There were colored and white waiting rooms everywhere, from doctor's offices to the bus stations, as people may already know. But there were actually colored windows at the post office in, for example, Pensacola, Florida. And there were white and colored telephone booths in Oklahoma. And there were separate windows where white people and black people would go to get their license plates in Indianola, Mississippi. And there were even separate tellers to make your deposits at the First National Bank in Atlanta.

And in some ways, to me, that's one of the inspiring and powerful things about the Great Migration itself. There was no leader, there was no one person who set the date who said, 'On this date, people will leave the South.' They left on their own accord for as many reasons as there are people who left. They made a choice that they were not going to live under the system into which they were born anymore and in some ways, it was the first step that the nation's servant class ever took without asking.

[The Great Migration] had such an effect on almost every aspect of our lives - from the music that we listen to to the politics of our country to the ways the cities even look and feel.

People leave when life becomes untenable where they are.

There are certain things that we take for granted that simply would not have existed without the great migration. Motown, for example, would not have existed - it simply would not, because Berry Gordy, the founder of it, his parents had migrated from Georgia to Detroit where he founded Motown, and where did he get his talent?

I mean my mother migrated from Georgia -Rome, Georgia, to Washington, D.C., where she then met my father, who was a Tuskegee Airman who was from Southern Virginia. They migrated to Washington and I wouldn't even exist if it were not for that migration. And I brought her back to Georgia, both my parents, actually.

My parents absolutely did not think of themselves as part of the Great Migration. They knew they were part of a great wave. No one really talked about it in those terms or gave it a name.