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On March 3, 1820, the house passed the Missouri Compromise and it was signed into law four days later by President James Monroe.The bill focused on Missouri and Maine, admitting Missouri into the union as a slave state and making Maine a free state. The law also banned slavery in the leftover land from the Louisiana Purchase located north of the southern border of Missouri. The Compromise was originally proposed by Henry Clay in 1819 and the second part of the bill was added the year it was passed.

This pushed the disagreement between the north and south over slavery further because congress was now allowing slavery in certain territories which angered the north but not allowed it in other areas which angered the south. The South did not like the congress could pass laws about slavery which pushed them closer to seceding.

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In 1822, Denmark Vesey, a formerly enslaved person, planned a rebellion in Charleston, SC. His plan included executing white slave owners to free the enslaved people of Charleston and then sail to Haiti with his men before they could be caught. However, two men revealed his plan before it could be carried out and he and his men were arrested, many of which were executed.

This even gave the abolitionist movement more motivation to free enslaved people and the movement grew after it. This caused the north and the south to be even more divided on the issue of slavery. This made the south want to secede more because they wanted to make their own harsher laws to further control enslaved people to prevent more rebellions from happening.

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Nat Turner was an enslaved man who believed he was called by God to free slaves in the south. On August 21, 1931, he led many other enslaved people through Virginia, killing white families and slave owners along the way. The authorities stopped the rebellion after they had killed around 55 people and Nat Turner was sentenced to death two months later. This resulted in the south created stricter slave laws.

Because of this rebellion, the south made their laws about slavery stricter which angered the north and further divided the regions on the issue of slavery. The south wanted to hold on tighter to their slaves which urged them closer to secession so they could strengthen their laws without he limit of the federal government.

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The nullification crisis occurred in 1832-33 and was a disagreement between South Carolina and the federal government over tariffs. The tariffs helped the north but did not benefit the southern farmers so South Carolina refused to pay the tariffs and only later agreed to pay when Andrew Jackson passed the Force Bill to send troops to get the tariffs from South Carolina.

This divided the north and the south more becuase it benfited the manufactuers of the north and did not help the south. The south did not want tariffs placed on them or laws that help the north so they wanted to secede even more after this event.

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Before it was part of the union, Texas was a part of Mexico and was controlled by their government. However, over the course of several years, Texas had less of Mexican culture and was more American. This issue, the abolishment of the constitution of 1824, Texas being a part of Coahuila y Texas, and more economic and political issues led to Texas to fight for their independence starting a the Battle of Gonzales on October 2nd, 1835. The war continued on with Mexico having the upper hand until 1836 when Texas won their independence at the Battle of San Janito on April 21.

This divided the north and south because Texas banned slavery but southerners still moved there with their slaves as "indentured servants" which caused disagreements between the regions.

The south wanted to admit Texas as a slave state which made them want to secede more to gain that power.

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The Mexican American War started on May 13, 1846 and was caused by border disputes between Mexico and America. Mexico didn't recognize Texas as part of the United States while America wanted Texas and California to be a part of the US. President James K Polk was in office when the war was declared. The War ended with the Treaty of Guadalupe Hidalgo on February 2, 1848, America winning the war.

This further divided the north and the south because there were two new states admitted into the union after which re visited the debate over slavery.

The south wanted more slave states so they wanted to keep their slave laws and secede.

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The Wilmot Proviso, written by David Wilmot from Pennsylvania, was a failed proposal to ban slavery in the territories America gained from the Mexican-American War 1846. The bill was passed by the House in 1846 but not in the Senate because the south had more pull in the senate.

The debate over the bill was divided between the north and south with the north wanting it to get passed and the south wanting the opposite.

This bill made the south angry because it showed that the mission to ban slavery was growing in the US and they did not want this to happen.

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The Compromise of 1850 was comprised of five laws and was passed in September of 1850. The bill admitted California as a free state, let Utah and New Mexico decide if they were free states or slave states, defined the Texas-Mexico border, and created the Fugitive Slave Act. The Compromise was created by Henry Clay and Stephan Douglas. The Fugitive Slave Act required citizens to help apprehend runaway slaves and took the right of trial by jury away from enslaved people.

The law angered the north because it took more rights away from enslaved people and the north often did not follow the law which angered the south. This made the south want to secede more because more people joined the abolitionist movement due to the law.

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The abolitionist movement's goal was to abolish slavery and it lasted from about the 1830s to the 1870s. Their system was modeled off of the abolitionist movement in Great Britain in the 1830s. Some important figures to this movement include William Lloyd Garrison, John Brown, Fredrick Douglass, Harriet Beecher Stowe, and many more who fought for the emancipation of enslaved people in the United States.

This movement was very common in the north and caused much tension between the north and south because of their conflicting ideals.

The movement was very widespread in the US and pushed for the abolishing of slavery which pushed the south to secede to keep their laws and keep slavery.

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The Ostend Manifesto was written by three US ambassadors to William L Marcy, who was secretary of state at the time, on October 18, 1854 that urged President Franklin Pierce to invade Cuba. Cuba was controlled by white plantation owners and slavery was legal there and America wanted to gain the land to gain more power and also feared the Spain would pass anti slavery laws.

This divided the north and the south because the north did not want to gain another territory where slavery was legal while the south did want to acquire the land.

The south wanted to secede more after this event because the ultimate decision was to not take Cuba which would benefit the south.

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The Kansas Nebraska Act was written in 1854 by Stephen Douglas and it repealed the Missouri Compromise. The bill created the two territories of Kansas and Nebraska and said that they would be slave or free states based on popular sovereignty. The creation of this bill repealed the Missouri Compromise because it concerned two territories in the land where slavery was banned in the bill. This led to "Bleeding Kansas" which was an event where many anti slavery groups and pro slavery groups moved to the area to try and sway the vote towards their side. The end result was both states entering the union as free states.

The event showed the divide between the north and the south and the different opinions which only created more of a rift between the groups. It also angered the south because they failed to sway the vote which made urge to secede stronger and greater.

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Dred Scott was an enslaved man who fought for his freedom all the way to the Supreme Court in 1857. Scott and his wife fought for their freedom starting Missouri because they were living int eh free state of Illinois but were still not declared freed. In the end, the supreme court made the decision that he was not a citizen but he was somebody else's property and was not a free man.

This fueled the abolitionist movement and made it more widespread in the north, while the south kept trying to fight against the movement. The case and the ruling caused even more disagreements between the two regions. This continued divide and hostility which was furthered by the case made the south want to become their own country even more than before.

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In Virginia, a man named John Brown led a raid on Harper's Ferry on October 17th, 1859. The plan was to capture wealthy and important people in the area and take control of the state armory and arsenal. He thought enslaved people would want to join the raid but after it did not gain momentum, John Brown was captured and sentenced to death.

John Brown was an abolitionist and attacked the south which angered the south because northern ideals were spreading. This event caused more tension in the two regions and pushed the south to want to form their own country to eliminate the abolitionist ideals of the US.

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The candidates in the election of 1860 were Abraham Lincoln (Republican), Stephan Douglas (Democrat), John Breckenridge (Southern Democrat), and John Bell (Constitutional Union). Although Lincoln lost the popular vote, he won the electoral vote, making him the president of the union. This marked the first time a republican had been elected as president and was the first election where the two primary candidates were from the same state.

This angered the south because their candidate did not win and a man from a free state in the union won the election.

The south wanted to secede more because of disagreements between Lincoln and the south.