When war broke out, black Americans fought in segregated units to serve their country. The breath of freedom they experienced in Europe flamed the fight for equality when they returned home.
Black politicians throughout US history have struggled to overcome deep, negative stereotypes held against them by white Americans. Obama succeeded at the highest level. Here's how.
Protests erupted against the killing of black men by police in Tulsa and Charlotte. This roundup looks at research on racial violence and explains where there might be potential solutions.
A macho culture prevails in police departments in America. The recent killing of Philando Castile serves as one example of the way racial bias and police officer machismo work together.