lawrencemma2165 lawrencemma2165 Today at 10:01 AM History Answered In 1808, what legal changes were made regarding the practice of slavery in the United States? a. All states north of the Mason-Dixon Line outlawed slavery. b. Congress passed a ban on the importation of enslaved people into the United States. c. Gradual emancipation laws passed in Virginia and Maryland. d. Public slave auctions in American cities became illegal.