and only an insane person would do this to himself. Doing this the way Beret Guy did it would be very, very, painful.

Beret Guy is never seen without his hat (although it has been hidden under a green helmet once in [[769: War]]). And later in [[478: The Staple Madness]], it turns out that he likes to staple anything to everything, so maybe also his hat to his head. The staple madness comic may very well be a sequel to this comic [[262: IN UR REALITY]], where Black Hat implied he had stapled stuff to cats in the title text.

In the teaser trailer of Indiana Jones And The Last Crusade, Indy [http://youtu.be/DZNlwJV5RRo?t=32s staples a hat to his head] (or at least pretends to) to prevent it from blowing off, a similar situation to the one Beret Guy is in here.

==Transcript==
:[Beret Guy swinging upside-down from a tree branch talking to White Hat walking by.]
:Beret Guy: You were once shoved headfirst through someone's vagina. Why are you acting so dignified?

{{comic discussion}}
[[Category:Comics featuring Beret Guy]]
[[Category:Comics featuring White Hat]]

96: Mail

2019-03-12T14:53:36Z

M: added ... with pi

{{comic
| number = 96
| date = May 1, 2006
| title = Mail
| image = mail.png
| titletext = I'm on the USPS no fly list
}}

==Explanation==
[[Cueball]]'s interlocutor is working their way through a list of increasingly impractical or impossible suggestions for things to send through postal mail. The pay-off is that they have already somehow sent a package of time through the mail, and this is taking a while to arrive, presumably because the amount of time it will take to reach the recipient is equal to the amount of time being sent. By the time it reaches Cueball, the time will have passed, and therefore not be of much use to him.

The reference to a 'package of time' could refer to {{w|Chronon|quantizing time}} ("discrete packets of time") - a theory that time is not continuous as particles in the {{w|quantum mechanics}}. It could be one of the big mistakes in modern science, but feels as if there's more to it, in the world of romance, sarcasm, math, and language.

A no fly list is a list of people who are not allowed to use commercial airlines for travel. In the United States it is maintained by the {{w|Terrorist Screening Center}}. According to the title text, the person sending strange objects through mail is on a no-fly-list for the {{w|United States Postal Service}} (USPS). While the USPS has a list of items banned from being shipped in the mail, which includes most consumer electronics with lithium batteries, it does not have such a list for people. This could suggest that this person has attempted to send so many strange items that USPS will no longer accept mail from him, or it could imply that they attempted, at one point, to send themselves via air mail, and have been banned from doing so again.

This comic might be related to {{w|W. Reginald Bray}}, an Englishman from the turn of the 20th century, who was famous for [https://books.google.com/books?id=a0lxQwAACAAJ&dq=%22The+Englishman+Who+Posted+Himself+And+Other+Curious+Objects%22&hl=en&sa=X&ved=0ahUKEwiT7aCB5eTMAhUlzoMKHQJPBkYQ6AEIHTAA mailing unusual objects] (including himself) to experiment with the postal system.

A list of the things:

''A running chainsaw:'' While a chainsaw may be mailed with appropriate precautions, a running chainsaw would be very dangerous to mail, assuming there was a constant power source.

''A baby's first word:'' This is a sound, and thus cannot be mailed. It could be recorded, and the recording mailed.

''A blank stare:'' This is abstract, and the closest to mailing it would be a picture.

''A dizzying height:'' Like the above, this is abstract. However, someone could conceivably package and mail a telescoping ladder, such that would allow the recipient to reach a dizzying height.

''Pi:'' This is a mathematical term close to 3.141592653589793238462643383..., but it is infinitely precise and thus cannot be mailed to the full extent of its precision. However, with a compass and ruler, someone could draw a graph which would represent a line of length pi.

''Time:'' This is completely abstract and cannot be mailed.{{Citation needed}}

==Transcript==
:Phone: Do you think I could mail a running chainsaw to someone?
:Cueball: I doubt it.
:Phone: What about a baby's first word?
:Cueball: Look, your obsession with sending strange things through the mail is getting out of hand.
:Phone: Can you mail a blank stare?
:Phone: A dizzying height?
:Phone: Pi?
:Cueball: ...
:Phone: Well, did you at least get that package of time I sent you?
:Cueball: I... you... no, I didn't.
:Phone: Well, there was a lot of it, so it will probably take a while.

{{comic discussion}}
[[Category:Comics featuring Cueball]]
[[Category:Language]]

Talk:2122: Size Venn Diagram

2019-03-11T16:15:10Z

I think Randall kind of missed an opportunity with the title text: he should have used the new terms as a way to fill the blank areas in the diagram, for instance 'Great Emerald' for the currently empty set Great+Small+Little+Large.[[Special:Contributions/141.101.99.221|141.101.99.221]] 14:31, 11 March 2019 (UTC)
:No, I think the diagram itself is meant to be completely correct. But I didn't check all 100+ combinations. [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 14:57, 11 March 2019 (UTC)
::Yes, I believe the diagram is correct now, but as per the title text Randall will start using new combinations of terms, probably to get their usage mainstream and move the location of the words in the diagram. I'm saying he should have created terms that would fill some blank areas. For instance, his Large Dipper would make Dipper appear in the Big+Little+Large area where we already have League.[[Special:Contributions/141.101.99.95|141.101.99.95]] 15:16, 11 March 2019 (UTC)
:He could also have placed “man” between “little” and “big” just to reference the movie ☺

Any such diagram will inevitably have small lacunae. But "Friendly Giant" is a particularly large one. [[Special:Contributions/162.158.63.172|162.158.63.172]] 15:21, 11 March 2019 (UTC)

Endian? Scott? Tits?[[Special:Contributions/108.162.219.112|108.162.219.112]] 15:23, 11 March 2019 (UTC)

Besides the transcript of what's in each category, what about a table to explain ''why'' the items categorized as they are, like:
{| class="wikitable"
!Item
!Big
!Great
!Large
!Little
!Small
|-
|Island
|Hawaii
|Cork Harbor, Ireland
|Antilles
|movie
|novel, movie
|-
|Pox
|n/a
|syphilis
|n/a
|n/a
|disease
|-
|White
|BC ski resort
|shark
|pig
|n/a
|butterfly
|}
{Unsigned|172.69.62.160}
:Yeah, it seems reasonable, I like it. Add it [[User:Netherin5|Netherin5]] ([[User talk:Netherin5|talk]]) 15:57, 11 March 2019 (UTC)
::Second but leave the unused cells blank dont put N/A in the cell. [[User:M|M]] ([[User talk:M|talk]]) 16:15, 11 March 2019 (UTC)

2122: Size Venn Diagram

2019-03-11T15:32:28Z

M: contuine of transcipt work, please review and fix

{{comic
| number = 2122
| date = March 11, 2019
| title = Size Venn Diagram
| image = size_venn_diagram.png
| titletext = Terms I'm going to start using: The Large Dipper, great potatoes, the Big Hadron Collider, and Large Orphan Annie.
}}

==Explanation==
{{incomplete|Created by a Large Terror. Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.}}
This comic uses a Venn Diagram to show which words work with different "size" words (big, small, large, great, little)

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

the comic is a five varibale venn diagram with and some words that fit with those discripters.

:Little:
:Big:
:Large:
:Great:
:Small:

:Little,Big:
:Little,Large:
:Little,Great:
:Little,Small:

:Big,large:
:Big,Great:
:Big,Small:

:Large,Great:
:Large,Small:

:Great,Small:

:Little,Big,large:
:Little,Big,Great:
:Little,Big,Small:

:Little,Large,Great:
:Little,Large,Small:

:Little,Great,Small:

:Little,Big,Large,Great:
:Little,Big,Large,Small:
:Little,Big,Great,Small:
:Little,Large,Great,Small:

:Big,Large,Great,Small:

:Little,Big,Large,Great,Small: island

{{comic discussion}}

2122: Size Venn Diagram

2019-03-11T15:16:19Z

M: start of transcpit

{{comic
| number = 2122
| date = March 11, 2019
| title = Size Venn Diagram
| image = size_venn_diagram.png
| titletext = Terms I'm going to start using: The Large Dipper, great potatoes, the Big Hadron Collider, and Large Orphan Annie.
}}

==Explanation==
{{incomplete|Created by a Large Terror. Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.}}
This comic uses a Venn Diagram to show which words work with different "size" words (big, small, large, great, little)

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:Little
:Big
:Large
:Great
:Small

:Little,Big
:Little,Large
:Little,Great
:Little,Small

:Big,large
:Big,Great
:Big,Small

:Large,Great
:Large,Small

:Great,Small

:Little,Big,large
:Little,Big,Great
:Little,Big,Small

:Little,Large,
{{comic discussion}}

User:M

2019-02-28T22:43:51Z

M: Created page with "M"

User talk:M

2019-02-28T22:42:57Z

M: Created blank page

95: The Sierpinski Penis Game

2019-02-28T22:39:20Z

M: transcrpite update

{{comic
| number = 95
| date = April 28, 2006
| title = The Sierpinski Penis Game
| image = the_sierpinski_penis_game.jpg
| titletext = Inappropriate places for the Penis Game include baby showers and terrorist attacks.
}}

==Explanation==

{{w|Chaos game|The Chaos Game}} is a method of generating a fractal by repeatedly applying randomly-chosen transformation functions to a point and plotting the position of the new point each time. The transformation functions are randomly chosen from a small, predefined list. The surprising result of this is that, even though the functions are picked randomly, a distinctly non-random fractal image emerges. The exact nature of this image depends on the list of transformation functions used.

One such fractal that can be produced by the Chaos Game is the {{w|Sierpinski Triangle}}, which is the fractal pictured in this comic.

The Penis Game, on the other hand, is a childish activity where people (usually schoolchildren) compete to shout "Penis!" increasingly loudly in the presence of an authority figure (usually a teacher) without getting in trouble.

The two games could be said to be similar in that they both involve iterations of transformations; in the Chaos Game, a point's position is transformed (moving it closer and closer to the attractor set of the transformations); in the Penis game, the volume of the phrase "Penis!" is transformed (becoming louder and louder). The difference is that the Chaos Game works by {{w|negative feedback}} (eventually settling down into a well-defined image) whereas the Penis Game involves {{w|positive feedback}} (at some point, the cry of "Penis!" will become loud enough that the culprit will get in trouble and the game will end). Nonetheless, they could be vaguely considered inverses of each other, and Randall appears to be conflating the two in this comic.

The title text may be calling attention to the fact that a mathematical object such as a fractal is also an inappropriate place in which to be playing the Penis Game.

==Transcript==
:[A large triangle is shown, with many smaller triangles inside.]
:[Words are in the triangles.]
:PENIS!
:[is in the largest tringle]
:
:Haha, penis.
:[is in the next largest tringle below the last one]

{{comic discussion}}
[[Category:Math]]
[[Category:Penis]]

2: Petit Trees (sketch)

2019-02-28T17:21:27Z

M: link to what if 26

{{comic
| number = 2
| date = September 30, 2005
| title = Petit Trees (sketch)
| image = tree_cropped_(1).jpg
| titletext = "Petit" being a reference to Le Petit Prince, which I only thought about halfway through the sketch
}}

==Explanation==
The early comics sometimes do not present a particular point, but are just pictures drawn by Randall.

''{{w|The Little Prince}}'' (in French ''Le Petit Prince)'' is a novella written by {{w|Antoine de Saint-Exupéry}} in 1943, about the titular Little Prince, who lives on an asteroid and visits other inhabited asteroids and eventually the Earth. The book is filled with drawings of the asteroid, the prince, and the travels they make. It is noted how, on occasion, {{w|Adansonia|baobab trees}} can begin to grow on these asteroids, and should they not be immediately uprooted, the growth of their roots would tear the asteroid apart. In this drawing, the roots are encircling the sphere, rather than piercing it, as Le Petit Prince describes.

''The Little Prince'' has later been referenced both in [[618: Asteroid]] and in [[1350: Lorenz]] at [http://imgs.xkcd.com/comics/a1-2014/VgSdMz8OAHQ8w5Ee432f5Q.png the end] of the space trip branch. It was also referenced to in the What If article [https://what-if.xkcd.com/26/ Leap Seconds].

==Transcript==
:[Two trees are growing on opposite sides of a sphere.]

==Trivia==
*This was the 4th comic originally posted to [[LiveJournal]].
**The previous was [[3: Island (sketch)]].
**The next was [[1: Barrel - Part 1]].
*Original title: "Le Petit"
*Original [[Randall]] quote: "Another fairly old drawing that I scanned."
*This was one of the [[:Category:First day on LiveJournal|thirteen first comics]] posted to LiveJournal within 12 minutes on Friday September 30, 2005.
*This comic was posted on [[xkcd]] when the web site opened on Sunday the 1st of January 2006.
**It was posted along [[:Category:First day on xkcd|with all 41 comics]] posted before that on LiveJournal as well as a few others.
**The latter explaining why the numbers of these 41 LiveJournal comics ranges from 1-44.
*One of the original drawings drawn on [[:Category:Checkered paper|checkered paper]].
*

{{comic discussion}}
[[Category:Comics posted on livejournal| 04]]
[[Category:First day on LiveJournal| 04]]
[[Category:First day on xkcd]]
[[Category:Checkered paper]]

2117: Differentiation and Integration

2019-02-28T00:11:07Z

M: format edits

{{comic
| number = 2117
| date = February 27, 2019
| title = Differentiation and Integration
| image = differentiation_and_integration.png
| titletext = "Symbolic integration" is when you theatrically go through the motions of finding integrals, but the actual result you get doesn't matter because it's purely symbolic.
}}

==Explanation==
{{incomplete|Created by a BESSEL FUNCTION? Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.}}
This comic provides a {{w|flowchart}} purporting to show the process of differentiation, and another for integration.

{{w|Derivative|Differentiation}} and {{w|Antiderivative|Integration}} are two major components of {{w|calculus}}. As many Calculus 2 students are painfully aware, integration is much more complicated than the differentiation it undoes.

However, Randall dramatically overstates this point here. After the first step of integration, Randall assumes that any integration can not be solved so simply, and then dives into a step named "????", suggesting that it is unknowable how to proceed. The rest of the flowchart is (we can assume deliberately) even harder to follow, and does not reach a conclusion. This is in contrast to the simple, straightforward flowchart for differentiation. The fact that the arrows in the bottom of the integration part leads to nowhere indicates that "Phone calls to mathematicians", "Oh no" and "Burn the evidence" are not final steps in the difficult journey. The flowchart could be extended by Randall to God-know-where extents.

It should be noted that Randall slightly undermines his point by providing four different methods, and an "etc", for attempting differentiation with no guidelines for selecting between them.

===Differentiation===
'''{{w|Chain rule}}'''

For any <math> \frac{d}{dx}f(x)=f'(x)</math> and <math> \frac{d}{dx}g(x)=g'(x) </math>, it follows that <math> \frac{d}{dx}(f(g(x)))=f'(g(x))*g'(x)</math>.

'''{{w|Power Rule}}'''

For any <math> f(x)=x^a </math>, it follows that <math> \frac{d}{dx}f(x)=a*x^{a-1} </math>.

'''{{w|Quotient rule}}'''

For any <math> \frac{d}{dx}f(x)=f'(x)</math> and <math> \frac{d}{dx}g(x)=g'(x) </math>, it follows that <math> \frac{d}{dx} \frac{f(x)}{g(x)}=\frac{f'(x)g(x)-f(x)g'(x)}{(g(x))^2}</math> if <math>g(x)\ne 0</math>.

'''{{w|Product rule}}'''

For any <math> \frac{d}{dx}f(x)=f'(x)</math> and <math> \frac{d}{dx}g(x)=g'(x) </math>, it follows that <math> \frac{d}{dx}(f(x)*g(x))=f'(x)*g(x)+f(x)*g'(x)</math>.

===Integration===
'''{{w|Integration by parts}}'''

The "product rule" run backwards. Since <math>(uv)' = uv' + u'v</math>, it follows that by integrating both sides you get <math> uv = \int u dv + \int v du</math>, which is more commonly written as <math>\int u dv = uv - \int v du</math>. By finding appropriate values for functions <math>u, v</math> such that your problem is in the form <math>\int u dv</math>, your problem ''may'' be simplified.

'''{{w|Integration by substitution|Substitution}}'''

The "chain rule" run backwards. Since <math> d(f(u)) = (df(u))du</math>, it follows that <math>f(u) = \int df(u) du</math>. By finding appropriate values for functions <math>f, u</math> such that your problem is in the form <math>\int df(u) du</math> your problem ''may'' be simplified.

'''{{w|Cauchy's integral formula|Cauchy's Formula}}'''
???

'''{{w|Partial_fraction_decomposition#Application_to_symbolic_integration|Partial Fractions}}'''
???

'''{{w|Install Mathematica}}'''

{{w|Mathematica}} is a modern technical computing system spanning most areas. One of its features is to compute mathematical functions. This step in the flowchart is install and use Mathematica to compute to do the integration for you.

'''{{w|Riemann integral|Riemann Integration}}'''
The Riemann integral is a definition of definite integration. Elementary textbooks on calculus sometimes present finding a definite integral as a process of approximating an area by strips of equal width and then taking the limit as the strips become narrower. Riemann integration removes the requirement that the strips have equal width, and so is a more flexible definition. However there are still many functions for which the Riemann integral doesn't converge, and consideration of these functions leads to the Lesbegue Integral. Riemann integration is not a method of calculus appropriate for finding the anti-derivative of an elementary function.

'''{{w|Stokes' Theorem}}'''
???

'''{{w|Risch Algorithm}}'''
The Risch Algorithm is a complex procedure that reduces the process of symbolic integration to purely algebraic steps. It is implemented in Computer Algebra software, such as Mathematica.

'''{{w|Bessel function}}'''
???

'''{{w|Symbolic integration}}'''
Mentioned in the title text. ???

''' Burn the evidence '''
In a parody of detective novels, this may refer to the burning of your work to avoid the shame of being unable to solve the integration problem.
Alternatively, this could be an ironic hint to the fact that in order to find the integral, it may even be necessary to break the law or upset higher powers, so that the negative consequences of a persecution can only be avoided by destroying the evidence.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[Two flow charts are shown.]

:[The first flow chart has four steps in simple order, one with multiple recommendations.]
:DIFFERENTIATION
:Start
:Try applying
::Chain Rule
::Power Rule
::Quotient Rule
::Product Rule
::Etc.
:Done?
::Yes
::No
:Done!

[The second flow chart begins like the first, then descends into chaos.]
:INTEGRATION
:Start
:Try applying
::Integration by Parts
::Substitution
:Done?
:Haha, Nope!

:[Chaos, Roughly from left to right, top to bottom, direction arrows not included.]
::Cauchy's Formula
::????
::???!?
::???
::???
::?
::Partial Fractions
::??
::?
::Install Mathematica
::?
::Riemann Integration
::Stokes' Theorem
::???
::?
::Risch Algorithm
::???
::[Sad face.]
::?????
::???
::What the heck is a Bessel Function??
::Phone calls to mathematicians
::Oh No
::Burn the Evidence


{{comic discussion}}

2117: Differentiation and Integration

2019-02-28T00:07:56Z

{{comic
| number = 2117
| date = February 27, 2019
| title = Differentiation and Integration
| image = differentiation_and_integration.png
| titletext = "Symbolic integration" is when you theatrically go through the motions of finding integrals, but the actual result you get doesn't matter because it's purely symbolic.
}}

==Explanation==
{{incomplete|Created by a BESSEL FUNCTION? Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.}}
This comic provides a {{w|flowchart}} purporting to show the process of differentiation, and another for integration.

{{w|Derivative|Differentiation}} and {{w|Antiderivative|Integration}} are two major components of {{w|calculus}}. As many Calculus 2 students are painfully aware, integration is much more complicated than the differentiation it undoes.

However, Randall dramatically overstates this point here. After the first step of integration, Randall assumes that any integration can not be solved so simply, and then dives into a step named "????", suggesting that it is unknowable how to proceed. The rest of the flowchart is (we can assume deliberately) even harder to follow, and does not reach a conclusion. This is in contrast to the simple, straightforward flowchart for differentiation. The fact that the arrows in the bottom of the integration part leads to nowhere indicates that "Phone calls to mathematicians", "Oh no" and "Burn the evidence" are not final steps in the difficult journey. The flowchart could be extended by Randall to God-know-where extents.

It should be noted that Randall slightly undermines his point by providing four different methods, and an "etc", for attempting differentiation with no guidelines for selecting between them.

===Differentiation===
'''{{w|Chain rule}}'''

For any <math> \frac{d}{dx}f(x)=f'(x)</math> and <math> \frac{d}{dx}g(x)=g'(x) </math>, it follows that <math> \frac{d}{dx}(f(g(x)))=f'(g(x))*g'(x)</math>.

'''{{w|Power Rule}}'''

For any <math> f(x)=x^a </math>, it follows that <math> \frac{d}{dx}f(x)=a*x^{a-1} </math>.

'''{{w|Quotient rule}}'''

For any <math> \frac{d}{dx}f(x)=f'(x)</math> and <math> \frac{d}{dx}g(x)=g'(x) </math>, it follows that <math> \frac{d}{dx} \frac{f(x)}{g(x)}=\frac{f'(x)g(x)-f(x)g'(x)}{(g(x))^2}</math> if <math>g(x)\ne 0</math>.

'''{{w|Product rule}}'''

For any <math> \frac{d}{dx}f(x)=f'(x)</math> and <math> \frac{d}{dx}g(x)=g'(x) </math>, it follows that <math> \frac{d}{dx}(f(x)*g(x))=f'(x)*g(x)+f(x)*g'(x)</math>.

===Integration===
'''{{w|Integration by parts}}'''

The "product rule" run backwards. Since <math>(uv)' = uv' + u'v</math>, it follows that by integrating both sides you get <math> uv = \int u dv + \int v du</math>, which is more commonly written as <math>\int u dv = uv - \int v du</math>. By finding appropriate values for functions <math>u, v</math> such that your problem is in the form <math>\int u dv</math>, your problem ''may'' be simplified.

'''{{w|Integration by substitution|Substitution}}'''

The "chain rule" run backwards. Since <math> d(f(u)) = (df(u))du</math>, it follows that <math>f(u) = \int df(u) du</math>. By finding appropriate values for functions <math>f, u</math> such that your problem is in the form <math>\int df(u) du</math> your problem ''may'' be simplified.

'''{{w|Cauchy's integral formula|Cauchy's Formula}}'''
???

'''{{w|Partial_fraction_decomposition#Application_to_symbolic_integration|Partial Fractions}}'''
???
'''Install Mathematica'''

{{w|Mathematica}} is a modern technical computing system spanning most areas. One of its features is to compute mathematical functions. This step in the flowchart is install and use Mathematica to compute to do the integration for you.

'''{{w|Riemann integral|Riemann Integration}}'''
The Riemann integral is a definition of definite integration. Elementary textbooks on calculus sometimes present finding a definite integral as a process of approximating an area by strips of equal width and then taking the limit as the strips become narrower. Riemann integration removes the requirement that the strips have equal width, and so is a more flexible definition. However there are still many functions for which the Riemann integral doesn't converge, and consideration of these functions leads to the Lesbegue Integral. Riemann integration is not a method of calculus appropriate for finding the anti-derivative of an elementary function.

'''{{w|Stokes' Theorem}}'''
???

'''{{w|Risch Algorithm}}'''
The Risch Algorithm is a complex procedure that reduces the process of symbolic integration to purely algebraic steps. It is implemented in Computer Algebra software, such as Mathematica.

'''{{w|Bessel function}}'''
???

'''{{w|Symbolic integration}}'''
Mentioned in the title text. ???

''' Burn the evidence '''
In a parody of detective novels, this may refer to the burning of your work to avoid the shame of being unable to solve the integration problem.
Alternatively, this could be an ironic hint to the fact that in order to find the integral, it may even be necessary to break the law or upset higher powers, so that the negative consequences of a persecution can only be avoided by destroying the evidence.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[Two flow charts are shown.]

:[The first flow chart has four steps in simple order, one with multiple recommendations.]
:DIFFERENTIATION
:Start
:Try applying
::Chain Rule
::Power Rule
::Quotient Rule
::Product Rule
::Etc.
:Done?
::Yes
::No
:Done!

[The second flow chart begins like the first, then descends into chaos.]
:INTEGRATION
:Start
:Try applying
::Integration by Parts
::Substitution
:Done?
:Haha, Nope!

:[Chaos, Roughly from left to right, top to bottom, direction arrows not included.]
::Cauchy's Formula
::????
::???!?
::???
::???
::?
::Partial Fractions
::??
::?
::Install Mathematica
::?
::Riemann Integration
::Stokes' Theorem
::???
::?
::Risch Algorithm
::???
::[Sad face.]
::?????
::???
::What the heck is a Bessel Function??
::Phone calls to mathematicians
::Oh No
::Burn the Evidence


{{comic discussion}}

2117: Differentiation and Integration

2019-02-27T18:15:36Z

2117: Differentiation and Integration

2019-02-27T18:06:46Z

2117: Differentiation and Integration

2019-02-27T18:05:47Z

M: A step up for the parts that I think need to be discussed

695: Spirit

2019-02-14T23:15:21Z

M: changed she to it when talking about spirit and added link to 2111

{{comic
| number =695
| date =January 29, 2010
| title =Spirit
| image =spirit.png
| titletext =On January 26th, 2274 Mars days into the mission, NASA declared Spirit a 'stationary research station' expected to stay operational for several more months until the dust buildup on its solar panels forces a final shutdown.
}}
==Explanation==
{{w|Anthropomorphism}} (or personification) is attribution of distinctly human characteristics to animals or non-living things. We make parallels between ourselves and objects, to the point where some people even jocularly worry about hurting the feelings of, say, an automobile. We call ships "she." We see human faces in objects like the arrangement of lights on the front of a car.

The {{w|Spirit rover|''Spirit'' Mars rover}}, like many high-functioning robots in real life and fiction, shares many physical similarities with a human being or animal. It has a head, eyes, neck, body, legs, feet, arms, and a hand. And it strikingly resembles robots from fiction, such as Johnny 5 from ''{{w|Short Circuit (1986 film)|Short Circuit}},'' or {{w|WALL-E}} from the film with the same name.

Thus, this comic explores what the ''Spirit'' rover's life would be like if it had a human personality. The rover was never intended to return to Earth, and lasted 5¼ active years on the Martian surface, far exceeding its expected mission duration of 90 Martian days. A sentient robot might assume that after its initially planned 90 {{w|Timekeeping on Mars|Martian day}} mission was over, it'd get to return home. So, though this heartbreakingly did not happen, ''Spirit'', possibly in a pun on its name, keeps its hopes alive while continously analyzing rock after rock for ''years.''

It would be cruelty of the absolute worst kind to create an intelligence with such feelings, and then abandon it on an uninhabited planet with no intention of ''ever'' bringing it home. So one is rather heartened that the ''Spirit'' rover ''is,'' in fact, just a programmed machine, and we explained to it very carefully that it was embarking on a one-way trip.

It is worth pointing out that ''{{w|Opportunity rover|Opportunity}},'' the rover's twin, has been even more wildly successful and was only shut down in February 2019 [[2111: Opportunity Rover]]. More than five years after this comic, when Opportunity had passed a Marathon distance, [[Randall]] celebrated this rover with the comic [[1504: Opportunity]].

The title text has an apparent miscount: January 26, 2010, is more like sol (Martian day) 2156 by JPL's [http://marsrovers.jpl.nasa.gov/mission/status_spiritAll_2010.html#sol2151 mission status site,] not 2274.

Final contact was on sol 2210 (March 22, 2010).

==Transcript==
:[The ''Spirit'' rover is on the surface of Mars.]
:Day 1 of 90
:''Spirit'' (thinking): 89 days to go!

:Day 88 of 90
:''Spirit'' (thinking): Two days until I go home!

:Day 91 of 90
:''Spirit'' (thinking): ?

:Day 103 of 90
:''Spirit'' (thinking): Maybe I didn't do a good enough job.

:Day 127 of 90
:''Spirit'' (thinking): Maybe if I do a good enough job, they'll let me come home.

:Day 857 of 90
:''Spirit'' (thinking): I thought I analyzed that rock really well.
:''Spirit'' (thinking): It's okay, I'll do the next one better.

:Day 1293 of 90
:''Spirit'' (thinking): Sandstorm. Power dying.
:''Spirit'' (thinking): But a good rover would keep going. A good rover like they wanted.

:Day 1944 of 90
:''Spirit'' (thinking): Oh no.
:''whirrrr''
:''Spirit'' (thinking): I'm stuck.
:''whirrrr''

:''Spirit'' (thinking): Did I do a good job?
:''Spirit'' (thinking): Do I get to come home?
:''Spirit'' (thinking): Guys?

:[''Spirit'' rests in the middle of a vast Martian landscape.]

==Trivia==
The strip had a strong emotional impact on the fans of the rover, who created a number of alternative versions and endings for it.

In a [http://blog.xkcd.com/2010/02/08/android-bug-reports-songs-rovers/ blog post] Randall mentioned a [https://imgs.xkcd.com/blag/spirit_rewrite_unknown_author.png rewrites] of this comic. [http://xkcdsw.com/2486 Several] [http://xkcdsw.com/2485 others] [http://xkcdsw.com/3524 were] [http://xkcdsw.com/2483 made], including a [http://xkcdsw.com/2488 silent] one.

Many alternative endings were also made:
* some are [http://xkcdsw.com/3729 sad], some [http://xkcdsw.com/2492 sarcastic], some [http://xkcdsw.com/3100 romantic]
* some look forward to the day when Spirit is finally [http://xkcdsw.com/2487 recovered] ([https://imgur.com/r/xkcd/zNi5YSZ this one] was seen at {{Wikipedia|CERN}}). Others imagine a [http://xkcdsw.com/3968 future] when the rover is not alone any more.

{{comic discussion}}
[[Category:Comics with color]]
[[Category:Mars rovers]]
[[Category:Science]]
[[Category:Artificial Intelligence]]

1504: Opportunity

2019-02-14T22:55:53Z

M: specifid that 5352 was in sols and also put in the corresponding number in earth days

{{comic
| number = 1504
| date = March 27, 2015
| title = Opportunity
| image = opportunity.png
| titletext = We all remember those famous first words spoken by an astronaut on the surface of Mars: "That's one small step fo- HOLY SHIT LOOK OUT IT'S GOT SOME KIND OF DRILL! Get back to the ... [unintelligible] ... [signal lost]"
}}

==Explanation==
This comic is talking about the robotic science platform {{w|Opportunity (rover)|''Opportunity''}}. On January 25, 2004, the Opportunity rover landed on the surface of {{w|Mars}} for the purpose of gathering data about the surface of Mars. Opportunity has proven remarkably robust, and the comic extrapolates the rover's resilience to absurdity for comedic effect. As of Feb 12th, 2019, the Opportunity rover has finally been {{w|Opportunity mission timeline|declared dead}} after 5352 Sols (Mars Days) or 5500 Earth days on Mars.

The comic depicts the two scientists [[Ponytail]] and [[Hairbun]] at ground control being amazed at this fact already in 2010, and (maybe the same two) scientists continue to debate this in 2015 in the second panel.

They mention another Martian rover, {{w|Spirit (rover)|''Spirit''}} that was also sent to Mars on the same date as Opportunity. Unfortunately, it became stuck and a sand storm covered its solar panels. On March 22, 2010, it was thought that Spirit's batteries finally ran out, marking the end of its mission. This was covered in [[695: Spirit]], in which the Spirit rover is also portrayed with an anthropomorphic personality.

In 2023, Opportunity is still moving despite having supposedly no power source. It also became aggressive and deactivated the {{w|Mars 2020|rover sent in 2020}}. [[Cueball]] and [[Megan]] can't explain how it moves, but investigating is now too dangerous. This evolution is similar to the stories of {{w|HAL 9000}} (from {{w|2001: A Space Odyssey (film)|''2001: A Space Odyssey''}}) and {{w|List of Star Trek characters (T–Z)#V'Ger|V'Ger}} (from ''{{w|Star Trek: The Motion Picture}}''), both of which became dangerous to human beings.

By 2450, humans have colonized and {{w|terraformed}} Mars. Maybe it is the 2023 Cueball and Megan's descendants that are looking out over their huge "kingdom" from the capital on Mars. However ''Opportunity'' is by now dominating half of the planet and will not allow humans to enter its dark reign.

"Everything the light touches" is a reference to a line by {{w|List of The Lion King characters#Mufasa|Mufasa}} in ''{{w|The Lion King}}''. Mufasa's son {{w|List of The Lion King characters#Simba|Simba}} then asks "What about that shadowy place?" and Mufasa tells him "That is beyond our borders. You must never go there". This was used again in [[1608: Hoverboard]], where [http://www.explainxkcd.com/wiki/images/a/a0/1608_0986x1076y_Our_kingdom_from_a_cliff.png Cueball tells the same line] to Ponytail in the left part of the world. In [http://what-if.xkcd.com/48 what-if xkcd], concerning the end of the sun shining on the British Empire, Cueball tells a child that everything the light touches is their kingdom, except for France, (which is covered in shadows,) to which Cueball replies, "That's France. We'll get it one of these days."

The title text forecasts the first words of the first astronauts on the surface of Mars. At first, the astronaut copies the first words of {{w|Neil Armstrong}} on the Moon ("That's one small step for [a] man, one giant leap for mankind") but it is interrupted by the ''Opportunity'' rover. Opportunity has a drill to collect Martian rock samples, but here it is heavily suggested that the drill is being used as a weapon against the astronaut.

==Transcript==
:[The year (or year and first sentence) for each panel is written in a small frame at the top of each panel. It breaks the top frame of the panels.]

:[Ponytail is sitting at a computer, facing left. Hairbun stands behind her.]
:2010:
:Ponytail: After six years, ''Spirit'' is down, but ''Opportunity'' is still going strong.
:Hairbun: Tough little rover!

:[Opportunity traveling on Mars. Text is written in frames with zigzag lines]
:2015:
:Off-screen: Eleven years, wow.
:Off-screen 2: Wasn't the original mission 90 days?
:Off-screen: This is starting to get weird.

:[Cueball and Megan sitting at a computer, facing right.]
:2023:
:Cueball: The battery is totally disconnected. How can it still be moving??
:Megan: Given what it did to the Mars 2020 rover, we may never know.

:[Two Martian inhabitants looking like Cueball and Megan stands on a cliff edge pointing towards a dark, mountainous region. Behind them are a tower and a hover car]
:2450, terraformed Mars, Martian imperial capital:
:Martian Cueball: Everything the light touches is our kingdom.
:Martian Megan: What's that dark area?
:Martian Cueball: That is ''Opportunity's'' half of the planet. We must never go there.

{{comic discussion}}

[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Hairbun]]
[[Category:Multiple Cueballs]]
[[Category:Mars rovers]]
[[Category:Artificial Intelligence]]
[[Category:The Lion King]]

1688: Map Age Guide

2019-02-03T16:27:13Z

M: /* Explanation */ 58 option fine connects with 63 (changed STOP to go to 63)

{{comic
| number = 1688
| date = June 1, 2016
| title = Map Age Guide
| image = map_age_guide.png
| titletext = Does the screeching chill your blood and herald death? If yes, banshee. If no, seagull.
}}

* A [http://xkcd.com/1688/large/ larger version] of this image can be found by clicking the image at xkcd.com - the comic's page can also be accessed by clicking on the comic number above.

==Explanation==
{{incomplete|Errors in the year etc. should be collected in the [[#Trivia|trivia section]]. Another table with the possible year ranges and the length of their interval would be interesting. (Only for the political maps) What are the longest ranges after 1805 and how finely dissected are the maps closer to today?}}
The comic consists of a flowchart depicting various ways to tell what era a map is from based on present country borders and land forms. (Except in the Not a Political Map Branch (from "Can you see the familiar continents?" downwards), the comic applies to a political map.) While many of the options are very serious, a few bizarre options reference fictional maps ({{w|Discworld}}, {{w|Narnia}}, and Tolkien's {{w|Middle-earth}}), or consider that seagulls, staplers, tubas, or breadboxes could be mistaken for a map. Randall also mentions US President {{w|Jimmy Carter}} being attacked by a giant swimming rabbit, an event previously referenced as one we must never forget in [[204: America]].

The flowchart, although probably effective in eventually identifying the production year of certain maps, is designed in a rather inefficient way, as some early distinctions are already on a very detailed level before some really important distinctions (fictional or non-political map) are made. This, of course, adds to the humorous tone of the comic. It is also hampered by several smaller or larger error (see [[#Trivia|trivia]]), the biggest being a whole section on I-25 that gives years in the range 1948–1952, before I-25 was built, and coming from a question that fixed the year range to 1960–1961.

Additionally, (possible) future maps including a "Radioactive Exclusion Zone" in the place of Colorado are mentioned. It predicts that some kind of nuclear incident will occur in Colorado (possibly at Rulison or Rio Blanco nuclear testing sites) in 2022. It also predicts that the area will be infested by radioactive spiders one year later.

The title text continues the path where the user has confused a seagull for a map by inquiring if the (presumed) seagull might be a banshee based on the effect of its screams.

===Table===
*Going through the flowchart, taking the leftmost path first, recursively. (Note there is no recursive loop). See also {{w|Depth-first search}}.
**"Prior Date Range" is the range determined immediately before the question, carried over from the previous question.
**"Question Date Range" is the range each answer choice implies.
**"New Date Range" is the intersection of the Prior Date Range and the Question Date Range for each choice, and is the range determined by all questions hitherto answered.

{| border =1 width=100% cellpadding=5 class="wikitable"
! # !! Question !! Explanation !! Prior Date Range !! Question Date Range !! New Date Range
|-
! 1
| '''Istanbul or Constantinople'''
| The largest city in {{w|Turkey}} is famous for having different names at different times or to different people. Variations on both names go back at least 1,000 years. Other names have also been used at various points. {{w|Istanbul}} has been the official name in Western languages since the 1920s (although it's been the native name since 1453), although Western maps often referred to it as Constantinople as late as the 1960s; on the flowchart, the choice of name appears to go with the 1920s date. The name changes are the subject of a [http://mentalfloss.com/article/60314/original-istanbul-not-constantinople song], originally by the Four Lads, but now mainly known for the They Might Be Giants recording.
| '''Start here'''
|
* Constantinople: 330 – 1928
* Neither: inconclusive
* Istanbul: 1928+
|
* Constantinople: 330 – 1928 (Go to 2)
* Neither: inconclusive (Go to 19)
* Istanbul: 1928+ (Go to 51)
|-
| colspan="6" | '''Note:''' the chart splits here into three divisions, each from a choice in question 1. The Neither Division will attempt to use other indicators to sort maps into one of the other two divisions or branches thereof, or, after 5 failures to find a country, conclude that the "map" in question is not a political map and proceed to find out what it is (the Not a Political Map Branch). The Constantinople and Istanbul Divisions are linear except where the Neither Division joins them as stated above.
|-
! colspan="6" | Constantinople Division
|-
! 2
| '''Do any of these exist?'''
* '''Independent Canada'''
* '''US Territory of Alaska'''
* '''Tokyo'''
| All these seem to specify a date cut-off of 1867/8, but there are caveats attached to each:
* {{w|Canada}} gained its independence gradually, but it would appear as its own country (the Dominion of Canada) on maps sometime between the {{w|Constitution Act, 1867}} (which created Canada as a British dominion) and the {{w|Statute of Westminster 1931}} (which made Canada largely self-governing).
* The {{w|Territory of Alaska}} existed between 1912 (previously, it was a US district) and 1959 (when it became a state). The US has owned Alaska since the 1867 {{w|Alaska Purchase}}, but it was not a territory then.
* {{w|Tokyo}} was once called Edo. It was renamed Tokyo (which means "Eastern Capital") when it became the capital in 1868. [https://books.google.com/ngrams/graph?content=Tokyo%2CTokei&year_start=1870&year_end=1880&corpus=15&smoothing=3&share=&direct_url=t1%3B%2CTokyo%3B%2Cc0%3B.t1%3B%2CTokei%3B%2Cc0 Most English books around then] would actually have called it "Tokei," the Chinese reading. The name Tokyo didn't take off until {{w|Hepburn romanization}} was popularized in the 1880s.
| 330–1928 (from 1)
1299–1922 (from 19 in the Neither Division)
(from 24 in the Neither Division)
|
* No: 1867-
* Yes: 1868+
|
* No: 330–1867 (Go to 3)
* Yes: 1868–1928 (Go to 11)
|-
! colspan="6" | Holy Roman Empire Branch
|-
! 3
| '''The Holy Roman Empire?'''
| The predecessor to modern Germany, the {{w|Holy Roman Empire}} was a union of hundreds of small states in Central Europe. Nationalism and the concept of the {{w|nation state}} hadn't taken off yet, so countries as we know them didn't really exist. There were just small lands, often with keenly contested borders, owned by minor aristocracy who pledged allegiance to one of the big powers. The HRE was {{w|Dissolution of the Holy Roman Empire|dissolved}} in 1806 after it was invaded by Napoleon, arguably the first leader to realise the potential of making a nation salute a flag.
| 330–1867
|
* Yes: 899–1806
* No: 899- or 1806+
|
* Yes: 899–1806 (Stated in comic as "1805 or earlier," since modern map-making was fuzzy as a concept prior) ('''Stop''')
* No: 330–899 or 1806–67 (Go to 4)
|-
! 4
| '''The United States?'''
| The original {{w|Thirteen Colonies|13 colonies}} declared independence in 1776. A map that does not include ''either'' the HRE ''or'' the USA must be older than the HRE, which would put the map sometime prior to 1000 AD, when there really were no countries, and English wasn't used yet, hence Randall's comment.
| 330–899 or 1806–67
|
* No: 1776-
* Yes: 1776+
|
* No: 330–899 (Not stated in comic, since a map in this period is probably not in English, which violates a proviso of the comic) ('''Stop''')
* Yes: 1806–67 (Go to 5)
|-
! 5
| '''Texas is... Part of Mexico? Independent? Part of the US?'''
| {{w|Mexico}} (and before its independence, {{w|New Spain}}) occupied the area modern-day Texas from around 1718 ({{w|Spanish Texas|when the first permanent Spanish settlements were founded}}) to the {{w|Texas Declaration of Independence}} in 1836 (the comic apparently cited 1834 as the date) – the land called "Texas" was only a small part of the modern-day state. The {{w|Republic of Texas}} only lasted a decade and joined the US in 1846.
| 1806–67
|
* Part of Mexico: 1718–1836
* Independent: 1836–46
* Part of the US: 1846+
|
* Part of Mexico: 1806–36 (Go to 6)
* Independent: 1836–46 (stated in comic as 1834–45 – a discrepancy) ('''Stop''')
* Part of the US: 1846–67 (Go to 9)
|-
! 6
| '''Florida is part of... Spain? The US?'''
| Spain occupied {{w|Florida}} (as {{w|East Florida}} and {{w|West Florida}}) but frankly they didn't actually want it – it was expensive to send people to settle it, and there wasn't much economic value in it. So they gave it to the US for free in the 1819 {{w|Adams–Onís Treaty}} (which took effect in 1821) in exchange for the US giving up parts of Mexico and paying off angry Spanish settlers. (For some reason, the comic treats Florida as part of the US in 1818; see questions 7 and 8.)
| 1806–36
|
* Spain: 1565–1763 or 1783–1821
* The US: 1821+
|
* Spain: 1806–21 (Go to 7)
* The US: 1821–36 (Go to 8)
|-
! 7
| '''{{w|Paraguay}}?'''
| Declared independence from Spain in 1811 (although it might appear on older maps as the Spanish Province of Paraguay).
| 1806–21
|
* No: 1811-
* Yes: 1811+
|
* No: 1806–11 (stated in comic as 1806–10) ('''Stop''')
* Yes: 1811–21 (stated in comic as 1811–17 – a discrepancy (see question 6)) ('''Stop''')
|-
! 8
| '''{{w|Venezuela}} and/or {{w|Ecuador?}}'''
| Both declared independence from {{w|Gran Colombia}} (Greater Colombia) in 1830.
| 1821–36
|
* No: 1830-
* Yes: 1830+
|
* No: 1821–30 (stated in comic as 1818–29 – a discrepancy (see question 6)) ('''Stop''')
* Yes: 1830–36 (stated in comic as 1830–33 – a discrepancy (see question 5)) ('''Stop''')
|-
! 9
| '''Does Russia border the Sea of Japan?'''
| The 1858 {{w|Treaty of Aigun}} brought the {{w|Russian Empire}}'s border to the {{w|Sea of Japan}}.
| 1846–67
|
* No: 1858-
* Yes: 1858+
|
* No: 1846–58 (Go to 10)
* Yes: 1858–67 ('''Stop''')
|-
! 10
| '''The US's southern border looks...'''
| The last southward expansion of the US is the 1854 {{w|Gadsden Purchase}}, where the US bought a chunk of what is now {{w|Arizona}} and {{w|New Mexico}} so they could build a railway that avoided unfavourable terrain. The southern border looks "weird" before that because we are accustomed to the current border shape.
| 1846–58
|
* Weird: 1854-
* Normal: 1854+
|
* Weird: 1846–54 (stated in comic as 1846–53) ('''Stop''')
* Normal: 1854–58 (stated in comic as 1854–56 – a discrepancy (where is 1857?)) ('''Stop''')
|-
! colspan="6" | South Africa Branch
|-
! 11
| '''{{w|South Africa}}?'''
| The {{w|Union of South Africa}} was created in 1910 out of the four British colonies ({{w|Cape Colony}}, {{w|Colony of Natal|Natal}}, {{w|Transvall Colony|Transvaal}}, and {{w|Orange River Colony|Orange River}}), although South Africa was then not yet fully independent from the United Kingdom (which would not happen until 1931).
| 1868–1928
|
* No: 1910-
* Yes: 1910+
|
* No: 1868–1910 (Go to 12)
* Yes: 1910–28 (Go to 16)
|-
! 12
| '''Rhodesia?'''
| The region that now makes up {{w|Zambia}} and {{w|Zimbabwe}} was named {{w|Rhodesia (region)|"Rhodesia"}} by the {{w|British South Africa Company}} in 1895. An {{w|Rhodesia|unrecognised state}} (1965–79) and a {{w|Southern Rhodesia|colony}} (1923–80 on-and-off) also bore this name, but they are both outside the Prior Date Range.
| 1868–1910
|
* No: 1895-
* Yes: 1895+
|
* No: 1868–95 (Go to 13)
* Yes: 1895–1910 (Go to 15)
|-
! 13
| '''Is Bolivia landlocked?'''
| {{w|Bolivia}} lost its coastal territory to {{w|Chile}} in the {{w|War of the Pacific}}, ceding {{w|Antofagasta}} in the {{w|Treaty of Valparaiso}} in 1884.
| 1868–95
|
* No: 1825–84
* Yes: 1884+
|
* No: 1868–84 (Go to 14)
* Yes: 1884–95 ('''Stop''')
|-
! 14
| '''"Buda" and "Pest" or "Budapest"?'''
| In 1873, the cities of {{w|Buda}} and {{w|Pest, Hungary|Pest}} joined together to form the city of {{w|Budapest}}.
| 1868–84
|
* Buda and Pest: 1247–1873
* Budapest: 1873+
|
* Buda and Pest: 1868–73 (stated in comic as 1868–72) ('''Stop''')
* Budapest: 1873–84 (stated in comic as 1873–83) ('''Stop''')
|-
! 15
| '''Is Norway part of Sweden?'''
| {{w|Norway}} was ceded to {{w|Sweden}} in 1814, from which it separated in 1905.
| 1895–1910
|
* Yes: 1814–1905
* No: 1814- or 1905+
|
* Yes: 1895–1905 (Stated in comic as 1896–1905) ('''Stop''')
* No: 1905–10 (Stated in comic as 1906–09) ('''Stop''')
|-
! 16
| '''Austria-Hungary?'''
| {{w|Austria-Hungary}} formed in 1867 and dissolved in 1918. (However, during that time period, it was frequently called simply "Austria"; it is more consistently called "Austria-Hungary" in historical maps created later, for example, in history textbooks illustrating the alliances of {{w|World War I}}.)
| 1910–28
|
* Yes: 1867–1918
* No: 1918+
|
* Yes: 1910–18 (Go to 17)
* No: 1918–28 (Go to 18)
|-
! 17
| '''Albania?'''
| {{w|Albania}} declared independence from the {{w|Ottoman Empire}} in 1912.
| 1910–18
|
* No: 1912-
* Yes: 1912+
|
* No: 1910–12 ('''Stop''')
* Yes: 1912–18 (stated in comic as 1913–18) ('''Stop''')
|-
! 18
| '''Leningrad?'''
| {{w|Saint Petersburg}} was known as Leningrad between 1924 and 1991. The city was founded in 1703 as Saint Petersburg (specific spellings vary); in August 1914, due to major anti-German sentiment related to WWI, it was renamed Petrograd (essentially the Russian translation of Petersburg). On January 26, 1924, five days after the death of {{w|Vladimir Lenin}} (the main revolutionary leader), the new Communist government (hostile to both the the Orthodox {{w|Saint Peter}} the city was named after and the Czar {{w|Peter the Great}} who named it) renamed the city Leningrad in his honor. After the decline of the Soviet government in 1991, the name became unpopular, and a referendum in June 1991 (concurrently with the first Russian presidential election) restored the name Saint Petersburg for the city (officially in September 1991), which it holds to this day.
| 1918–28
|
* No: 1924- or 1991+
* Yes: 1924–91
|
* No: 1918–24 (stated in comic as 1919–23) ('''Stop''')
* Yes: 1924–28 (stated in comic as 1924–29) ('''Stop''')
|-
! colspan="6" | Neither Division
|-
! 19
| '''Does the Ottoman Empire exist?'''
| The {{w|Ottoman Empire}} was founded in 1299, and defeated and dissolved on November 1, 1922 when the sultanate was abolished.
| Inconclusive
|
* Yes: 1299–1922
* No: 1299- or 1922+
|
* Yes: 1299–1922 (Go to 2 in the Constantinople Division)
* No: 1299- or 1922+ (Go to 20)
|-
! 20
| '''The Soviet Union?'''
| The {{w|Soviet Union}} is one of the largest countries ever to exist consisting of Russia and large portions of eastern Europe and central Asia. It was a major political force from December 28, 1922, when several allied Soviet republics united, to 1991, when it broke up.
''Note:'' This question is the same as question 51 in the Istanbul Division, but because there a Prior Date Range of 1928+ has already been established by the presence of Istanbul, we need one more question to determine whether we are within the range of 1928+.
| 1299- or 1922+
|
* Yes: 1922–91
* No: 1922- or 1991+
|
* Yes: 1922–91 (Go to 21)
* No: 1299- or 1922 (November 1–December 28) or 1991+ (Go to 22)
|-
! 21
| '''Saudi Arabia?'''
| The Kingdom of {{w|Saudi Arabia}} was founded in 1932. It is the first modern state to exert control over the area it claims, which previously were controlled by various tribal leaders. Most maps before 1932 will not mark the area as belonging to a nation at all, will attempt to mark the various shifting chieftains, or will attribute the land to the {{w|Ottoman Empire}}, which claimed the land but did not effectively control it.
| 1922–91
|
* Yes: 1932+
* No: 1932-
|
* Yes: 1932–91 (Go to 52 in the Istanbul Division)
* No: 1922–32 ('''Stop''')
|-
! 22
| '''North Korea?'''
| The {{w|Korean Peninsula}} was divided into two regions, the north of which would be known as {{w|North Korea}}, at the end of {{w|World War II}} in 1945. This resulted in the inconclusive {{w|Korean War}}.
| 1299- or 1922 (November 1–December 28) or 1991+
|
* Yes: 1945+
* No: 1945-
|
* Yes: 1991+ (Go to 69 in the Istanbul Division)
* No: 1299- or 1922 (November 1–December 28) (Go to 23)
|-
! 23
| '''Saint Trimble's Island'''
| Since [[Randall]] just made up this place, it is impossible that a map would include it, probably as a {{w|trap street|cartographer's fingerprint}} indicating plagiarism?
| 1299- or 1922 (November 1–December 28)
|
* No: inconclusive
* Yes: impossible
|
* No: 1299- or 1922 (November 1–December 28) (Go to 24)
* Yes: impossible ('''Stop''')
|-
! 24
| '''Is Jan Mayen part of the kingdom of Norway?'''
| Jurisdiction over the island of {{w|Jan Mayen}} was given to {{w|Norway}} around 1920, and it officially joined in 1930. '''Note:''' Strictly speaking, it should be almost impossible to answer "Yes" to this question – the Ottoman Empire existed until 1922, the Soviet Union existed from 1922 to 1991, and North Korea from 1945 onwards, so by answering "No" to the previous three questions, the user has ruled out the entire period during which Norway has officially owned Jan Mayen, and almost the entire period it controlled it barring an extremely slim sliver of time between November 1, 1922 to December 28, 1922. The following questions ignore the previous ones (East Germany only existed at the same time as the USSR, and Pakistan was founded later than North Korea, so both should have already been excluded) – essentially, the Jan Mayen question reboots the test.
| 1299- or 1922 (November 1–December 28)
|
* Not yet: prior to 1930
* What?: Not a political map
* Yes: 1930+
|
* Not yet: (Go to 2 in the Constantinople Division)
* What?: (Go to 25)
* Yes: (Go to 53 in the Istanbul Division)
|-
! colspan="6" | Not a Political Map Branch
|-
! 25
| '''Can you see the familiar continents?'''
| At this point, it is clear that the map in question is not a political map from any time. Therefore, the comic tries to determine whether it is a map of the Earth at all by asking if the continents are there.
|
|
* Yes: map of the Earth
* No: not a map of the Earth
|
* Yes: map of the Earth (Go to 26)
* No: not a map of the Earth (Go to 32)
|-
! colspan="6" | Topographical Map / Satellite Image Subbranch
|-
! 26
| '''This sounds like a physical map or satellite photo.'''
| A map of the Earth that does not label political regions must be a topological map; or, it can be a satellite image of the Earth.
| Map of the Earth
|
* Yes, that's it: topographical map or satellite image of the Earth
|
* Yes, that's it: topographical map or satellite image of the Earth (Go to 27)
|-
! 27
| '''Is Lake Chad missing?'''
| {{w|Lake Chad}} lost 75% of its area in the 1970s, becoming too small to be included in a map or picture of the Earth.
| Topographical map or satellite image of the Earth
|
* No: 1970s-
* Yes: 1970s+
|
* No: 1970s- (Go to 28)
* Yes: 1970s+ (Go to 31)
|-
! 28
| '''How far east do the American prairies reach?'''
| As settlers made their way west, the prairie land in the {{w|Great Plains}} region was steadily replaced by farmland and ranches. By the 1920s, most of the land had been converted to agricultural use, and the last of the prairie was largely obliterated by the {{w|Dust Bowl}}s in the 1930s. The dividing lines correspond roughly to the three types of prairie: {{w|tallgrass prairie}} grew between the Mississippi and Indiana, {{w|mixed grass prairie}} covered Nebraska and other states on the {{w|100th meridian west}}, and {{w|shortgrass prairie}} covered the remaining area east of the Rocky Mountains. There's some overlap in the dates, since it's fairly arbitrary at what you point you say the prairies stopped existing. There are still patches of prairie (covering about 1% of their former reach), but these are probably not visible in a satellite image.

| 1970s-
|
* Indiana: Before 1830
* The Mississippi: 1830–1880s
* Nebraska: 1860s–1910s
* What prairies?: 1920s+
|
* Indiana: Before 1830 ('''Stop''')
* The Mississippi: 1830–80s ('''Stop''')
* Nebraska: 1860s–1910s (Go to 29)
* What prairies?: 1920s–1970s (Go to 30)
|-
! 29
| '''Is there a big lake in the middle of Southern California? (created by mistake)'''
| This is {{w|Salton Sea}}, a previously dry lake bed accidentally flooded in 1905 while attempting to increase irrigation to the area from the Colorado River
| 1860s–1910s
|
* No: before 1905
* Yes: 1905+
|
* No: 1860s–1900s ('''Stop''')
* Yes: 1910s ('''Stop''')
|-
! 30
| '''Is there a big lake in the middle of Ghana? (created on purpose)'''
| {{w|Lake Volta}}, formed by the {{w|Akosombo Dam}} which was built in the 1960s
| 1920s–1970s
|
* No: before 1960s
* Yes: 1960s+
|
* No: 1920s–50s ('''Stop''')
* Yes: 1960s–70s ('''Stop''')
|-
! 31
| '''Is the Aral Sea missing?'''
| Shrinking since the 1930s, the {{w|Aral Sea}} would be too small to be on maps or images of the Earth by the 2000s.
| 1970s+
|
* No: 1990s-
* Yes: 2000s+
|
* No: 1970s-90s ('''Stop''')
* Yes: 2000s+ ('''Stop''')
|-
! colspan="6" | ''Topograpical Map / Satellite Image Subbranch ends''
|-
! colspan="6" | Fictional Map / Non-Map Subbranch
|-
! 32
| '''Rivers "Sirion" or "Anduin"?'''
| The rivers {{w|List of Middle-earth rivers#Sirion|Sirion}} and {{w|Anduin}} are part of {{w|Middle-earth|Middle-earth}}, the fictional setting of J.R.R. Tolkien's ''{{w|The Lord of the Rings}}'' books.
| Not a map of the Earth
|
* Yes: map of Middle-earth
* No: inconclusive
|
* Yes: map of Middle-earth (Go to 33)
* No: not a map of the Earth (Go to 37)
|-
! colspan="6" | Middle-earth Subbranch
|-
! 33
| '''Mordor?'''
| {{w|Mordor}} is the base of operations of {{w|Sauron}}, who settled there c. 1000 in the {{w|Second Age}} (which lasted for 3,441 years).
| Map of Middle-earth
|
* No: S.A. c. 1000-
* Yes: S.A. c. 1000+
|
* No: S.A. c. 1000- (Go to 34)
* Yes: S.A. c. 1000+ (Go to 35)
|-
! 34
| '''Beleriand?'''
| {{w|Beleriand}} was broken in the {{w|War of Wrath}} in the year 583 in the {{w|Years of the Sun}} in the {{w|First Age}} The First Age itself ran for 450 Valian Years and 590 Years of the Sun, adding up to between 5,023 and 65,390 Years of the Sun, depending on the conversion factor used ({{w|J. R. R. Tolkien}} has given several during the years). Note that Randall has apparently ignored the time before the First Age (4,550 Valian Years).
| S.A. c. 1000-
|
* Yes: Y.S. 583 First Age-
* No: Y.S. 583 First Age+
|
* Yes: Y.S. 583 First Age- (stated in comic as First Age) ('''Stop''')
* No: Y.S. 583 First Age–S.A. c. 1000 (stated in comic as early Second Age) ('''Stop''')
|-
! 35
| '''Númenor?'''
| The island of {{w|Númenor}} was raised from the sea at the start of the Second Age. It sank back into the sea in 3319 in the Second Age, as the formerly flat Earth was made into a globe.
| S.A. c. 1000+
|
* Yes: S.A. 1–3319
* No: First Age- or S.A. 3319+
|
* Yes: S.A. c. 1000–3319 (stated in comic as late Second Age) ('''Stop''')
* No: S.A. 3319+ (Go to 36)
|-
! 36
| '''The forest east of the Misty Mountains is...'''
| The forest {{w|Mirkwood}} was called Greenwood the Great from its discovery by the Elves c. V.Y. 4620 in the First Age to 1050 in the {{w|Third Age}} when the shadow of Sauron fell upon it and it was renamed. It was cleansed on 'March' 28, 3019 in the Third Age (which ran for 3,021 years), after which it is called the Wood of Greenleaves. Note that Randall ignores the Fifth Age and onwards; although Tolkien said that the present day is about the end of the Sixth Age or the beginning of the Seventh, nothing is written about these later Ages.
| S.A. 3319+
|
* Greenwood the Great: c. V.Y. 4620–T.A. 1050
* Mirkwood: T.A. 1050–3019–03–28
* The Wood of Greenleaves: T.A. 3019–03–28+
|
* Greenwood the Great: S.A. 3319–T.A. 1050 (stated in comic as early Third Age) ('''Stop''')
* Mirkwood: T.A. 1050–3019–03–28 (stated in comic as Late Third Age) ('''Stop''')
* The Wood of Greenleaves: T.A. 3019–03–28+ (stated in comic as Fourth Age) ('''Stop''')
|-
! colspan="6" | ''Middle-earth Subbranch ends''
|-
! 37
| '''Cair Paravel?'''
| {{w|Cair Paravel}} is the fictional castle where the Kings and Queens of Narnia rule in ''{{w|The Chronicles of Narnia}}''.
| Not a map of the Earth
|
* Yes: map of Narnia
* No: inconclusive
|
* Yes: map of Narnia (Go to 38)
* No: not a map of the Earth (Go to 42)
|-
! colspan="6" | Narnia Subbranch
|-
| colspan="6" | '''Note:''' This series contains seven books, whose original publication order does not match their chronological order. Specifically, ''The Magician's Nephew'' is earlier than ''The Lion, the Witch and the Wardrobe'', and ''The Horse and His Boy'' is between ''The Lion, the Witch and the Wardrobe'' and ''Prince Caspian''. Questions in this subbranch concern whether the place referenced can be found in the map contained in each book, not in which books' time the place exists. Therefore, places that exist in a book published later but is chronologically earlier than another book will not appear in the latter book, even if canonically they still exist in its time. Here are the seven books in their original publication order, which they will be referred to as.

# ''{{w|The Lion, the Witch and the Wardrobe}}''
# ''{{w|Prince Caspian}}''
# ''{{w|The Voyage of the Dawn Treader}}''
# ''{{w|The Silver Chair}}''
# ''{{w|The Horse and His Boy}}''
# ''{{w|The Magician's Nephew}}''
# ''{{w|The Last Battle}}''
|-
! 38
| '''Calormen?'''
| {{w|Calormen}} is a foreign empire in ''The Chronicles of Narnia''. While it was indirectly referenced in the first three books, it was not included in maps until the later books in the series.
| Map of Narnia
|
* No: 3-
* Yes: 4+
|
* No: 3- (Go to 39)
* Yes: 4+ (Go to 41)
|-
! 39
| '''Lotta islands?'''
| Refers to [http://www.charliewstarr.com/_Media/mapdawntreader.gif this map] from ''The Voyage of the Dawn Treader'', which focused on a ship voyage from Cair Paravel to the eastern edge of the world and back.
| 3-
|
* No: not 3
* Yes: 3
|
* No: 2- (Go to 40)
* Yes: 3 ('''Stop''')
|-
! 40
| '''Beruna'''
| Refers to [http://4.bp.blogspot.com/-54_2TDRUbHY/TpJHzFBzmiI/AAAAAAAALOA/q3RnPSvfdJ0/s1600/IMG.jpg the map] of Narnia originally published in Prince Caspian. During the time of ''The Lion, the Witch, and the Wardrobe'', the people of Beruna crossed the Great River via a ford, but it had been replaced by a bridge at the beginning of ''Prince Caspian''.
| 2-
|
* Ford: 1
* Bridge: 2
|
* Ford: 1 ('''Stop''')
* Bridge: 2 ('''Stop''')
|-
! 41
| '''Weird recursive heaven?'''
| Refers to ''The Last Battle'', where the protagonists find themselves in {{w|Aslan's Country}}, a glorious afterlife of which Narnia (along with Earth and presumably every other world) is only a shadowy reflection.
| 4+
|
* No: 6-
* Yes: 7
|
* No: 4–6 (stated in comic as one of the random later books) ('''Stop''')
* Yes: 7 ('''Stop''')
|-
! colspan="6" | ''Narnia Subbranch ends''
|-
! 42
| '''Mossflower?'''
| A forest from the ''{{w|Redwall}}'' book series. See also the comic [[370: Redwall]] and [[1722: Debugging]] that references the books.
| Not a map of the Earth
|
* Yes: ''Redwall''
* No: inconclusive
|
* Yes: ''Redwall'' ('''Stop''')
* No: not a map of the Earth (Go to 43)
|-
! 43
| '''Is the world on the back of a turtle?'''
| The comic fantasy book series ''{{w|Discworld}}'' is set on the fictional Discworld, a flat disc balanced on the backs of four elephants which in turn stand on the back of a giant turtle.
| Not a map of the Earth
|
* Yes: ''Discworld''
* No: inconclusive
|
* Yes: ''Discworld'' ('''Stop''')
* No: not a map of the Earth (Go to 44)
|-
! 44
| '''Are you ''sure'' this is a map?'''
| After incorrectly guessing several popular fictional world, it is fair to doubt whether the subject being identified here is a map at all.
| Not a map of the Earth
|
* Yes: a map ''for sure'', just not of the Earth
* No: not a map
|
* Yes: a map ''for sure'', just not of the Earth (Go to 45)
* No: not a map (Go to 47)
|-
! 45
| '''Did you make it yourself?'''
| At this point, the map can only be a homemade map of some other fictional world. (Although it might be a published map of another world, such as Pern, Oz or Mars but there isn't enough room for these options.)
| A map ''for sure'', just not of the Earth
|
* Yes: a homemade map
|
* Yes: a homemade map (Go to 46)
|-
! 46
| '''It's very nice.'''
| A stock response to "[It's] Very nice" is "Thanks, I made it myself". Since we have already done the "made it myself" part, we need to do the other parts too, albeit out of sequence.
| A homemade map
|
* Thank you!: something "very nice"
|
* Thank you!: a "very nice" homemade map ('''Stop''')
|-
! colspan="6" | Not a Map Subbranch
|-
! 47
| '''Is it trying to bite you?'''
| Now we are trying to guess something that is not a map. Makes sense to ask if it's something that bites, right? Right?
| Not a map
|
* No: doesn't bite
* Yes: bites
|
* No: doesn't bite and not a map (Go to 48)
* Yes: bites (Go to 49)
|-
! 48
| '''Is it larger than a breadbox?'''
| A typical, generic question asked Steve Allen on ''{{w|What's My Line?}}'', and is often used when playing {{w|Twenty Questions}}. However, instead of asking further questions to narrow down the choices, the comic just gives a guess for each response. The comic guesses a breadbox itself as something about the same size as a breadbox.
| Doesn't bite and not a map
|
* Yes: larger than a breadbox
* No: smaller than a breadbox
* About the same: about the same size as a breadbox
|
* Yes: larger than a breadbox, doesn't bite, and not a map (comic guesses a {{w|tuba}}) ('''Stop''')
* No: smaller than a breadbox, doesn't bite, and not a map (comic guesses a {{w|stapler}}) ('''Stop''')
* About the same: about the same size as a breadbox, doesn't bite, and not a map (comic guesses a {{w|breadbox}}) ('''Stop''')
|-
! 49
| '''If you let it go, what does it do?'''
|This assumes that you are holding the biting object. While holding it, the object may have already bitten you, and the consequences of this would most likely be painful.
| Bites
|
* Hisses and runs away: hisses and runs away if let go
* Screeches and flaps around the room breaking things: screeches and flaps around the room breaking things if let go
|
* Hisses and runs away: bites, and hisses and runs away if let go (comic guesses a {{w|cat}}) ('''Stop''')
* Screeches and flaps around the room breaking things: bites, and screeches and flaps around the room breaking things if let go (comic guesses a {{w|seagull}}) ('''Stop''' (however, see 50))
|-
! 50
| '''Does the screeching chill your blood and herald death?'''
| ''Note: Title text question.''
| Bites, and screeches and flaps around the room breaking things if let go
|
* Yes: Screeching chills your blood and heralds death
* No: Screeching does not chill your blood and herald death; or does not screech
|
* Yes: bites; screeches and flaps around the room breaking things if let go; screeching chills your blood and heralds death (title text guesses a {{w|banshee}}) ('''Stop''')
* No: bites; screeches and flaps around the room breaking things if let go; screeching does not chill your blood and herald death (title text guesses a seagull) ('''Stop''')
|-
! colspan="6" | Istanbul Division
|-
! 51
| '''Does the Soviet Union exist?'''
| The {{w|Soviet Union}}, officially the Union of Soviet Socialist Republics, existed from 1922 to 1991. After 1991, the Soviet Union split up into Russia and 15 other post-Soviet states.
|1928+
|
* Yes: 1928–1991
* No: 1991+
|
* Yes: 1928–1991 (Go to 52)
* No: 1991+ (Go to 69)
|-
! colspan="6" | West Africa branch
|-
! 52
| '''Is most of West Africa a giant French blob?'''
| Before 1960, most of West Africa consisted of a number of French colonies united under {{w|French West Africa}}.
|1928–1991
|
* Yes: 1928–1960
* No: 1960–1991
|
* Yes: 1928–1960 (Go to 53)
* No: 1960–1991 (Go to 60)
|-
! 53
| '''Pakistan?'''
| {{w|Pakistan}} was officially recognized as its own country in 1947, when {{w|British India}} was granted independence and {{w|Partition of India|partitioned into two nations}}. Pakistan was created at the request of Muslims who wished for a Muslim majority state.
|1928–1960
|
* No: 1928–1947
* Yes: 1947–1960
|
* No: 1928–1947 (Go to 54)
* Yes: 1948–1960 (Go to 56)
|-
! 54
| '''How many Germanys are there?'''
| During WWII, the {{w|Nazi Party}} invaded a large swath of Europe, which would make {{w|Nazi Germany}} huge on the map during that period. After the war, it split up into two countries — {{w|West Germany}} which was part of {{w|NATO}}, and {{w|East Germany}} which was part of the {{w|Warsaw Pact}}. Note that by modern standards, pre-WWII Germany was also quite huge, since at that point Germany included {{w|Prussia}} which contained much of modern Poland as well as Russian {{w|Kaliningrad}}, and in 1938 Germany took control of Austria in the {{w|Anschluss}} and the {{w|Sudetenland}} in {{w|Czechoslovakia}} following the {{w|Munich Agreement}}. Not all maps produced during WWII used the Nazi borders, since the Allies refused to recognize German occupation and supported the {{w|government-in-exile|governments-in-exile}}.
|1928–1947
|
* One: 1928–1940
* One, but it's ''huge'': 1941–1945
* Two: 1946–1947
|
* One: 1928–1940 (Go to 55)
* One, but it's ''huge'': 1941–1945 ('''Stop''')
* Two: 1946–1947 ('''Stop''')
|-
! 55
| '''Persia or Iran?'''
| In 1935 the {{w|Iran|Iranian}} Government requested that westerners call it by the name its own people had used for hundreds of years, rather than after a tribe within it that gained prominence 2500 years earlier. The interval from 1928 to 1930 is dropped from this branch, but it would fall under {{w|Persia}}.
|1928–1940
|
* Persia: 1930–1934
* Iran: 1935–1940
|
* Persia: 1930–1934 ('''Stop''')
* Iran: 1935–1940 ('''Stop''')
|-
! 56
| '''Cambodia?'''
| {{w|Cambodia}} (or Kampuchea) declared independence from France in 1953.
|1948–1960
|
* No: 1948–1953
* Yes: 1953–1960
|
* No: 1948–1953 (Go to 57)
* Yes: 1953–1960 (Go to 59)
|-
! 57
| '''Eritrea is a part of...'''
| {{w|Eritrea}} declared independence from Italy in 1952, joining {{w|Ethiopia}} to create the {{w|Federation of Ethiopia and Eritrea}}.
|1947–1953
|
* Italy: 1948–1952
* Ethiopia: 1952–1953
|
* Italy: 1948–1952 (Go to 58)
* Ethiopia: 1952–1953 ('''Stop''')
|-
! 58
| '''Canada is...'''
| In 1949, the {{w|Dominion of Newfoundland}} became a part of {{w|Canada}}. Before that, it was marked as its own country on the map, so maps from 1948 and before would have Canada "missing a piece" on its east coast as compared to how it looks today.
|1947–1952
|
* Missing a piece: 1948
* Fine: 1949–1952
|
* Missing a piece: 1948 ('''Stop''')
* Fine: 1949–1952 (Go to 63)
|-
! 59
| '''The United Arab Republic?'''
| The {{w|The United Arab Republic}} was a short-lived political union between {{w|Egypt}} and {{w|Syria}}. The union began in 1958 and existed until 1961 (although Egypt continued to call itself the United Arab Republic for several years after Syria left the union).
|1953–1960
|
* No: 1953–1958
* Yes: 1958–1960
|
* No: 1953–58 (stated in comic as 1954–57 – a discrepancy) ('''Stop''')
* Yes: 1958–60 ('''Stop''')
|-
! 60
| '''How many Vietnams are there?'''
| On April 30, 1975, forces from {{w|North Vietnam}} captured {{w|Saigon}} (now known as {{w|Ho Chi Minh City}}), and reunified the country, in an event known as {{w|Reunification Day}}, which marked the end of the {{w|Vietnam War}}. Maps before this date would have "North Vietnam" and "{{w|South Vietnam}}" on them rather than a single "{{w|Vietnam}}".
|1960–1991
|
* Two: 1960–1975
* One: 1975–1991
|
* Two: 1960–1975 (Go to 61)
* One: 1975–1991 (Go to 64)
|-
! 61
| '''Bangladesh?'''
| {{w|Bangladesh}} (formerly {{w|East Pakistan}}) declared independence from {{w|Pakistan}} in 1972, as they had different languages, cultures, and the Bengalis felt their country was being run from West Pakistan without their input. The {{w|Bangladesh Liberation War|resulting war}} lasted just over 8 months and ended in Indian intervention.
|1960–1975
|
* No: 1960–1972
* Yes: 1972–1975
|
* No: 1960–1972 (Go to 62)
* Yes: 1972–1975 ('''Stop''')
|-
! 62
| '''Is the area south of Lake Victoria...'''
| The area south of {{w|Lake Victoria}} was called {{w|Tanganyika}}, and it declared independence from the United Kingdom to form its own country in 1961, and unified with {{w|Zanzibar}} to create {{w|Tanzania}} in 1964.
|1960–1972
|
* British: 1960–1961
* Tanganyika: 1961–1964
* Tanzania: 1965–1971
|
* British: 1960–1961 (Go to 63)
* Tanganyika: 1961–1964 ('''Stop''')
* Tanzania: 1965–1972 (stated in comic as 1964–1971 – a discrepancy) ('''Stop''')
|-
! 63
| '''The town on I-25 between Albuquerque and El Paso is... '''
| {{w|Interstate 25 in New Mexico|I-25}} didn't exist for any of the years listed for this item, since the Interstate Highway System wasn't launched until 1956. The highway designation on maps printed during the years listed was {{w|U.S. Route 85#New Mexico|US-85}}, and it was first replaced by I-25 in 1970–1990. The town changed its name from Hot Springs to "{{w|Truth or Consequences, New Mexico|Truth or Consequences}}" in 1950, although locals say that it provides more of the latter than of the former. Still the question would have made sense (although it should have been US-85) had it not been for the fact that the whole question is for the wrong time period, as the search tree leading to a British Tanganyika is only the period 1960–1961. Actually this item seems like it should actually follow from the "Fine" option of "Canada is.." from 1949 to 1952 as it is in the same time period.
|1960–1961
|
* Hot Springs: 1916–49
* Truth or Consequences: 1950+
|
* Hot Springs: 1948–49 ('''Stop''') (a discrepancy as this is for the period 1960–61)
* Truth or Consequences: 1950–52 ('''Stop''') (a discrepancy as this is for the period 1960–61)
|-
! 64
| '''Jimmy Carter is...'''
| On April 20, 1979, {{w|Jimmy Carter}} was "{{w|Jimmy Carter rabbit incident|attacked}}" by a swamp rabbit, a fact referenced in [[204|204: America]]. This fact would not normally be referenced on a map, however, and is simply a joke entry that leads to the next question.
|1975–1991
|
* Being attacked by a giant swimming rabbit: April 20, 1979
* Fine: 1975–1991
|
* Being attacked by a giant swimming rabbit: April 20, 1979 ('''Stop''')
* Fine: 1975–1991 (Go to 65)
|-
! 65
| '''The Sinai is part of what country?'''
| In 1979, {{w|Israel}} signed a peace treaty in which it would gradually retreat from the entire {{w|Sinai Peninsula}}, handing that area to {{w|Egypt}}. This happened over a period of three years, completing in 1982.
|1975–1991
|
* Israel: 1976–1979
* Mostly Israel: 1980
* Mostly Egypt: 1981
* Egypt: 1982–1991
|
* Israel: 1976–1979 (missing 1975?) ('''Stop''')
* Mostly Israel: 1980 ('''Stop''')
* Mostly Egypt: 1981 ('''Stop''')
* Egypt: 1982–1991 (Go to 66)
|-
! 66
| '''What's the capital of Micronesia?'''
| The {{w|Federated States of Micronesia}} are a group of small islands in the Pacific Ocean. Their capital was {{w|Kolonia}} until 1989, when it changed to {{w|Palikir}}, on the same island.
|1982–1991
|
* Kolonia: 1982–1988
* Palikir: 1989–1991
|
* Kolonia: 1982–1988 (Go to 67)
* Palikir: 1989–1991 (Go to 68)
|-
! 67
| '''Republic of the Upper Volta or Burkina Faso?'''
| {{w|Burkina Faso}} was named the {{w|Republic of the Upper Volta}} until 1984, when the president Thomas Sankara decided to rename it to promote a sense of unity in the nation and in an anti-colonial statement.
|1982–1988
|
* Upper Volta: 1982–1984
* Burkina Faso: 1985–1988
|
* Upper Volta: 1982–1984 ('''Stop''')
* Burkina Faso: 1985–1988 ('''Stop''')
|-
! 68
| '''(Number of Yemens) + (Number of Germanys) = ?'''
| In 1990, two unification events took place: {{w|Yemeni unification}} on May 22, and {{w|German reunification}} on October 3. Before these events, in early 1990, there would have been four Yemens and Germanys total. In mid-1990, when only the Yemeni unification had taken place, there would be one Yemen and two Germanys, for a total of three. and in late 1990, after both events took place, there would be one of each for a total of two.
|1989–1991
|
* Four: 1989–early 1990
* Three: mid-1990
* Two: late 1990–1991
|
* Four: 1989–early 1990 ('''Stop''')
* Three: mid-1990 ('''Stop''')
* Two: late 1990–1991 ('''Stop''')
|-
! colspan="6" | Post-Soviet branch
|-
! 69
| '''Zaire? or: "Hong Kong (UK)"'''
| Zaire was one of a series of names for what is today called the {{w|Democratic Republic of the Congo}}. In 1996 a (successful) revolt began to oust the reigning government from power. As part of this revolution, the country was renamed. The original name change away from 'Congo' was part of an 'Africanisation' naming campaign, although 'Congo' is in origin an authentic African name for the river that set the boundaries of the nation.

{{w|Hong Kong}} was taken by the British in 1843 at the end of the {{w|First Opium War}}, and an additional area (the {{w|New Territories}}) were leased from China in 1898 on a 99-year lease. When the lease expired in 1997, {{w|Transfer of sovereignty over Hong Kong|the whole of Hong Kong was returned to China}}.
|1991+
|
* Yes: 1992–1996
* No: 1996+
|
* Yes: 1992–1996 ('''Stop''')
* No: 1996+ (Go to 70)
|-
! 70
| '''Serbia and Montenegro are...'''
| The Union of {{w|Serbia and Montenegro}} was a remnant of {{w|Yugoslavia}}. {{w|Montenegro}} voted to become its own country in 2006. '''Note:''' For much of the prior date range, "Serbia and Montenegro" did not appear on maps–the states still went by the name Yugoslavia. {{w|Serbia and Montenegro#State union|Serbia and Montenegro only came into existence in 2003}}.
|1996+
|
* One country: 1996–2006
* Two countries: 2007+
|
* One country: 1996–2006 (Go to 71)
* Two countries: 2007+ (Go to 72)
|-
! 71
| '''East Timor?'''
| {{w|East Timor}} (also known as Timor-Leste) is a nation north of Australia and south east of {{w|Indonesia}}. During the Dutch colonization of Indonesia, East Timor remained in Portuguese hands. While {{w|Indonesian occupation of East Timor|occupied and annexed by Indonesia}} in 1976, East Timor retained its own culture and voted for independence, then had a nasty militia action that required UN peacekeeping action, and finally become independent in 2002.
|1996–2006
|
* No: 1997–2001
* Yes: 2002–2006
|
* No: 1997–2001 ('''Stop''')
* Yes: 2002–2006 ('''Stop''')
|-
! 72
| '''How many Sudans are there?'''
| In 2011, after a long history of violence between the two portions of the country (which can be characterized as Islam vs. Christianity and traditional religions), {{w|South Sudan}} became independent from {{w|Sudan}}.
|2006+
|
* One: 2007–2011
* Two: 2011+
|
* One: 2007–2011 ('''Stop''')
* Two: 2011+ (Go to 73)
|-
! 73
| '''Is Crimea disputed?'''
| In 2014, a {{w|Euromaidan|revolution}} ousted the current Ukrainian president. {{w|Crimea}} had its own civil unrest, and Russian troops exploited the unrest to launch {{w|Annexation of Crimea by the Russian Federation|an invasion}}. A referendum, where many nations, including all member states of the EU, the USA, and Canada, disputed the democratic legitimacy of the referendum, was held during this and ostensibly decided in favor of Russian annexation. Depending on where you get your maps, Crimea might not be marked as disputed–[http://www.npr.org/sections/thetwo-way/2014/04/12/302337754/google-maps-displays-crimean-border-differently-in-russia-u-s Google Maps Ukraine shows it as solely Ukrainian while Google Maps Russia shows it as Russian].
|2011+
|
* Yes: 2014+
* No: 2012–2013
|
* Yes: 2014+ (Go to 74)
* No: 2012–2013 ('''Stop''')
|-
! 74
| '''"Colorado" or "Danger—Radioactive Exclusion Zone—Avoid"?'''
| This entry and the one below it are now referring to hypothetical future events: specifically, a huge radioactivity event in {{w|Colorado}} that takes place some time in 2022. Colorado has a previous history of radioactive contamination–it was home to uranium mines, nuclear tests (including {{w|Project Rulison}}, an attempt to use nuclear bombs to drill for natural gas that ended up making the gas radioactive) and the controversial {{w|Rocky Flats Plant}}, a nuclear weapons manufacturing facility that suffered {{w|Radioactive contamination from the Rocky Flats Plant|several fires and leaks}} and was ultimately raided and shut down by the FBI. None of these has yet caused spiders to mutate.{{Citation needed}}
|2014+
|
* Colorado: 2014–2021
* Danger: 2022+
|
* Colorado: 2014–2021 ('''Stop''')
* Danger: 2022+ (Go to 75)
|-
! 75
| '''Does the warning mention the spiders?'''
| Presumably some time in 2023, the radioactive exclusion zone also becomes infested with mutant spiders.
|2022+
|
* No: 2022
* Yes: 2023 or later
|
* No: 2022 ('''Stop''')
* Yes: 2023 or later ('''Stop''')
|}

==Transcript==
{{incomplete transcript|No layout with that many indents, just describe the image.}}
:[A very complicated flow chart, which can only be read in detail using the larger image now shown at the top of this page. This transcript uses the large version, where there is no problem reading all entries.]

:[At the top of the chart there is a large caption, with a smaller caption below:]
:<big>Guide to figuring out the age of an undated world map</big>
:(Assuming it's complete, labeled in English, and detailed enough)

:[Below the starting bracket in the small caption is a start box. It has rounded corners and it is gray with white text. From this box there is a gray line to a box consisting of a black frame with rounded corners. In these kind of boxes there are questions regarding the map in black text. Below this box there are three gray boxes like the start box, superimposed over the bottom frame. In these boxes are the possible answers to the question in the frame above. From each of these options there is a gray line going to similar black framed boxes with other questions either below, or to either side. There can either be two, three or four gray boxes, two the most common. Only at the very bottom of the central branch where it turns out it was a home made map, are there two frames with only one gray question box each. This trend continues over this entire large image. When reaching the end of a branch in the flow chart, there is no line away from one, more or all of the gray boxes for a black frame. When this happens a year range or a guess at what the map shows, or what it is (if it turns out to not be a map) is written below the gray box in gray text. Of the text in the gray boxes are Yes/No, but not always. There are 74 boxes with black frames with 158 gray boxes and 78 endpoints with text below the gray box and one end point without text below (the one with the home made map).]

:Start
::Istanbul or Constantinople?
:::Constantinople
::::Do any of these exist? 
::::*Independent Canada
::::*US Territory of Alaska
::::*Tokyo
:::::No
::::::The Holy Roman Empire?
:::::::Yes
::::::::1805 or earlier (before this point, the modern idea of a complete political map of the world gets hard to apply.)
:::::::No
::::::::The United States?
:::::::::No
::::::::::How sure are you that this map is in english?
:::::::::Yes
::::::::::Texas is...
:::::::::::Part of Mexico
::::::::::::Florida is part of...
:::::::::::::Spain
::::::::::::::Paraguay?
:::::::::::::::No 1806–10
:::::::::::::::Yes 1811–17
:::::::::::::The US
::::::::::::::Venezuela and/or ecuador?
:::::::::::::::No 1818–29
:::::::::::::::Yes 1830–33
:::::::::::Independent 1834–45
:::::::::::Part of the US
::::::::::::Does Russia border the Sea of Japan?
:::::::::::::No
::::::::::::::The US's southern border looks...
:::::::::::::::Weird 1846–53
:::::::::::::::Normal 1854–56
:::::::::::::Yes 1858–67
:::::Yes
::::::South Africa?
:::::::No
::::::::Rhodesia?
:::::::::No
::::::::::Is Bolivia landlocked?
:::::::::::No
::::::::::::"Buda" and "Pest" or "Budapest"?
:::::::::::::Buda and Pest 1868–72
:::::::::::::Budapest 1873–83
:::::::::::Yes 1884–95
:::::::::Yes
::::::::::Is Norway part of Sweden?
:::::::::::Yes 1896–1905
:::::::::::No 1906–09
:::::::Yes
::::::::Austria-Hungary?
:::::::::Yes
::::::::::Albania?
:::::::::::No 1910–12
:::::::::::Yes 1913–18
:::::::::No
::::::::::Leningrad?
:::::::::::No 1919–23
:::::::::::Yes 1924–29
:::Neither
::::Does the Ottoman Empire exist?
:::::Yes [[#canada-alaska-tokyo]]
:::::No
::::::The Soviet Union?
:::::::Yes
::::::::Saudi Arabia?
:::::::::Yes
::::::::::Is most of West Africa a giant french blob?
:::::::::::Yes
::::::::::::Pakistan?
:::::::::::::No
::::::::::::::How many Germanys are there?
:::::::::::::::One
::::::::::::::::Persia or Iran?
:::::::::::::::::Persia 1930–34
:::::::::::::::::Iran 1935–40
:::::::::::::::One, but it's ''huge'' 1941–45
:::::::::::::::Two 1946–47
:::::::::::::Yes
::::::::::::::Cambodia?
:::::::::::::::No
::::::::::::::::Eritrea is part of...
:::::::::::::::::Italy
::::::::::::::::::Canada is...
:::::::::::::::::::Missing a piece 1948
:::::::::::::::::::Fine 1949–52
:::::::::::::::::Ethiopia 1952–53
:::::::::::::::Yes
::::::::::::::::The United Arab Republic?
:::::::::::::::::No 1954–57
:::::::::::::::::Yes 1958–60
:::::::::::No
::::::::::::How many Vietnams are there?
:::::::::::::Two
::::::::::::::Bangladesh?
:::::::::::::::No
::::::::::::::::Is the area south of Lake Victoria...
:::::::::::::::::British
::::::::::::::::::The town on I-25 between Albuquerque and El Paso is...
:::::::::::::::::::Hot Springs 1948–49
:::::::::::::::::::Truth or Consequences 1950–52
:::::::::::::::::Tanganyika 1961–64
:::::::::::::::::Tanzania 1965–71
:::::::::::::::Yes 1972–75
:::::::::::::One
::::::::::::::Jimmy Carter is...
:::::::::::::::Being attacked by a giant swimming rabbit April 20, 1979
:::::::::::::::Fine
::::::::::::::::The Sinai is part of what country?
:::::::::::::::::Israel 1976–79
:::::::::::::::::Mostly Israel 1980
:::::::::::::::::Mostly Egypt 1981
:::::::::::::::::Egypt
::::::::::::::::::What's the capital of Micronesia?
:::::::::::::::::::Kolonia
::::::::::::::::::::Republic of the Upper Volta or Burkina Faso?
:::::::::::::::::::::Upper Volta 1982–84
:::::::::::::::::::::Burkina Faso 1985–88
:::::::::::::::::::Palikir
::::::::::::::::::::(number of Yemens) + (number of Germanys) = ?
:::::::::::::::::::::Four 1989-early 1990
:::::::::::::::::::::Three mid-1990
:::::::::::::::::::::Two late 1990–1991
:::::::::No 1922–1932
:::::::No
::::::::North Korea?
:::::::::Yes
::::::::::Zaire? or: "Hong Kong (UK)"
:::::::::::Yes 1992–96
:::::::::::No
::::::::::::Serbia/Montenegro are...
:::::::::::::One country
::::::::::::::East Timor?
:::::::::::::::No 1997–2001
:::::::::::::::Yes 2002–06
:::::::::::::Two countries
::::::::::::::How many Sudans are there?
:::::::::::::::One 2007–11
:::::::::::::::Two
::::::::::::::::Is Crimea disputed?
:::::::::::::::::Yes
::::::::::::::::::"Colorado" or "Danger—Radioactive Exclusion Zone—Avoid"?
:::::::::::::::::::Colorado 2014–21
:::::::::::::::::::Danger
::::::::::::::::::::Does the warning mention the spiders?
:::::::::::::::::::::No 2022
:::::::::::::::::::::Yes 2023 or later
:::::::::::::::::No 2012–13
:::::::::No
::::::::::Saint Trimble's Island
:::::::::::No
::::::::::::Is Jan Mayen part of the Kingdom of Norway?
:::::::::::::Not yet
::::::::::::::[[#canada-alaska-tokyo]]
:::::::::::::What?
::::::::::::::Can you see the familiar continents?
:::::::::::::::Yes
::::::::::::::::This sounds like a physical map or satellite photo.
:::::::::::::::::Yes, that's it
::::::::::::::::::Is Lake Chad missing?
:::::::::::::::::::No
::::::::::::::::::::How far east do the American Prairies reach?
:::::::::::::::::::::Indiana before 1830
:::::::::::::::::::::The Mississippi 1830s-80s
:::::::::::::::::::::Nebraska
::::::::::::::::::::::Is there a big lake in the middle of Southern California? (created by mistake)
:::::::::::::::::::::::No 1860s-1900s
:::::::::::::::::::::::Yes 1910s
:::::::::::::::::::::What prairies?
::::::::::::::::::::::Is there a big lake in the middle of Ghana? (created on purpose)
:::::::::::::::::::::::No 1920s-50s
:::::::::::::::::::::::Yes 1960s-70s
:::::::::::::::::::Yes
::::::::::::::::::::Is the Aral Sea missing?
:::::::::::::::::::::No 1970s-90s
:::::::::::::::::::::Yes 2000s+
:::::::::::::::No
::::::::::::::::Rivers "Sirion" or "Anduin"?
:::::::::::::::::Yes
::::::::::::::::::Mordor?
:::::::::::::::::::No
::::::::::::::::::::Beleriand?
:::::::::::::::::::::Yes First Age
:::::::::::::::::::::No Early Second Age
:::::::::::::::::::Yes
::::::::::::::::::::Númenor?
:::::::::::::::::::::Yes Late Second Age
:::::::::::::::::::::No
::::::::::::::::::::::The forest east of the Misty Mountains is...
:::::::::::::::::::::::Greenwood Early Third Age
:::::::::::::::::::::::Mirkwood Late Third Age
:::::::::::::::::::::::The Wood of Greenleaves Fourth Age
:::::::::::::::::No
::::::::::::::::::Cair Paravel?
:::::::::::::::::::Yes
::::::::::::::::::::Calormen?
:::::::::::::::::::::No
::::::::::::::::::::::Lotta Islands?
:::::::::::::::::::::::No
::::::::::::::::::::::::Beruna
:::::::::::::::::::::::::Ford The Lion, the Witch and the Wardrobe
:::::::::::::::::::::::::Bridge Prince Caspian
:::::::::::::::::::::::Yes Dawn Treader
:::::::::::::::::::::Yes
::::::::::::::::::::::Weird recursive heaven?
:::::::::::::::::::::::No One of the random later books
:::::::::::::::::::::::Yes The Last Battle
:::::::::::::::::::No
::::::::::::::::::::Mossflower?
:::::::::::::::::::::Yes
::::::::::::::::::::::Redwall
:::::::::::::::::::::No
::::::::::::::::::::::Is the world on the back of a turtle?
:::::::::::::::::::::::Yes Discworld
:::::::::::::::::::::::No
::::::::::::::::::::::::Are you ''sure'' this is a map?
:::::::::::::::::::::::::Yes
::::::::::::::::::::::::::Did you make it yourself?
:::::::::::::::::::::::::::Yes
::::::::::::::::::::::::::::It's very nice.
:::::::::::::::::::::::::::::Thank you!
:::::::::::::::::::::::::No
::::::::::::::::::::::::::Is it trying to bite you?
:::::::::::::::::::::::::::No
::::::::::::::::::::::::::::Is it larger than a breadbox?
:::::::::::::::::::::::::::::Yes tuba
:::::::::::::::::::::::::::::No stapler
:::::::::::::::::::::::::::::About the same breadbox
:::::::::::::::::::::::::::Yes
::::::::::::::::::::::::::::If you let it go, what does it do?
:::::::::::::::::::::::::::::Hisses and runs away cat
:::::::::::::::::::::::::::::Screeches and flaps around the room breaking things seagull
:::::::::::::Yes
::::::::::::::[[#pakistan]]
:::::::::::Yes No, I made that one up.
:::Istanbul
::::Does the Soviet Union exist?
:::::Yes
::::::[[#west-africa-french-blob]]
:::::No
::::::[[#zaire]]

==Trivia==
*There are some errors and several discrepancies in the comic regarding how year ranges are given.
**The largest error seems to be a real mistake, rather than just not being precise.
***It regards the entry ''The town on I-25 between Albuquerque and El Paso is...'' that gives a year range of 1948–1952, but to get to this entry, the previous answer ''British'' fixes the time to 1960–1961. Also, I-25 was built in 1970–1990 through New Mexico; see the [[#Table|table]] above for more info.

*A map of Earth in the distant past (eg. Pangaea), another celestial body (eg. Mars) or fictional realm aside from Middle Earth, Narnia, Redwall, or Discworld will be misidentified as a stapler. This may impede the chart's use when identifying maps found in many fantasy novels.{{Citation needed}}

{{comic discussion}}
[[Category:Large drawings]]
[[Category:Flowcharts]]
[[Category:Maps]]
[[Category:Time]]
[[Category:Geography]]
[[Category:Comics featuring politicians]]
[[Category:Animals]]
[[Category:LOTR]]
[[Category:Fiction]]
[[Category:Spiders]]
[[Category:Chronicles of Narnia]]

2097: Thor Tools

2019-01-11T18:12:50Z

M: wrote expliantion of the comic and "linked" it to the title text and small transcript edits

[[[[Link title]]]]{{comic
| number = 2097
| date = January 11, 2019
| title = Thor Tools
| image = thor_tools.png
| titletext = CORRECTION: After careful evaluation, we have determined that the axis label on this chart was printed backward.
}}

==Explanation==
{{incomplete|Created by Thor's Caliper. Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.}}

This comic is stating varies hand tools in order of utility and "weaponness" besides thor's actual hammer which is magical. Hammers are heavy, blunt and do large amount of damage to a mortal apponent. Where as a plane is sharp but only in one spot and will only inflict surface wounds.

Some of these tools require power which would reqiure Thor to stay near an outlet or have a power source.(Circular saw, Jackhammer, Digital Caliper(batteries), Dremel). Thor will also need compressed air for some of these tools which would allow Thor only so many shot be for reloading the air tank at an outlet(Nail gun). Some tools also require nails or staples to function as a weapon (Nail gun,Staple gun).

Although in the titletext Munroe does say the the order should be reversed.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
[A timeline labeled "Hand tools Thor could have ended up with" with "Best" on the left and "Worst" on the right.]

[Points on the line are labeled "Hammer", "Axe", "Claw hammer", "Circular saw", "Jackhammer", "Shovel", "Socket wrench", "Bolt cutters", "Hacksaw", "Nail gun", "Staple gun", "Coping saw", "Screwdriver (flat)", "Ball-peen hammer", "Screwdriver (phillips)", "Awl", "Digital Caliper", "Dremel", "Plane"]

[A figure wearing a winged helmet is seen preparing to use: a Circular saw, a Socket wrench, a Staple gun, and a Dremel.]

{{comic discussion}}