67
Lesson 67 of 84 · The Civil War
The Missouri Compromise
Secondary sources — textbooks, documentaries, encyclopedia articles — are created after an event. They analyze and interpret primary evidence to build a broader understanding.
Key Facts
1
Cause and effect explain why things happen.
2
Oral histories preserve community stories.
3
Primary sources come from the time of the event.
Timeline
1963
Martin Luther King Jr. gives the 'I Have a Dream' speech
1964
The Civil Rights Act is signed
1969
Astronauts land on the Moon
Check Your Understanding
Question 1
1 of 2What tool puts events in order?