I want to be black, to know black, to luxuriate in whatever I might be calling blackness at any particular time, but to do so in order to come out on the other side, to experience a humanity that is neither colorless nor reducible to color.

So when you do your family tree and Margaret Cho does hers, and... Wanda Sykes and John Legend... we're adding to the database that scholars can then draw from to generalize about the complexity of the American experience. And that's the contribution that family trees make to broader scholarship.

We have to stop making excuses. One of the things that I'm careful to show is the horrendous effects of institutional and structural racism, but in the end, you can't wait for white man or a Black man to come riding in on a white horse to save you. We have to save ourselves, and that's the lesson of "The African Americans."

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.

I knew that there were black people in Africa, of course, unfortunately because of movies such as 'Tarzan.'

My producers and I worked with these consultants and came up with seventy [stories] which we think are exemplary of the larger arc of African-American history between 1513 and 2013. We covered half a millennium, and it's amazing.

Patriotism is best exemplified through auto-critique. When you're willing to stand up within the group and say, 'It is wrong for Black people to be anti-Semitic,' or 'It is wrong for America to discriminate against persons of African descent and made them slaves and based its wealth upon free labor,' it's crucial to say that.