Originally, John Kennedy was going to come speak, and then Lyndon Johnson. Because it was October of '62, neither made it because of the Cuban missile crisis.

I discovered in writing the biography of Bill Clinton that it is actually easier to write a biography of someone who is dead. Although you can't interview them, you have a fuller perspective on their whole life after they're gone and people are more willing to talk about them.

It was so crucial to the Civil Rights Movement that on June 23, 1963, Martin Luther King came to town, walked down Woodward Avenue with more than 100,000 people and delivered the first major public iteration of his "I Have A Dream" speech, two months before he did it in Washington.

And all of the big shots of the car industry are there, strutting their stuff. And that year, they're feeling especially good because cars were selling more than ever before.

Detroit was an exaggeration of what was going on across the country. You could see the divisions, even within the Civil Rights Movement of that period. At the same time that Martin Luther King was talking about his dream, Malcolm X gave his most famous address in Detroit during that same period, "The Message To The Grass Roots," dismissing the notion of integration.

You also had in Detroit that summer, an early variation of Ferguson. A black prostitute was shot in the back by police. And all of the efforts that a very progressive police chief and mayor of that period had put into trying to restore race relations started to fall apart again, and you could see that unraveling for several years until the riots or rebellion of 1967.

I want my books to last, to stand the test of time, and to do that I focus on the forces that shape the subject - the cultural and sociological geography - to capture them in a way that will explain them no matter what they are doing.