The Missouri Compromise was a U.S. federal law that brought Maine into the United States as a free state, along with Missouri as a slave state, which maintained the balance of power between North and South in the U.S. Senate. As part of the compromise, the law prohibits slavery north of the 36-30″ parallel, except for Missouri. The 16th Congress of the United States passed the law on March 3, 1820, and President James Monroe signed it on March 6, 1820.  After reaffirming their independence from Britain with the War of 1812, the Americans turned to the West for new horizons. But as the United States moved westward, new challenges arose in extending slavery to new territories, including the Northwest Territories and Territories created by the Louisiana Purchase. The Northwest Ordinance prohibits slavery in the Northwest Territories (Ohio, Indiana, Michigan Illinois, Wisconsin and parts of Minnesota); However, debates over the Louisiana Purchase organization intensified when Missouri demanded the dignity of the state in 1819. Although the Missouri compromise was not the first American political compromise on slavery, it marked the beginning of an era in which debates on slavery dominated the American political landscape. The majorities of the House have not broken down into political domination.
The point of rotation and attainment of diesatose lay in the Senate, where the constitutional compromise of 1787 had provided for two senators per state, regardless of its population. The South, with its free population smaller than the North, has benefited from this regulation. Since 1815, the division of senate sections has been reached by twin admissions that left the North and South in 11 states during the application of the Missouri Territory.  The following summer, considerable public opinion was gathered in the north in support of Tallmadge`s proposal. Much of this anti-Missouri atmosphere, as it was called, was born out of the true belief that slavery was morally false. Political opportunity has been mixed with moral convictions. Many prominent anti-Missouri men had been active in the federalist party, which appeared to be in the process of disintegration; she was accused of looking for a problem to rebuild her party. Federalist leaders of the anti-Missouri group have pushed some northern Democrats to reconsider their support for the Tallmadge amendment and to support a compromise that would undermine the federalist party`s stimulus efforts. African-Americans were clearly opposed to slavery and news of some congressional opposition to its expansion spread to slave communities.
Denmark Vesey, a free black man who lives in Charleston, South Carolina, made the most dramatic use of white discord over the future of slavery in the West. Vesey cited the Bible and congressional debates on the Missouri issue to denounce the slavery of the chair of the African Methodist Episcopal Church, where he was a lay priest. In 1822, with a prominent ally named Gullah Jack, Vesey organized a slave insurrection that planned to conquer Charleston`s arsenal and conquer the city long enough for his black population to escape to the Black Free Republic of Haiti.