40
Lesson 40 of 84 · American Revolution
The Declaration of Independence: Key Ideas
The Roman Empire spread across Europe, North Africa, and the Middle East. Rome built roads, aqueducts, and legal systems. Architectural innovations like the arch and dome still influence building today.
Key Facts
1
Timelines show events in order.
2
Cause and effect explain why things happen.
3
Oral histories preserve community stories.
Timeline
1964
The Civil Rights Act is signed
1969
Astronauts land on the Moon
1989
The Berlin Wall falls
Check Your Understanding
Question 1
1 of 2Which is a secondary source?