So many people of color who made major contributions to American history have been trapped in the purgatory of history.

I find that people today tend to use them interchangeably. I use African-American, because I teach African Studies as well as African-American Studies, so it's easy, neat and convenient. But sometimes, when you're in a barber shop, somebody'll say, "Did you see what that Negro did?" A lot of people slip in and out of different terms effortlessly, and I don't think the thought police should be on patrol.

The second thing that happened is, DNA analysis is much more sophisticated. All you have to do now is spit in a test tube and you find out all kind of things in six weeks - where they are from in Africa or Europe. You can prove or disprove the fundamental African-American myth that you descended from a Cherokee great, great grandmother.

Since the day Martin Luther King was killed, the black middle classes have almost quadrupled, but the percentage of black children living on or below the poverty line is almost the same.

I give a speech to the black freshmen at Harvard each year, and I say, "You can like Mozart and ice hockey..." - and then I used to say "golf," but Tiger took over golf! - "and Picasso and still be as black as the ace of spades."

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.

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.