It was the first agreement for self-government to be created and enforced in America.
The industrial Revolution created a demand among American and European business men, and consequently politicians, for new markets.
Thx 4 giving us all the answer! :)
Just 4 future reference tho, you're supposed to post just a question and other people will answer it for you or you can answer someone else's question and let them know the answers. Then other people can get them from there. But since u did post it this way, I'm typing this as an answer instead of just a comment because if ur question doesn't have any answers it won't show up when people search the question.
Thanks again & enjoy ur day!! :D
From 1850 to 1860 was mostly ideological disagrreeance. With the new territories coming in like Texas or California the south wanted slavery and agricultural spread the North wanted to spread industry and "freedom" so to fix this congress came up with a compromise called the Missouri Compromise stating for every Slave state there will be a Free state. But to answer with simplicity it was most ideological disagrreeance between the two regions.