The event known as the start of the Great Depression is widely regarded to be the stock market crash on October 29, 1929, commonly referred to as Black Tuesday. On this day, a significant collapse of stock prices occurred, triggering widespread financial panic among investors and the American public. The crash marked the beginning of a severe economic downturn that lasted throughout the 1930s, characterized by mass unemployment, widespread business failures, and a drastic decline in industrial output. This catastrophic event exposed the vulnerabilities in the American economy and set the stage for the implementation of the New Deal policies aimed at recovery.