The Great Depression was the worst economic crisis in U.S. history, lasting from 1929 to the early 1940s. It was caused by a combination of factors, including the stock market crash of 1929, bank failures, overproduction of goods, unequal wealth distribution, and poor government policies. The stock market crash, known as Black Tuesday (October 29, 1929), was triggered by excessive speculation, where investors borrowed money to buy stocks. When prices started falling, panic selling caused a massive market collapse, wiping out billions of dollars in wealth. Many banks had invested in stocks and lost money, leading to bank failures. Over 9,000 banks shut down, and because the government had no protections for bank deposits, millions of Americans lost their life savings. This lack of financial security led to widespread panic, further deepening the crisis. Another major cause was overproduction in both agriculture and industry. Factories and farms produced more goods than people could afford to buy, leading to falling prices and business closures. Many companies laid off workers to cut costs, increasing unemployment. Unequal wealth distribution made the situation worse because the richest 1% of Americans controlled over 33% of the nation's wealth, while most people lived paycheck to paycheck with no savings to fall back on. When businesses failed, workers lost jobs, and there was no financial safety net. Additionally, the Hawley-Smoot Tariff of 1930 aimed to protect American businesses by increasing taxes on foreign goods, but it backfired when other countries raised their tariffs in response, reducing global trade and worsening the economic downturn.