Those of us with this ancient compulsion to tell stories sometimes start with a single kernel of something.
My mother worked in the white world, but I lived almost exclusively in a black world. I don't think I had ever seen a white teacher until I got to high school.
Perhaps if I knew I would be stranded on an island with but one book, I would choose the Bible. For no religious reason whatsoever, but because of the varieties of stories, which might be useful as the days pass.
It just so happens that I was born and raised in Washington. Had I been born in Chicago or San Antonio, the streets and places would have figured into whatever I wrote. Just so happens that it's Washington, D.C.
Something happened during the 1980s - perhaps the political climate of that time - that caused me to ask how a people would become part of a system that oppresses their own people.
When you grow up with a mother who has to wash dishes and clean hotel rooms, you know the importance of having a job, and you can't be without a job for any length of time, or you will be without anything.