The document summarizes the economic conditions during the 1920s stock market boom and bust, and the Great Depression that followed. It describes how many Americans invested heavily in the stock market during the prosperous 1920s, often buying stocks on margin, but then panicked when the market crashed in 1929, wiping out their savings. The crash led to widespread unemployment, poverty, and homelessness as businesses closed and banks failed across the country in the early 1930s. President Roosevelt attempted to address the crisis through New Deal programs.