28
Lesson 28 of 84 · U.S. History
The Reagan Era
Indigenous peoples lived in the Americas for thousands of years before Europeans arrived. They developed diverse cultures, languages, and agricultural systems across the continents.
Key Facts
1
Historians use evidence to support claims.
2
Timelines show events in order.
3
Cause and effect explain why things happen.
Timeline
1861
The Civil War begins
1865
The Civil War ends; slavery is abolished
1869
The Transcontinental Railroad is completed
Check Your Understanding
Question 1
1 of 2Why do we study history?