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Lesson 30 of 84 · Westward Expansion
How Expansion Changed Native Communities
Archaeology studies human history through excavation of artifacts, buildings, and physical remains. Archaeologists piece together stories from objects left behind long ago.
Key Facts
1
Timelines show events in order.
2
Cause and effect explain why things happen.
3
Oral histories preserve community stories.
Check Your Understanding
Question 1
1 of 2Which is a secondary source?