24
Lesson 24 of 84 · Westward Expansion
Women on the Frontier
The Cold War (1947–1991) was a period of tension between the U.S. and the Soviet Union. It involved an arms race, space race, and competition for global influence.
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?