I just finish reading the Dred Scott v. Sanford 1852 case , but i didnt quite catch what was the decision .. after he sued Emerson and then Sandford he sued to Supreme Court of US what happened? he won lose? something??? please and thank help me ^-^

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circumstances of the case? How did the Court rule, and what was the significance of that decision? What is the relationship between the Dred Scott decision and the 1855 Freeport Doctrine?