13 June 2017

• 17:1717:17, 13 June 2017 diff hist +880 1988 USAMO Problems/Problem 2 →Solution current

23 February 2017

• 15:1115:11, 23 February 2017 diff hist +1,116 1997 AIME Problems/Problem 14 →Solution

9 June 2016

• 23:0823:08, 9 June 2016 diff hist +570 1997 AIME Problems/Problem 9 No edit summary

13 May 2016

• 20:5520:55, 13 May 2016 diff hist +251 1950 AHSME Problems/Problem 20 →Solution

10 March 2016

• 23:4823:48, 10 March 2016 diff hist −922 2005 AIME II Problems/Problem 9 No edit summary
• 19:0719:07, 10 March 2016 diff hist +861 2005 AIME II Problems/Problem 9 →Solution

1 February 2016

• 14:2914:29, 1 February 2016 diff hist +170 2015 AMC 10A Problems/Problem 20 →Solution
• 14:2814:28, 1 February 2016 diff hist +3 2015 AMC 10A Problems/Problem 20 it's not a square so

25 January 2016

• 22:2722:27, 25 January 2016 diff hist +1,342 2015 AMC 10B Problems/Problem 21 No edit summary

22 January 2016

• 18:0818:08, 22 January 2016 diff hist +496 2015 AMC 10A Problems/Problem 17 Added a solution

13 January 2016

• 21:0021:00, 13 January 2016 diff hist +1,215 2006 AIME I Problems/Problem 7 Added a solution

9 January 2016

• 22:2022:20, 9 January 2016 diff hist +15 AoPS Past Contests →2014

25 December 2015

• 19:4019:40, 25 December 2015 diff hist −1 2007 AMC 10B Problems/Problem 20 600 \neq 3600

24 December 2015

• 14:1014:10, 24 December 2015 diff hist +394 Logarithm Added two introductory log. problems

3 December 2015

• 17:4617:46, 3 December 2015 diff hist 0 m 2008 AMC 12A Problems/Problem 22 fixed a typo, it said "2004 amc10a" rather than "2008 amc10a"