The Great Depression lasted roughly from 1929 to 1939. It began with the Wall Street stock market crash in October 1929 and continued as a severe global economic downturn throughout the 1930s. The worst period in the United States was between 1931 and 1933, when unemployment and economic collapse peaked. Recovery began gradually in the late 1930s and was more sustained into the early 1940s, with the onset of World War II helping to end the depression. Thus, the commonly accepted years of the Great Depression are 1929 to about 1939 or 1941 depending on the country and context
