What act banned the expansion of slavery into territory north and west of the ohio river?
a. articles of confederation

b. northwest ordinance

c. declaration of independence

d. three­fifths compromise

the  wilmot proviso  was designed to eliminate  slavery  within the  landacquired as a result of the mexican war (1846-48). fearing the addition of a pro-slave territory, pennsylvania congressman david  wilmot proposedhis amendment to the bill.