How did the missouri compromise impact the expansion of slavery into the territories?

The Missouri Compromise was an agreement arranged in 1820 between the northern and southern states. It consisted in granting the state of Missouri a slave status in exchange for the consent of the southern states that the western border of slavery would run along the 36° 30' parallel, whereas the border between free and slave states in the East of the continent was drawn along the Mason-Dixon Line and the Ohio River. In addition, a new state - Maine - was separated from Massachusetts to maintain a balance of power in the Senate between slave states and non-slavery states.

major cities in delaware colony included wilmington and georgetown. major towns in new jersey colony included trenton and princeton. major towns in pennsylvania colony included philadelphia, lancaster, and york. major industry in the middle colonies included farming, forest and timber, coal, furs and iron ore.