In 1882 Jigoro Kano (1860-1938) founded Kodokan Judo at Eishoji Temple in Tokyo. It was the culmination of a lifelong devotion to the jujutsu of the past, which he reorganized while taking great care to retain its classical traditions. Historically, martial arts were practiced only by the elite in Japan. Kano, a renowned educator as well as a sportsman, is credited with popularizing the martial arts, and in particular, judo, among people in all levels of society.

When he was young, Kano studied jujutsu, a martial art practiced in Japan since feudal times, which involved throwing, hitting,...