By "paper money" do you (and the article's author) actually mean "fiat money" (http://en.wikipedia.org/wiki/Fiat_money) dating back 11th century China? It was in use as early as 18th century America.
The only thing about "paper money" that I can think of that is about 100 years old is the beginning of the departure from the gold standard (http://en.wikipedia.org/wiki/Gold_standard).
The only thing about "paper money" that I can think of that is about 100 years old is the beginning of the departure from the gold standard (http://en.wikipedia.org/wiki/Gold_standard).