At the foot of modern buildings on an anonymous street, a few discreet metal plaques catch the eye. "Grier shoemaker," "Earl real estate" riveted to the ground, they bear the names of Black-owned businesses that once stood there before being destroyed during one of the worst racial massacres in the United States, in 1921. A rare vestige of a neighborhood so prosperous it was called Black Wall Street, the plaques prove that the history of.