Talk:540: Base System
Panels 3 & 4 refer to yet other sports. A 50-yard line is a significant location in American football; a ten-pin is a specific pin location in bowling; and a red flag is a warning given in non-American football (what Amercians call soccer).
The arrow indicating Napoleon's forces may be a reference to the classic map/diagram by Charles Joseph Minard, which shows not only the path Napoleon's army took on its Russian invasion, but also several other relevant categories of facts about that campaign, thus folding several conceptual dimensions into two. (sorry, should have signed this.) 22.214.171.124 07:44, 6 November 2013 (UTC)