Recent contributions:

1 Apr 2011

• Made this change to the answer of How tall was Franklin D Roosevelt
  Franklin D. Roosevelt  •   1 Apr 2011 15:46
• Wrote the first answer to What was franklin d roosevelt trained to do
  US Presidents | Franklin D. Roosevelt  •   1 Apr 2011 15:43

24 Jan 2011

• Wrote the first answer to Why a null set is subst of every set
  Math and Arithmetic | Algebra | Geometry  •  24 Jan 2011 23:23
• Wrote the first answer to Is a triangle a solid figure
  Math and Arithmetic  •  24 Jan 2011 23:14