54
Lesson 54 of 84 · American Revolution
Spies and Secret Codes
During World War II (1939–1945), the Allies fought the Axis powers. The conflict affected every continent and led to lasting changes in borders, governments, and cooperation.
Key Facts
1
Oral histories preserve community stories.
2
Primary sources come from the time of the event.
3
Historians use evidence to support claims.
Check Your Understanding
Question 1
1 of 2What is an artifact?