W.E.B. Du Bois was the African-American to earn a Ph.D. from Harvard University, and he applied his expertise in the writing of "The Philadelphia Negro: A Social Study" (1899) and "The Souls of Black Folk" (1903).
Du Bois was the best known spokesperson for African-American rights during the first half of the 20th century. He co-founded the National Association for the Advancement of Colored People (NAACP) in 1909.
Much of modern Western politics, artistic thought (architecture, sculpture), scientific thought, theatre, literature and philosophy derives from this period of Greek history.