Answer: During the period of 1820-1861 the north and south debated on issues that dealt with slavery and unbalance power, in order to reduce sectional tension between these two states, the Missouri Compromise, Compromise of 1850, and the Kansas-Nebraska Act were proposed.
The North and South both had opposite opinions about slavery, The South favored slavery because of there agricultural based economy which they needed slaves to attend to their harvests and crops, the North was against slavery because they were an industrialized nation they had no need for slavery.
In 1854 another problem arose which resulted in Congress passing the Kansas-Nebraska Act which repealed the Missouri Compromise, this act was introduced by Stephen A. Douglas a chairman of Committee on Territories, this act allowed the people of Kansas and Nebraska to choose rather they wanted slavery in their boundary or not through the power of popular sovereignty, the Pro-slavery settlers won the election but were charged with accusations that they cheated, in order to make sure that the vote was right they ordered a re-election but the Pro-slavery refused and the refusal resulted into a battle
Explanation: Hope the explanation above was helpful