Battling Siki (1887-1925) was once one of the four or five most recognizable black men in the world, and was written about in detail by such figures as Ring Lardner and his son John, Damon Runyon, and Westbrook Pegler. One can find his legacy in the name of a popular rock group, one of Che Guevara's lieutenants, a character on Xena, Warrior Princess, and the Battling Siki Hotel in the fighter's homeland, Senegal. Peter Benson's biography of the first...