International slave trade was not banned until 1808
Explanation:
African Captives who arrives as slaves to Jamestown in the early sixteenth century and after which slave labor was prevalent continuously until the American Revolution. During the declaration independence around four million captives were bought as slaves by Americans.
Slave trade was not a significant factor in the economy of union states, they fought for the abolition of slavery. By 1808, a ban on international slave trade was ruled. But the slave trade within the southern states could not be abolished.
