28 March 2015

• 14:4114:41, 28 March 2015 diff hist 0 2002 USAMO Problems →Problem 5
• 14:3914:39, 28 March 2015 diff hist 0 2002 USAMO Problems/Problem 5 Replaced n_1*n_(i+1) with n_i*n_(i+1) (http://www.maa.org/math-competitions/usamo-2002-solutions) current

28 March 2012

• 14:5414:54, 28 March 2012 diff hist +1 2012 AMC 10B Problems →Problem 13

14 December 2011

• 15:2615:26, 14 December 2011 diff hist −23 2009 AMC 12A Problems/Problem 11 →Solution 1

15 October 2011

• 21:0321:03, 15 October 2011 diff hist +6 1989 AIME Problems/Problem 6 →Solution

18 July 2011

• 18:5218:52, 18 July 2011 diff hist 0 2003 AIME II Problems/Problem 13 →Solution 1

15 July 2011

• 19:5519:55, 15 July 2011 diff hist −14 1998 AIME Problems/Problem 9 →Problem
• 19:0019:00, 15 July 2011 diff hist 0 2003 AIME II Problems/Problem 13 →Solution 1

1 July 2011

• 18:2018:20, 1 July 2011 diff hist +8 AoPS Wiki talk:Problem of the Day/July 1, 2011 →Solution 2 current

14 June 2011

• 19:4419:44, 14 June 2011 diff hist +873 AoPS Wiki talk:Problem of the Day/June 15, 2011 No edit summary

24 April 2011

• 17:4917:49, 24 April 2011 diff hist −2 2011 AMC 10B Problems/Problem 22 →Problem