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In 1842 the Fugitive Slave Law made in 1793 was determined to be constitutional under the laws of the United States. This meant that capturing slaves was now a Federal government responsibility. The court case that brought this about was Prigg v. Pennsylvania.

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9y ago
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14y ago

Nothing did.

It was the failure to settle this issue that caused the Civil War.

The Missouri Compromise of 1820 looked like a clear solution - no slavery North of the Missouri line. But the enormous new territories acquired from Mexico in 1847 intensified the debate, and all the later compromises failed.

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14y ago

The Mason-Dixon Line, the southern boundary of the state of Pennsylvania, surveyed in 1763-1767 by Charles Mason and Jeremiah Dixon.

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12y ago

The Mason-Dixon Line

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3y ago

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Q: What was the dividing line between slave and free states?
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