cities became major port cities in the South because of the slave trade are
U.S.state of South Carolina and ColumbiaMajor cities in South Carolina include Columbia, Charleston andMount Pleasant. Other highly populated or dense cities are Greenville, GooseCreek, and Sumter.
Step-by-step explanation:
Columbia is that the capital and the second largest town of the U.S. state of South Carolina, with a population estimate of 134,309.T he city is the seat of Richland County, and a little of the town extends into neighbouring Lexington County. In the seventeenth and eighteenth centuries, African slaves were listed within the Caribbean for syrup, that was created into rum within the American colonies and listed back to the continent for additional slaves. The follow of slavery continued in several countries (illegally) into the twenty-first century.