The five greatest slave rebellions in the United States.

A report shows too few U.S. high-schoolers know about the Civil Rights movement.

Bayard Rustin, the gay civil rights leader who was kept in the shadows by the Civil Rights movement establishment.

What is Juneteenth and why are 42 states and the District of Columbia celebrating it this year?

As a literary scholar and cultural historian who has spent a lifetime searching out African Americans' lost, forgotten and otherwise unheralded tales, I was honored to serve as a historical consultant on Steve McQueen's "12 Years a Slave," most certainly one of the most vivid and authentic portrayals of slavery ever captured in a feature film.