All of the guests on 'Faces of America' were deeply moved by what we revealed about their ancestry. We were able to trace the ancestry of Native American writer Louise Erdrich back to 438 A.D. We found that Queen Noor is descended from royalty, and that's before she married King Hussein of Jordan.

Like the amazing story of Anthony Johnson. This man was a slave, then became free, accumulated 250 acres, and even had his own slave, a black man who took him to court in Virginia in 1654.That man argued that he should be freed like an indentured servant. But Johnson, who we believe was a pure African from Angola, said, "No way, you're my slave." And the court agreed.

There's a boom in genealogy now. With ancestry.com and other sites digitizing so many of the records, you can now find things in a few minutes that used to take months.

Because Lincoln is so closely identified with what it is to be American, everyone wants to claim him, to rewrite his story to satisfy their own particular needs.

I think that is what we do by preserving and telling our stories. If you don't tell your stories, other people will tell their story about you. It's important that we nurture and protect these memories. Things change. Existence means change. So, the kind of precious memories about being black for my generation won't exist for my kids' and grandkids' generations unless we preserve them through fiction, through film, through comic books, and every other form of media we can possibly utilize to perpetuate the story of the great African-American people.

It's fascinating how life works.

I try to be sensitive, but the atmosphere I create is very supportive. One overriding premise of the series is that guilt is not heritable. It's good to know about them, but you are not responsible for them. You don't have to apologize for them. It's a process of knowing, and the more you know, the richer the sense of yourself. The firmer your foundation as a human being is