Jack Johnson

John Arthur ("Jack") Johnson (March 31, 1878 – June 10, 1946), nicknamed the "Galveston Giant," was an American boxer. At the height of the Jim Crow era, Johnson became the first African American world heavyweight boxing champion (1908–1915). In a documentary about his life, Ken Burns notes, "for more than thirteen years, Jack Johnson was the most famous and the most notorious African-American on Earth. 

Source: wikipedia | Library of Congress, Bain Collection