Internet, le 05-05-2005, http://en.wikipedia.org
Information trouvée : William Edward Burghardt DuBois (February 23, 1868 August 27, 1963) was an African-American
civil rights activist, sociologist, freemason, and scholar.
The souls of black folk / W.E.B. Du Bois, cop. 1994
WW, États-Unis, 1607-1985