The compromise of 1850, approved by both the northern and southern states, was proposed by

C. Henry Clay

Henry Clay proposed the series of resolutions known as the Compromise of 1850, it was meant to avert a crisis between the North and the South. Obviously, it didn't really work, considering the Civil War.

would not cooperate with each other voluntarily.

in all honesty, it really hasn't. except that hitler killed himself.