In terms of design, paper currency in the United States hasn’t changed much in the past hundred years. There have been updates and additional flourishes — not to mention security measures — but overall, it’s essentially the same set of bills circulated since 1913. 1913 was a big year for currency. Congress, that year, passed the Federal Reserve Act of 1913, thereby setting up a system in which Federal Reserve Notes (paper currency) were distributed to Federal Reserve Banks around the country. These notes were legal tender, backed by the Fed, featuring dead presidents, black, red, and blue ink, and…

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