The main cause was disease by far.
The great depression was started shortly after the stock market crash on october in 1929 it sent wall street into a spiraling panic and destroyed millions of investers
I googled it and found this
The Americans won the Battle of Yorktown because the British were low on reinforcements and got the assistance of the French. The Battle of Yorktown was an important and historic battle because it was the last battle of the American Revolution. The British had won a series of victories against the Americans in past battles.
C. Elected black officials tried to abridge to the rights of their former slave owners
