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The Missouri Compromise took place in 1820. In the years following the Louisiana Purchase, Congress was forced to establish a policy to guide the expansion of slavery into the new territory.  Missouri’s application for statehood as a slave state sparked a  national debate. In the end Congress reached an agreement which came to be known as the Missouri Compromise, which made Missouri a slave state and Maine a free state so things would be kept even. The way the Missouri Compromise played a role in the Civil War is that it created more slaves and slave territories in the Western Territory.

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The Wilmot Proviso took place between 1846-1850. The Wilmot Proviso was a piece of legislation proposed by Wilmot Proviso. If passed, it would have outlawed slavery in territory acquired by the United States in the Mexican-American war. Wilmot spent years fighting for his plan but all attempts failed. The reason this event played a role in the Civil War was because it was made to eliminate slavery within the land acquired as a result of the Mexican War which caused tension with southern territories.

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The Compromise of 1850 took place in 1850. The Compromise of 1850 admitted California as a free state. It also passed the Slave act which punished Northerners who have helped escaped slaves and Utah and New Mexico voted on when they would be free or slave. The role the Compromise of 1850 played into causing the Civil War was the fact that  the compromise admitted California as a free state and did not regulate slavery in the remainder of the Mexican cession all while strengthening the Fugitive Slave Act, a law which compelled Northerners to seize and return escaped slaves to the South.

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Uncle Tom's Cabin was published in 1852. It was a book written by Harriet Beecher Stowe. It was about a slave who befriends a sick little girl and on her dying wish she told her dad to free his slaves. The dad was going to to it but was killed by Tom's new owner and then Tom is whipped to death when he doesn't tell the new owner where the escaped slaves are. The way Uncle Tom's Cabin played a role into causing the Civil War is the fact that it was the second-best-selling book in America in the 19th century, second only to the Bible.  Its popularity brought the issue of slavery to life for those few who remained unmoved after decades of legislative conflict and widened the division between North and South.

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The Kansas-Nebraska Act of 1854 established Kansas and Nebraska as territories and set the stage for “Bleeding Kansas”(1855-1861) by its adoption of popular sovereignty. Under popular sovereignty, it is the people of the territories who decide by popular vote if the state is to be a free or enslaved. Settlers from the North and the South traveled to Kansas, hoping to swell the numbers on their side of the debate. In the fall of 1855, abolitionist John Brown came to Kansas to fight the forces of slavery. Brown killed 5 slavery supporters that day . The way Kansas-Nebraska Act & Bleeding Kansas is significant to the Civil War is that many people consider it the first battle of the Civil War because it is where the forces of anti-slavery and the forces of slavery met in battle.

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The Dred Scott Decision took place in 1857. This event was about a slave called Dred Scott who tried to sue for his freedom in court.  The case eventually rose to the level of the Supreme Court, where the justices found that, as a slave, Dred Scott was a piece of property that had none of the legal rights or recognitions afforded to a human being. The reason this event is so important into the development of the Civil War is that the Dred Scott Decision threatened to entirely alter the political landscape that had so far managed to prevent Civil War.  The classification of slaves as  property made the federal government’s authority to regulate the institution much more ambiguous.

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The Lincoln-Douglas Debates took place in 1858. This event was about Stephen Douglas who faced Abraham Lincoln in seven public debates across the state of Illinois where they debated the most controversial issue of the era: slavery. Even though Lincoln lost  these debates propelled Lincoln to the national spotlight and enabled his nomination for president in 1860. The role this event played into causing the Civil War was that these debates increased the tension between the northern and southern territories because they debated slavery and came to a  conclusion that did not satisfy one of the regions.

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The John Brown Raid took place in 1859. An abolitionist  called John Brown lead a small group on a raid against a federal armory in Harpers Ferry, Virginia in an attempt to start an armed revolt of enslaved people and destroy the institution of slavery. He succeed in the the raid but was caught the very next day. The way the John Brown raid played into the Civil War was that it inflamed  tensions and raised the stakes for the 1860 presidential election. Brown’s raid helped make any further accommodation between North and South nearly impossible and thus became an important drive of the Civil War.

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The Presidential Election of 1860 took place in 1860. In this event  Abraham Lincoln won the election for presidency by a considerable margin despite not being included on many Southern ballots. The reason Southerners were not voting for him was the fact that Lincoln was anti-slavery. A little over a month after the polls closed, South Carolina seceded from the Union.  Six more states followed by the spring of 1861.The reason this event is important in causing the Civil War is because it was the very last trigger event of the Civil War. Since Lincoln won the election the  country was split in two which made many southern states secede from the union.