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the US admitted Missouri as a slave state and Maine as a free state (added both to the US owned land)

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The Liberator begins publication( January 1, 1831)

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The Liberator begins publication( January 1, 1831)

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the most widely circulated anti-slavery newspaper during the early 1830s

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Nat Turner Revolt (August 21-August 23, 1831)

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Nat Turner Revolt (August 21-August 23, 1831)

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new oppressive legislation prohibiting the education, movement, and assembly of slaves.

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a conflict between the United States and Mexico fought from April 1846 to February 1848. ... It stemmed from the annexation of the Republic of Texas by the U.S. in 1845 and from a dispute over whether Texas ended at the Nueces River (the Mexican claim) or the Rio Grande (the U.S. claim).

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five separate bills passed by the US Congress in 1850 that defused a political confrontation between slave and free states on the status of territories acquired in the Mexican–American War

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Uncle Tom's Cabin Published (June 5, 1851)

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Uncle Tom's Cabin Published (June 5, 1851)

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story of Uncle Tom(a book), an enslaved person, depicted as saintly and dignified, noble and steadfast in his beliefs. Traveling in by boat auction in New Orleans.

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Republican Party formed (March 20, 1854) 

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Republican Party formed (March 20, 1854) 

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This political party arose to stop the expansion of slavery. Combination of antislavery groups.

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The Kansas-Nebraska Act repealed the Missouri Compromise, divided the Louisiana Purchase land in 2 territories, and allowed for popular sovereignty.

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Representative Preston Brooks entered the the Senate Chamber and began beating Senator Charles Sumner, an antislavery republican.

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The Dred Scott Decision was a legal case where the Supreme Court ruled that Dred Scott was not entitled to his freedom even though he resided in a free state.

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A group of abolitionists were led by John Brown to raid a federal armory in order to cause a revolt of enslaved people and destroy the institution of slavery.

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Abraham Lincoln won the presidential election in 1960 against Hannibal Hamlin. The election caused a clear divide between the people, since the South was fearful of Lincoln's election.

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South Carolina secedes (December 20, 1860)

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South Carolina secedes (December 20, 1860)

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South Carolina became the first state to secede from the Union. They seceded because they disproved of the election of Abraham Lincoln.