The document discusses the causes and end of the Great Depression in the United States. It describes the economic boom of the 1920s, the stock market crash of 1929, and President Roosevelt's New Deal programs of the 1930s, which aimed to revive the economy but ultimately failed to end the depression. Military spending during World War II reinvigorated industrial production and put many Americans back to work, fully ending the depression by 1941 when the U.S. entered the war.