What date is called Black Tuesday in accounts of the Wall Street Crash of 1929?

Black Tuesday, the climactic trading day of the Wall Street Crash of 1929, was 29 October 1929.

On that day, investors sold millions of shares on the New York Stock Exchange, and the Dow Jones Industrial Average fell nearly 12 percent. The selling followed Black Thursday on 24 October and a temporary recovery attempt over the following trading days. Black Tuesday is therefore a specific date within the wider Wall Street Crash, not the name of the entire event.

The crash followed years of rapid share-price growth, widespread speculation, and buying on margin. When confidence weakened, forced selling and shrinking credit amplified the decline. The market continued falling after October 1929, reaching its major low in July 1932.

The crash is often linked with the Great Depression, but it was not the sole cause of the worldwide economic crisis. Bank failures, deflation, declining production, international debt problems, and policy decisions also contributed to the Depression.