1913: More importantly for value of US Dollar was the creation of the Federal Reserve, which has destroyed the Dollar, and continues to do so via money printing.

1933: Interesting that while the USA and most of Europe went into a decade-long Great Depression, Germany simultaneously experience the greatest 5-year economic miracle in world history, putting it on top of the world in terms of economic strength (when it had just been in the worst hyperinflation economic disaster in world history). Hitler ended usury, detached from the Rotschild bank system, and the economy boomed like no economy ever had in world history. This is why [they] went to war against Germany.

1945: Bretton Woods Agreement

1971: End of the Gold Standard for US Dollar