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Lesson 59 of 84 · American Revolution
Revolutionary Ideas: Liberty and Equality
Inventions like the printing press, steam engine, light bulb, telephone, and computer transformed how people live, work, and communicate.
Key Facts
1
Oral histories preserve community stories.
2
Primary sources come from the time of the event.
3
Historians use evidence to support claims.
Check Your Understanding
Question 1
1 of 2What is an artifact?