User contributions
- 15:00, 31 May 2017 (diff | hist) . . (+172) . . Talk:1844: Voting Systems (→Consolidate Information: new section)
- 14:58, 31 May 2017 (diff | hist) . . (+1,636) . . 1844: Voting Systems (→Explanation)
- 15:44, 17 February 2017 (diff | hist) . . (+140) . . 1800: Chess Notation (→Explanation)