"The first nine digits after the decimal can be remembered by e = 2.7(Andrew Jackson)2, or e = 2.718281828..., because Andrew Jackson was elected President of the United States in 1828. For those good at mathematics on the other hand, this is a good way to remember their American history."(as quoted in The Constants of Nature by John Barrow).
-- Edward Teller
PS: Due to other work, some travel, and some personal business, I may not be blogging much until mid-September. Or it might only be short stuff like this. Unless something gets my dander up.