25
Lesson 25 of 84 · Industrial Revolution
The Haitian Revolution
The Space Race led to remarkable achievements. The Soviet Union launched Sputnik in 1957. The U.S. landed astronauts on the Moon in 1969.
Key Facts
1
Timelines show events in order.
2
Cause and effect explain why things happen.
3
Oral histories preserve community stories.
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 2Which is a secondary source?