Slavery would be prohibited in the Louisiana Territory was not part of the Missouri Compromise.
Explanation:
Acquisition of Louisiana nearly doubled the size of early America. This land acquisition provided space for settlers and enormous economic opportunities in agriculture and raw materials. The new country also sparked much debate among Congress over what would be allowed in any new state that would join the Union, especially the institution of slavery.
The Missouri Compromise of 1820 was very important for various reasons. The compromise itself resolved, for the time being, the dispute over where slavery should and could exist in recently acquired Louisiana territory.
He urged that slavery did not exist above the 36 ° 30 'longitude.
The exception was Missouri, which entered the Union in 1820 as a slave state under compromise.
In addition to Missouri, Maine also entered the Union as a free state (formerly part of Massachusetts) to balance the number of free and slave states in the nation. This seeks to achieve equality of slaves and free states, together with a balance in Congress.