What factors contributed to the stock market crash and economic collapse?

Black Tuesday hit Wall Street as investors traded some 16 million shares on the New York Stock Exchange in a single day. Billions of dollars were lost, wiping out thousands of investors. In the aftermath of Black Tuesday, America and the rest of the industrialized world spiraled downward into the Great Depression

Explanation:

Did have any time period you needed to have?  This was 1929 to 1939

austria

hugary

yugoslavia

czechoslovakia

the results of roman expansion produced social conflict and civil war. julius caesar gained power and became a dictator but was then assassinated. the reign of augustus began a long period of imperial rule and peace in the roman empire. rome faced the problems of how to maintain peace, law, and order.

hope this !

brainliest?