What did the Missouri Compromise of 1820 do?
A. It abolished slavery in Mexico.
It abolished slavery in Mexico.
B. It made slavery illegal in new states north of the 36th parallel.
It made slavery illegal in new states north of the 36th parallel.
C. It annexed Texas as part of the United States.
It annexed Texas as part of the United States.
D. It took lands from Mexico in the Southwest.