When currencies fail - Here's a great article on hyper inflation.
http://www.mint.com/blog/finance-core/hyperinflation-the-story-of-9-failed-currencies/#comment-32276
Hyper inflation has occured;
Weimar Germany: 1922-23
Hungary: 1945-46
Chile: 1971-81
Argentian: 1975-92
Peru: 1988-91
Angola: 1991-99
Yugoslavia: 1992-95
Belarus: 1994-2002
Zimbabwe: 2000-2009
Interesting fact - When Zimbabwe became an independent African state in 1980, the Zimbabwe dollar was actually valued higher than the US dollar, at a rate of 1.25 USD to 1 ZWD ... today (17th June 2009) 1 USD is worth 37,456,777 ZWD.
