Allison Meier writes for Hyperallergic on the hand-drawn, recently digitized data visualizations produced by W. E. B. DuBois (in collaboration with others) to demonstrate the size and scope of black life in America at the turn of the 20th century. These sociological charts cover population percentages, property ownership, chosen fields of study and professions by black people leading up to Paris’s Exposition Universelle of 1900.