1.John D. Rockefeller - donated $531 million in his life
2.Playing cards - used as money in 17th-century Canada
3.Twenty-cent piece - a U.S. coin 1875-78
4.Fried codfish - used as money in colonial days
5.A private in the 1776 army - earned 52 cents a month
6.Secret Service - first formed to fight counterfeiters
Source: "You Can't Count A Billion Dollars! And Other Little-Known Facts About Money", Babara Seuling, Ivy Books, 1991.