How did even northern states limit the freedoms of blacks even as they decried the expansion of slavery?

Passing laws that limited the movement and freedom of blacks

Explanation:

Even though the whites in the Northern territories viewed slavery as a moral wrong and a stain on the moral fibre of the United States, they did not believe that Black people should be entitled to the same rights as them.

To keep blacks at a certain social level and to limit the amount of blacks in their territories, some states passed laws that restricted the movements of blacks.

States like California and Kansas did it subtly while states like Iowa, Illinois and Indiana banned blacks entirely from their states.

a big wall across the mexican border so no drugs, terrorist, or illegal immigrants can come through : )    

was a long, primarily nonviolent series of events to bring full civil rights and equality under the law to all americans. the era has had a lasting impact on united states society, in its tactics, the increased social and legal acceptance of civil rights, and in its exposure of the prevalence and cost of racism. in the south violence and fraud in southern elections from 1868 to 1876, which had reduced black voter turnout and enabled southern white democrats to regain power in state legislatures across the south