Measured in terms of an ounce of gold, the US Dollar has declined 97.5% since becoming a fiat currency in 1971 with the termination of the Bretton Woods agreements. Price of gold in 1971: $40.62/oz. Price of gold today: $1,614.05/oz.

A couple interesting and related videos:
http://youtu.be/RvL_Dm2d99A
http://youtu.be/WLM0M_fCJHM

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