American frontier, Definition, Significance, & Maps

American frontier, in United States history, the advancing border that marked those lands that had been settled by Europeans. It is characterized by the westward movement of European settlers from their original settlements on the Atlantic coast in the early 17th century to the Far West in the late 19th century.

Westward Expansion

What is the American frontier?

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American frontier - Wikipedia

American frontier, Definition, Significance, & Maps

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United States Regions

American frontier, Definition, Significance, & Maps