The Great Depression began with the stock market crash of 1929, known as "Black Tuesday". As stock prices plummeted, margin calls led to mass stock sales that flooded the market and caused prices to drop further in a panic. This collapse of the stock market was the beginning of the Great Depression. As banks had invested heavily in the stock market, many became unstable as people withdrew their money, leading to hundreds of bank failures across the country. Franklin D. Roosevelt was elected president in 1932 on a platform of recovery and reform with his New Deal programs. His administration created numerous agencies and public works programs to provide relief, recovery, and reform to address the economic crisis gripping the nation.