Cash money would lose integrity if no gold was there to represent and backup our currency value.
I think it was 640 B.C.
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The Cold War began 1947 and ended 1991. Communism began in in the mid-1800’s and eventually ended in the 1990’s
Due to the fact that the first and third don't make sense, I think the answer should be the second.
Hope this Helps! :)
