Question

what do mean the frontier mean to the American?​

Answer 1

Answer:

Americans explored the land and extended the boundaries, because of this the native American People were forced to move, the native people after wondering and travelling reached a boundary and this boundary were the natives reached was known as frontier.

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Answer 2

Answer:

The conquest and purchase of land by the Americans resulted in the extension of boundaries. The natives of America were compelled to move accordingly. The boundary where natives reached was known as 'frontier'.