Slave trade

From Real Life Villains Wiki

Slave trade is the action of having people imported from one location to another so that they will be forced into slavery. It was common in Egypt during the reign of Pharoah Seti I and later his son. It was also common during World War II in concentration camps and in the USA and England during the 17th-18th century. It is even common today with Human trafficking where trafficked humans are often sold as sex slaves.