10
Lesson 10 of 84 · Industrial Revolution
Valley Forge: A Winter of Hardship
During medieval Europe, feudalism organized society into lords, vassals, and serfs. Castles dotted the landscape, and the Catholic Church played a central role in daily life.
Key Facts
1
Timelines show events in order.
2
Cause and effect explain why things happen.
3
Oral histories preserve community stories.
Timeline
1776
The Declaration of Independence is signed
1787
The U.S. Constitution is written
1791
The Bill of Rights is ratified
Check Your Understanding
Question 1
1 of 2Which is a secondary source?