Judo is an unarmed modern Japanese martial art, combat sport, Olympic sport, and the most prominent form of jacket wrestling competed internationally. Judo was created in 1882 by Kanō Jigorō as an eclectic martial art, distinguishing itself from its predecessors due to an emphasis on "randori" instead of kata alongside its removal of striking and weapon training elements. Judo rose to prominence for its dominance over established jujutsu schools in tournaments hosted by the Tokyo Metropolitan Police Department, resulting in its adoption as the department's primary martial art. A judo practitioner is called a "judoka", and the judo uniform is called "judogi".
Keiko Fukuda was a Japanese-American martial artist. She was the highest-ranked female judoka in history, holding the rank of 9th dan from the Kodokan (2006), and 10th dan from USA Judo and from the United States Judo Federation (USJF), and was the last surviving student of Kanō Jigorō, founder of judo. She was a renowned pioneer of women's judo, and in 1972 together with her senpai Masako Noritomi (1913–1982) was one of the first two women promoted to 6th dan. In 2006, the Kodokan promoted Fukuda to 9th dan, making her the first woman to hold this rank from any recognized judo organization. She is also the first and, so far, only woman to have been promoted to 10th dan in judo, which occurred in 2011. After completing her formal education in Japan, Fukuda visited the United States to teach in the 1950s and 1960s, and eventually settled there. She continued to teach her art in the San Francisco Bay Area until her death in 2013.
The Budokwai (The Way of Knighthood Society) (武道会, Budōkai, Society of the Martial Way) in London is the oldest Japanese martial arts club in Europe. It was founded in 1918 by Gunji Koizumi and initially offered tuition in jujutsu, kendo, and other Japanese martial arts. It was the first judo club in Europe.
The Kodokan Judo Institute (公益財団法人講道館), or Kōdōkan (講道館), is the headquarters of the worldwide judo community. The kōdōkan was founded in 1882 by Kanō Jigorō, the founder of judo, and is now an eight-story building in Tokyo.
Minoru Mochizuki was a Japanese martial artist who founded the dojo Yoseikan. He was a 10th dan in Aikido, 9th dan in Jujutsu, 8th dan in Iaido, 8th dan in Judo, 8th dan in Kobudo, 5th dan in Kendo, 5th dan in Karate, and a 5th dan in Jojutsu.
Mitsuyo Maeda naturalized as Otávio Maeda, was a Japanese-born Brazilian judōka and prizefighter in no holds barred competitions. He was known as Count Combat or Conde Koma in Spanish and Portuguese, a nickname he picked up in Spain in 1908. Along with Antônio Soshihiro Satake, he pioneered judo in Brazil, the United Kingdom, and other countries.
Gunji Koizumi, known affectionately by colleagues as G.K., was a Japanese master of judo who introduced this martial art to the United Kingdom, and came to be known as the 'Father of British Judo.' He was the founder of the Budokwai, a pioneering Japanese martial arts society in England. Koizumi helped establish the British Judo Association, and founded the European Judo Union. He held the rank of 8th dan in judo. Koizumi's apparent suicide in 1965 shocked the worldwide judo community.
Charles Stuart William Palmer was a British martial artist. Palmer was a judo instructor, President of the Budokwai, President of the British Judo Association (1961–1985), President of the International Judo Federation (1965–1979) and Chairman of the British Olympic Association (1983–1988). Palmer was a judoka who attained the sport's highest rank of 10th dan black belt.
The Seattle Dojo is located at 1510 S. Washington in the Squire Park neighborhood of Seattle, Washington. It is the oldest judo dojo in the continental United States, having been founded sometime before 1907 in what is today the International District.
Yasuhiro Yamashita is a Japanese judoka. He currently works as an instructor or advisor for numerous organizations, including Tokai University, the International Judo Federation, and the All Japan Judo Federation. He retired from competitive judo on 17 June 1985 after a remarkable career where he won five gold medals in international competitions and marked 203 consecutive victories until his retirement where he went undefeated his entire career against non-Japanese wrestlers. He received the Japanese National Prize of Honor on 9 October 1984. He is considered by many to be the greatest judoka ever.
Kanō Jigorō was a Japanese judoka, educator, politician, and the founder of judo. Along with ju-jutsu, judo was one of the first Japanese martial arts to gain widespread international recognition, and the first to become an official Olympic sport. Pedagogical innovations attributed to Kanō include the use of black and white belts, and the introduction of dan ranking to show the relative ranking among members of a martial art style. Well-known mottoes attributed to Kanō include "maximum efficiency minimal effort" and "mutual welfare and benefit".
Yamashita Yoshitsugu, also known as Yamashita Yoshiaki, was a Japanese judoka. He was the first person to have been awarded 10th degree red belt (jūdan) rank in Kodokan judo, although posthumously. He was also one of the Four Guardians of the Kodokan, and a pioneer of judo in the United States.
Mikinosuke Kawaishi was a Japanese master of jujutsu and judo who achieved the rank of 7th Dan. He led the development of Judo in France, with Shozo Awazu, and much of Europe and is credited with introducing the colored belt system for differentiating early grades. However, written accounts from the archives of London's Budokwai judo club, founded in 1918, record the use of colored judo belts at the 1926 9th annual Budokwai Display, and a list of ranked colored judokas appears in the Budokwai Committee Minutes of June 1927. Kawaishi visited London and the Budokwai in 1928, and was probably inspired to bring the colored belt system to France. The Fédération Française posthumously awarded him 10th Dan in judo and jujutsu.
Trevor Pryce Leggett[a] was a British judo teacher, author, translator, and head of the BBC's Japanese Service for 24 years. He was one of the first Europeans to study martial arts in Japan. Leggett served in the Ministry of Information during World War II. After the war, he taught judo at the Budokwai and worked in Japanese language services at the BBC. He held the title of Shihan, and the rank of 6th dan in judo from the Kodokan. Leggett helped introduce Japanese culture to the United Kingdom, and was honoured for this by being inducted into Japan's Order of the Sacred Treasure in 1984. He also produced many works on Eastern philosophy.
Tomita Tsunejirō, born Yamada Tsunejirō, was the earliest disciple of judo. His name appears in the first line of the enrollment book of the Kōdōkan. Tomita, together with Saigō Shirō, became the first in the history of judo to be awarded the rank of Shodan by the founder of judo, Kanō Jigorō, who established the ranking system that is now commonly used in various martial arts around the world. Tomita was known as one of the "Four Kings" of Kōdōkan judo for his victorious efforts in competing against jujitsu schools. He was awarded 7th dan upon his death on January 13, 1937.
In judo, improvement and understanding of the art is denoted by a system of rankings split into kyū and dan grades. These are indicated with various systems of coloured belts, with the black belt indicating a practitioner who has attained a certain level of competence.
Shiro Saigo was one of the earliest disciples of Judo. Saigo, together with Tsunejiro Tomita, became first in history of judo to be awarded Shodan by the founder of judo Jigoro Kano, who established the kyu-dan ranking system. He was one of the Kōdōkan Shitennō or Four Guardians of the Kodokan along with Yoshitsugu Yamashita, Sakujiro Yokoyama, and Tsunejiro Tomita.
Yokoyama Sakujirō, was one of the earliest disciples of Kanō Jigorō. He was part of the Kōdōkan Shitennō or Four Guardians of the Kodokan along with Yoshitsugu Yamashita, Tsunejirō Tomita, and Shirō Saigō.
There are three main organizations that govern judo in the United States. The United States Judo Federation (USJF) started in 1952. The concentration of the USJF is on the east and west coasts, but also in Chicago and Hawaii. The United States Judo Association (USJA) was founded in 1968 as an extension of the Armed Forces Judo Association (AFJA) when it broke off from the USJF to focus on a more Americanized structure. The USJA is mostly concentrated in California and Florida, but also popular in the Midwest and Southeast. The United States Judo, Inc. (USJI), doing business as USA Judo, was founded in 1978 and has its headquarters in Colorado Springs, Colorado. It is slightly larger than the USJA and USJF, as they have crossover members from both of these organizations, since they are the designated national governing body of the USOC for the Olympics.