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Lesson 1 of 84 · American Revolution Compare
Causes of the American Revolution
History is the study of past events and the people, ideas, and forces that shaped them. By studying history, we understand how the world came to be and learn lessons for the future.
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.
Timeline
1787
The U.S. Constitution is written
1791
The Bill of Rights is ratified
1803
The Louisiana Purchase doubles the size of the U.S.
Check Your Understanding
Question 1
1 of 2What is a primary source?