Jack London character is based on Hawaiian leper Kaluaikoolau, who in 1893 revolted and resisted capture from forces of the Provisional Government of Hawaii in the Kalalau Valley. An amateur boxer and avid boxing fan, London reported on the 1910 Johnson–Jeffries fight, in which the black boxer Jack Johnson vanquished Jim Jeffries, known as the "Great White Hope". In 1908, London had reported on an earlier fight of Johnson's, contrasting the black boxer's coolness and intellectual style, with the apelike appearance and fighting style of his Canadian opponent, Tommy Burns, 'what . . . [won] on Saturday was bigness, coolness, quickness, cleverness,
Anti-miscegenation laws in the United States Johnson had become the first black boxing world champion, having beaten Tommy Burns. After his victory, the search was on for a white boxer, a "Great White Hope", to beat Johnson. Those hopes were dashed in 1910, when Johnson beat former world champion Jim Jeffries. This victory ignited race riots all over America as frustrated whites attacked celebrating African Americans. Johnson's marriages to and affairs with white women further infuriated white Americans. In his speech introducing his bill before the United States Congress, Roddenbery compared the marriage of Johnson and Cameron to the enslavement of white women, and warned of