In Lower Manhattan, people in suits pass by a green space with a modest stone monument on their way to the city’s big courthouses. They rarely stop to notice the African Burial Ground National Monument, marking the historic site where more than 15,000 Africans were buried when the city banned slave burials in church cemeteries.
The burial ground was discovered during a construction project in 1991 and was declared a National Historic Landmark in 1993. Yet it took more than a decade of political ...