Human: Where did the 1929 stock market crash happen? Assistant: 
The crash happened in the United States, but it was a global event. The stock market crash of 1929 was the worst financial crisis and economic downturn in the history of the United States. The stock market crash of 1929 occurred on Black Tuesday, October 24, 1929. The Dow Jones Industrial Average lost 22.6% of its value in one day, and the crash was the beginning of the Great Depression.