In August of 1619, a ship came to Point Comfort, in the English colony of Virginia. Over 20 enslaved African people, brought from what is now Angola, were on that ship. Once the ship landed, the colonists bought them as their property.
This sale ushered in an era of American slavery whose effects still endure today.
400 years later, the remnants of a once-formal system of racial hierarchy still play a defining role in the U.S.