The 1929 Wall Street Crash day known as Black Thursday was October 24, 1929.
On Black Thursday, heavy selling struck the New York Stock Exchange after a long period of speculation and rising share prices. The market fell sharply in the morning, and trading volume reached a then-record level. A group of leading bankers later met and bought prominent stocks to support prices, temporarily calming the market.
The intervention did not end the underlying weakness. Selling resumed the following week, with Black Monday on October 28 and Black Tuesday on October 29. The crash damaged confidence and helped deepen the economic downturn that became the Great Depression, although historians do not treat the crash alone as its sole cause.
Black Thursday is sometimes confused with Black Tuesday, the later October day most associated with the final panic. The dates are distinct, and the 1929 episode also differs from the 1987 Black Monday crash.