82
Lesson 82 of 84 · U.S. History
World War I and America
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
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 2What tool puts events in order?