User contributions
- 21:30, 22 May 2015 (diff | hist) . . (-523) . . 1522: Astronomy (→Explanation: Quite a stretch. Not suggested by the material.)
- 23:38, 14 January 2015 (diff | hist) . . (+202) . . 902: Darmok and Jalad (→Explanation)
- 00:49, 5 January 2015 (diff | hist) . . (+1) . . 10: Pi Equals (→Explanation)