Final answer:
The American Revolution opened up the trans-Appalachian West for settlement.
Step-by-step explanation:
A major impact of the American Revolution was that it opened up the trans-Appalachian West for settlement. Prior to the revolution, the British had placed restrictions on American westward expansion through measures like the Proclamation of 1763. The revolution helped to remove these restrictions, allowing American settlers to move into lands west of the Appalachian Mountains.
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