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Lesson 64 of 84 · U.S. History
Challenges and Opportunities Today
Famous speeches shaped history: Lincoln's Gettysburg Address, King's 'I Have a Dream,' and Roosevelt's fireside chats moved millions to action and reflection.
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.
Timeline
1791
The Bill of Rights is ratified
1803
The Louisiana Purchase doubles the size of the U.S.
1861
The Civil War begins
Check Your Understanding
Question 1
1 of 2What is an artifact?