16
Lesson 16 of 84 · Industrial Revolution
African Americans in the Revolution
The Constitutional Convention of 1787 produced the U.S. Constitution after months of debate. Delegates in Philadelphia created a framework of government with checks and balances.
Key Facts
1
Primary sources come from the time of the event.
2
Historians use evidence to support claims.
3
Timelines show events in order.
Timeline
1969
Astronauts land on the Moon
1989
The Berlin Wall falls
2001
September 11 attacks change U.S. security policy
Check Your Understanding
Question 1
1 of 2What is a primary source?