You know, there is actually one other thing I don't know, but I fail to remember what it is!
But I *have* read lots of popularized accounts of math (or physics) history...like "E=Mc2" by David Bodanis, and "It Must be Beautiful" by Graham Farmelo. And my father-in-law makes geometric puzzles which we just recently started to sell in the spanking new Hypography store at
http://www.hypography.com/sciencestore/ (shameless plug)...
Tormod