When he felt like it.
Jack Johnson back in 1908.
Jack Johnson was World Champion from 1908 - 1915 but the establishment tried to have a "white heavyweight championship" during that time, but no one took it seriously.
Jack Johnson won the title in 1915, some 50 years before Ali
jack Johnson was the undisputed heavyweight champion from 1905 - 1915.
Former heavyweight champion boxer Jack Johnson died tragically in 1946 in a car accident in North Carolina.
Jack Johnson, in 1908,