Explain the compromises which made, kept and then ultimately tore apart the union or united states

The following compromises which made, kept and tore apart the united states:
MADE: Compromise of Missouri 1820 which allowed Missouri to enter as slave state but preserved the balance between North and South by carving free soil Maine out of Massachusetts and keeping out slavery from territories developed in Louisiana purchase north of 36 degrees.

KEPT: Compromise of 1850 which the US had gained land and hard to figure out how divide between the North and South and it permitted California to be a free state. It opened New Mexico and Utah to popular sovereignty and ended slave trade in Washington D.C. and presents the more severe fugitive slave law which oblige northerners to capture runaway slaves who looked to be slaves and return them to the south. Widely disparate by both north and south and temporarily united as the nation.

TORE APART: Compromise of 1877 which solved the main issue of 1876 election and finished reconstruction that allowable an agreement that allowed Hayes to become president in interchange for the elimination of all republican troops from the south. The south was gone alone which qualified it to stop African Americans from voting.