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After Lincoln was elected president South Carolina seceded from the union. This was how the Confederacy formed.

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The Republican Party was made based on opposing slavery in the western territory.

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John took over a U.S. arsenal at Harper's Ferry Virginia. He did this in attempt to start an armed slave revolt.

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In one fateful night, John Brown brought the country closer to Civil War

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An abolitionist John Brown killed some pro-slavery settlers in Kansas.

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In 1854 The Kansas-Nebraskan Act allowed Kansas and Nebraska to decide for themselves if they will allow slavery

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Sound Smart: The Kansas-Nebraska Act of 1854 | History

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Dred Scott was a slave who wanted to be a U.S. citizen but the supreme court denied him. They said anyone with African blood cannot become a U.S. citizen.

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In 1860 Abraham Lincoln was elected president and helped abolish slavery.

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The United States let Missouri join the U.S. as a slave state and Maine join as a free state.

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Abolitionists helped slaves escape to free states by providing hiding locations and transportation.

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Harriet Beecher Stowe's novel "Uncle Toms Cabin" showed the evils of slavery. It became a worldwide seller and helped start an anti-slavery wave.