PBS

It’s an irony that as the world’s population has grown exponentially in the last 500 years – from about half a billion to now seven billion – we are actually closer and more connected. Previous theories of connectivity focused on social connections, the so-called six degrees of separation. But DNA now shows that people are linked through a much shorter chain.

Finding Your Roots Finding Your Roots With Henry Louis Gates, Jr. is a 10-part series in which the Harvard scholar will delve into the genealogy and genetics of famous Americans....

Faces of America is a four-part series in which Harvard scholar Henry Louis Gates, Jr. uses genealogy and genetics to explore the family histories of 12 renowned Americans in an...

Faces of America is a four-part series in which Harvard scholar Henry Louis Gates, Jr. uses genealogy and genetics to explore the family histories of 12 renowned Americans in an...