Which day marked the first major panic of the 1929 Wall Street crash in New York?

Black Thursday, October 24, 1929, marked the first major panic of the 1929 Wall Street crash in New York.

The New York Stock Exchange opened amid heavy selling after weeks of declining prices. Trading volume became enormous, and the Dow Jones Industrial Average fell sharply during the session. A group of leading bankers later pooled funds to buy heavily traded shares, temporarily helping stabilize prices and calm the exchange.

The relief did not last. Selling returned the following week, with Black Monday on October 28 and Black Tuesday on October 29 producing further dramatic declines. The crash damaged confidence, reduced household wealth, and contributed to the economic contraction that became the Great Depression.

Black Thursday is sometimes incorrectly used for October 29, but that date is Black Tuesday. The four-day sequence also included Black Friday, October 25, when a temporary recovery followed the bankers' intervention. The crash was a financial turning point, although historians treat the Depression as resulting from several interacting causes.