What I love about the stories of the Great Migration is that this is not ancient history; this is living history. Most people of color can find someone in their own family who had experienced a migration of some kind, knowing the sense of dislocation, longing and fortitude.

You must leave this world a better place than it would have been if you had not existed.

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.

[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.

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?

People leave when life becomes untenable where they are.

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.