kristi williams, a community activist and tour guide, calls this sacred ground. ur you can feel the pain. you can feel the you can even sometimes hear the walk through greenwood.s as you >> alcindor: 100 years ago, greenwood spanned 40bllocks of k-owned business and homes. it was known as "black wall street," one of the most prosperous areas in the country for african americans. >> greenwood had hotels, architects, doctors, attorneys. it was the mecca of black entrepreneurship, black economics.y they actuaeated an economy within an economy. >> alcindor: but starting on may 31, 1921, a white mob killee 00 black residents here and burned much of greenwood to sae ground. the tulsa race me-- as the incident is now known-- ame after allegations tha young black man working as a shoe shiner had assaulted a white woman. the woman later requested charges dropped in the case. massacre was captud in the recent hbo fictional series," wahmen." no arrests were ever made, and insurance companies refused to pay out claims. survived the violerehose who largely buried, through fea