Native Americans were fortified, It demonstrated that they were not giving up and continued on. The major impact was on economy in westward movement.
What is westward movement?
Western expansion took place in 19th century, the reason of the expansion was to grow the economy of the nation through gold mines opportunities. American settlers were Gold Rush, the Oregon Way, and a sense in "manifest destiny" all culminated to the Louisiana Purchase.
Thus, It demonstrated that they were not giving up and continued on.
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