How was the question of slave labor in america primarily seen in the 1850’s?

Wha industry did the refrigerated rail car impact the most

Where did the deafeted chinese nationalist flee to and form a new nation?

Why were some framers in favor of incorporating the bill of rights? a. because then the bill of rights would cover both state and federal law.b. because then the bill of rights would protect both citizens and non citizens.c. because the the framers would only have to follow the federal laws.d. because the the framers would only have to follow their state's laws