There haven't been fundamental structural changes in America. There's been a very important symbolic change and that is the election of Barack Obama. But the only black people who truly live in a post-racial world in America all live in a very nice house on 1600 Pennsylvania Avenue.

The African American's relationship to Africa has long been ambivalent, at least since the early nineteenth century, when 3,000 black men crowded into Bishop Richard Allen's African Methodist Episcopal Church in Philadelphia to protest noisily a plan to recolonize free blacks in Africa.

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.

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.

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.

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

Kansas City Lightning succeeds as few biographies of jazz musicians have. . . This book is a magnificent achievement; I could hardly put it down.