Final answer:
Black Tuesday was the day stock prices fell during the Great Depression. It occurred on October 29, 1929, and marked the start of a severe economic downturn.
Step-by-step explanation:
The day in which stock prices fell due to many people selling their shares and caused the Great Depression was called Black Tuesday. It occurred on October 29, 1929, and marked the start of the most severe economic downturn in the history of the United States. On this day, millions of shares were sold, leading to a collapse in stock market prices and widespread panic.
Learn more about Causes and events of the Great Depression