What caused the Great Depression was the Stock Market of 1929, Drought Conditions, Bank failures. The Great Depression started on October 29, 1929 to 1939 (for 10 years.) The nick name was Black Tuesday.
a. The manifest destiny was used to expand the territory of the United States. The belief was that God had invested the power in the United States to spread democracy and their dominion across all of North America.
b. The purpose of the Manifest Destiny was to expand the United States.
