The U.S. stock market crash known as Black Tuesday occurred in 1929.
Black Tuesday was October 29, 1929, when heavy selling overwhelmed the New York Stock Exchange. It followed Black Thursday on October 24 and Black Monday on October 28. The Dow Jones Industrial Average fell sharply as investors rushed to sell shares.
The crash did not single-handedly cause the Great Depression, but it intensified an already weakening economy. Banks, businesses, and households suffered as falling asset prices reduced wealth and confidence. Bank failures, unemployment, and declining industrial production followed during the early 1930s.
A common mistake is treating Black Tuesday as the entire crash. It was one especially dramatic day within a broader market collapse that began in September 1929 and continued into 1932.