The **Great Depression** in America is commonly marked by the **Stock Market Crash** of **1929**. Triggered on **October 29**, known as **Black Tuesday**, this event led to a catastrophic decline in stock prices, resulting in widespread **bank failures** and business bankruptcies. The economic downturn catalyzed massive unemployment and poverty levels across the nation. Subsequent federal policies, such as the **New Deal**, aimed to address the crisis and restore economic stability. The Great Depression reshaped American society and government, leading to long-term changes in economic practices and financial regulations.