may 20, 1857 - Dred Scott v. Sanford

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Speaking for a widely divided court, Chief Justice Taney ruled that Dred Scott was not a citizen and had no standing in court; Scott's residence in a free state and territory had not made him free since he returned to Missouri; Congress had no power to prohibit slavery in a territory (based on the 5th Amendment right of a person to be secure from seizure of property), thus voiding the Missouri Compromise of 1820.

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