21
Lesson 21 of 84 · U.S. History
World War II: America Joins the Fight
The Great Depression, triggered by the 1929 stock market crash, brought widespread poverty. President Roosevelt's New Deal programs provided relief, recovery, and reform.
Key Facts
1
Primary sources come from the time of the event.
2
Historians use evidence to support claims.
3
Timelines show events in order.
Check Your Understanding
Question 1
1 of 2What is a primary source?