New dates for a mastodon bone pierced by a projectile point confirm that it is 13,800 years old. The bone, discovered in the 1970s in Washington State, contradicts the “Clovis-first model,” which suggests that humans first crossed into the Americas from Siberia some 13,000 years ago. “Humans clearly had a role in these extinctions and by […]

This video tells of the excavation of the slave village in Maryland where Frederick Douglass once lived as a child. The village, called The Long Green, was part of a plantation known as the Wye House Farm, which has been owned by the same family for 11 generations. A cobbled road that may have been […]