The North and South states developed overtime with extremely different views and ways of life. The South’s economy relied heavily on agriculture while the North became more and more industrialized. Different social cultures and political beliefs developed causing certain events/compromises to happen across the nation, eventually forcing the south to secede and sparked the American Civil War. After the Louisiana Purchase in 1803, Congress was forced to create policies to assist the spread of slavery into new western territory. Missouri’s petition for statehood as a slave state cause a bitter debate within the nation. In the end, Missouri became a slave state and Maine became a free state, keeping balance within congress. A line was also drawn through western territories along the 36:30 parallel, dividing north and south into free and slave. Thomas Jefferson, after hearing the news said, “considered it at once as the knell of the Union. It is hushed indeed for the moment. But this is a reprieve only, not a final sentence. A geographical line, coinciding with a marked principle, moral and political, once conceived and held up to the angry passions of men, will never be obliterated; and every new irritation will mark it deeper and deeper.”Dred Scott was a Virginia slave who tried to sue for his freedom in court. The case eventually went to the level of the Supreme Court where it was decided Dred Scott was a piece of property absolutely none of the legal rights given to a human being. The Dred Scott Decision threatened to entirely change the political landscape that had managed to prevent civil war. Slaves being deemed property made the federal government’s authority to regulate slavery harder. Abraham Lincoln was elected by a landslide in 1860 despite not being written down on many southern ballots. As a Republican, his party’s anti-slavery outlook scared many white southerners. And on December 20, 1860 shortly after the polls closed South Carolina seceded from the Union causing six more states followed by the spring of 1861.