Historians say more details about the lives of enslaved Africans needs to be taught

The history and legacy of slavery in America are not often taught in great detail. That is what Professor Mary Niall Mitchell, the Midlo Endowed Chair in History at the University of New Orleans, contends. But she told The World's Marco Werman that one trailblazing historian worked for decades to uncover the origins of enslaved Africans in Louisiana and shed light on their lives.