How do you think the American expansion into the Native American lands between 1820 and 1840 affected the slave trade?

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Explanation:

As Americans we have a great history with some dark events. Practically invading the Native American settlements would lead the original thirteen colonies to overall view anything but white people as nothing more than savages, which led to an ideology that sadly continued long into and after slavery.

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there is no chart here so no one can answer this.