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Congress allows Kansas and Nebraska territories to decide whether or not to have slaves.
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the slave Dred Scott sues his master for his freedeom, but is denied rights as a citicen to sue.
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Texas government calls convention to decide whether to join the confederacy and keep their slaves.
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Texas voters decide three to one to join the confederavy and withhold their slaves.
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Texas officially secedes from the union and joins the confederacy.
