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Lesson 26 of 84 · Westward Expansion
National Parks: Preserving the West
Women throughout history have broken barriers. From Cleopatra to Marie Curie to modern leaders, women have shaped politics, science, art, and business.
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?