Evaluate the extent to which regional differences about slavery contributed to political tensions in the period from 1830 to 1861. I did to do the intro paragraph the thesis has to be in the middle :/

What did nativists think about chinatowns in the late 1800s?

Which of these innovations led to increased production in american factories in the early 1800s? a. the use of interchangeable parts b. the construction of canals c. the invention of the mechanical reaper d. the availability of electricity

Brainliesttt !me : ) describe the responses to terrorism in the united states.