Which event is used by historians and economists to mark the beginning of the Great Depression?

Historians and economists commonly mark the beginning of the Great Depression with the stock market crash of 1929, especially Black Tuesday, October 29, when stock prices plunged. The Smoot-Hawley Tariff Act came later, and the other choices do not mark the usual starting point. The correct choice is “Black Tuesday, which was the day the stock market collapsed.”

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