The correct answer is Missouri
Missouri Became the 24th State. Under the Missouri Compromise of 1820.
To maintain stability, the Missouri Compromise was signed in 1820. This agreement delimited, by the parallel 36 ° 30 ', the slave territories and the free territories, regulating the creation of the new members of the Union. crisis because it disobeyed the Missouri Compromise. Utah and New Mexico also called for their annexation to the Union as neutral states, while the abolitionist campaign in the United States was growing.
With these questions, the Commitment lost its meaning and in 1854 Congress approved the entry of new States, with the right to decide on slavery in their territories. The tension between slavery and abolitionists increased, culminating in the armed confrontation between North and South known as the Civil War.