An anonymous reader writes to tell us LiveScience is reporting that Archaeologists may have found the oldest remains of slaves
brought from Africa to the New World. From the article: "The African origin of the slaves was determined by studying a chemical in their tooth enamel that reveals plant and rock types of their native land. The chemical enters the body through the food chain as nutrients pass from bedrock through soil and water to plants and animals. It is an indelible signature of birthplace, the researchers said, because it can be directly linked to the bedrock of specific locales."