The document summarizes the causes and effects of the Stock Market Crash of 1929 that led to the Great Depression. It describes how rampant speculation in the roaring 1920s led to an unsustainable bubble. The crash was directly triggered when plans for the Smoot-Hawley Tariff act faced limitations, causing a panic on Black Thursday in October 1929 and a collapse of stock prices over the next few years. The crash had devastating economic effects worldwide and led to FDR's New Deal programs to stimulate recovery.