It didn't stop it at all, it only furthered it when it went unchecked.
Answer:
Louisiana purchase entailed negative consequences for most of the Louisiana population - blacks and Indians - and became one of the causes of acute social contradictions in modern America. In just 30 years, Americans ousted Indians from most of the Mississippi Valley, physically destroying or expelling them from their ancestral lands through fraudulent treaties.
Explanation:
Population increase, and new rulers
This would be no
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