On which date did the 1929 Wall Street Crash's most famous sell-off, Black Tuesday, occur?

Black Tuesday, the most famous sell-off of the 1929 Wall Street Crash, occurred on October 29, 1929.

More than 16 million shares changed hands on the New York Stock Exchange that day, a trading volume record at the time. The Dow Jones Industrial Average fell about 12%, following major declines on Black Thursday, October 24, and Black Monday, October 28.

Black Tuesday did not by itself cause the entire Great Depression. The crash exposed excessive speculation, widespread margin buying, fragile banks, and weaknesses in the broader economy. Stock prices continued falling after October 29, and the Dow eventually reached a low in July 1932.

A common mix-up is treating Black Tuesday as the first day of the crash. It was the dramatic climax of a series of late-October collapses, not the beginning of the downturn.