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Settlers moved to Kansas to homestead in peace, but the controversy over slavery began to affect everyone.

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Made it a crime to help runaway slaves and allowed officials to arrest those slaves in free areas.

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California was able to enter the Union as a free state.

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Four leading candidates for the Democratic presidential nomination emerged.

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A plan that would divide the remainder of the Louisiana Purchase into two territories.

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In 1846 Scott sued got his freedom in the Missouri state courts.

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Lincoln challenged Douglas in what became the historic Lincoln-Douglas Debates.

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The Northern and Southern Democrats could not agree on a candidate.

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On the night of May 24, 1856, the radical abolitionist John Brown, five of his sons, and three other associates murdered five proslavery men at three different cabins along the banks of Pottawatomie Creek, near present-day Lane, Kansas.

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The Compromise of 1850 was a package of five separate bills passed by the United States Congress in September 1850 that temporarily defused tensions between slave and free states in the years leading up to the American Civil War.

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Uncle Tom's Cabin focuses on the struggles of a slave, Tom, who has been sold numerous times and has to endure physical brutality by slave drivers and his masters. One of Stowe's central themes is that Tom, despite his suffering, remained steadfast to his Christian beliefs.

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John Brown was a man of action -- a man who would not be deterred from his mission of abolishing slavery. On October 16, 1859, he led 21 men on a raid of the federal arsenal at Harpers Ferry, Virginia.