Jack Johnson was born John Arthur Johnson on March 31, 1878, in Galveston, Texas.
Johnson boxed professionally from 1897 to 1928, and boxed in exhibition matches until 1945. During his boxing career, Jack Johnson fought 114 fights, winning 80 matches, 45 by knockouts. He first won the heavyweight title by knocking out champion Tommy Burns in 1908, and held on that title until April 5, 1915. Johnson was knocked out by Jess Willard in the 26th round during the World Championship fight in Havana.
Jack Johnson received bad publicity by the press for his two marriages, both to Caucasian women. Due to the racist attitudes of the times, interracial marriages were prohibited ... inventors.about.com