Great Depression: A severe worldwide economic downturn that lasted from 1929 to the late 1930s, causing widespread unemployment and financial hardship.
New Deal: A series of programs and reforms implemented by President Franklin D. Roosevelt during the 1930s to counter the effects of the Great Depression.
World War II: A global war fought from 1939 to 1945 involving many nations, which had a profound impact on economies around the world.