Why did problems develop over the admittance of missouri to the united states?

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What happened as the result of a conflict between british troops and a colonial militia in massachusetts

Which quotation from the declare ration of independence shows the idea of the social contract

Which effect did the united states supreme court's decision in plessy v. ferguson have? 1. ending segregation in all public schools in america 2. protecting voting rights for african americans by eliminating literacy tests 3. upholding the rights of all citizens to be treated equally by the government 4. authorizing the system that kept black and white people separated