82
Lesson 82 of 84 · History
Exploration and the Age of Discovery
The Industrial Revolution changed manufacturing. Factories replaced workshops, machines replaced hand tools, and cities grew rapidly as people moved from farms to find jobs.
Key Facts
1
Cause and effect explain why things happen.
2
Oral histories preserve community stories.
3
Primary sources come from the time of the event.
Timeline
1803
The Louisiana Purchase doubles the size of the U.S.
1861
The Civil War begins
1865
The Civil War ends; slavery is abolished
Check Your Understanding
Question 1
1 of 2What tool puts events in order?