Answer:
This was a congressional agreement of 1820 which included the admission of one free and one slave state to maintain the balance of free and slave states in the Union. This is the term used to describe a system of forced labor in which a person is considered to be the property of another person; it was the central issue in the Missouri Compromise. In an effort to preserve the balance of power in Congress between slave and free states, the Missouri Compromise was passed in 1820 admitting Missouri as a slave state and Maine as a free state. In 1854, the Missouri Compromise was repealed by the Kansas-Nebraska Act. First, Missouri would be admitted to the union as a slave state, but would be balanced by the admission of Maine, a free state, that had long wanted to be separated from Massachusetts. Second, slavery was to be excluded from all new states in the Louisiana Purchase north of the southern boundary of Missouri.
The Compromise of 1850 was a package of five separate bills passed by the United States Congress in September 1850 that defused a political confrontation between slave and free states on the status of territories acquired in the Mexican–American War. By September, Clay's Compromise became law. Finally, and most controversially, a Fugitive Slave Law was passed, requiring northerners to return runaway slaves to their owners under penalty of law. The Compromise of 1850 overturned the Missouri Compromise and left the overall issue of slavery unsettled.