What event is widely regarded as the start of the 1929 Wall Street crash?

Black Thursday is widely regarded as the event that began the 1929 Wall Street crash.

Black Thursday occurred on October 24, 1929, when heavy selling struck the New York Stock Exchange. The Dow Jones Industrial Average fell sharply during the morning, but a group of major bankers bought stocks in an effort to restore confidence and stabilize prices.

That intervention temporarily calmed the market, yet the underlying speculative boom had not been solved. Selling returned with greater force in the following sessions, including Black Monday on October 28 and Black Tuesday on October 29.

Black Thursday is sometimes confused with Black Tuesday, which is often treated as the crash’s most infamous session. The wider collapse continued after those October dates, and the Dow did not reach its eventual low until 1932.