Modern history of East Asian martial arts
Taekwondo was developed from karate for use in the Republic of Korea Armed Forces from 1954. For this purpose, karate terminology needed to be "nationalized". The name "taekwondo" is due to shotokan practitioner and army general Choi Hong Hi. After the Korean War, Taekwondo was further developed into a purely sportive discipline, since 1973 overseen by the World Taekwondo Federation. 
During 1964-1966, Choi Hong Hi continued to promote taekwondo, working to put together a world-class exhibition team. Taekwondo's emphasis on jumping and flying kicks dates to this period. While taekwondo was based off karate, the structural changes made in the 1950s and 1960s were significant, and it cannot now be considered a branch of karate, but is a standalone modern martial art. Taekwondo was presented at the Summer Olympics as a demonstration sport in 1988 and 1992, and became an official Olympic discipline in 2000.
Original masters of taekwondo
1972 Opened the first TAEKWON-DO School in Montreal.
1973 Appointed as the first Chairman of the Technical Committee of the International TAEKWON-DO Federation. Promoted to 7 Dan black belt. Organized the World's First TAEKWON-DO Masters Demonstration, at the Montreal Forum where 27 Masters attended.
1974 Organized the World's First TAEKWON-DO Championships held at the Montreal Forum. 24 countries participated.
1975 Invented the stretching machine “the Stretchersizer”
1976 Invited as the Instructor, of the European Instructors course held in Glasgow U K.
1977 Studied Bio Physical Education at Concordia University
1978 Moved to New Westminster BC
1979 Trained 21 TAEKWON-DO instructors in Argentina including Dr Hector Marano and Pablo Trajtenberg, and with an unprecedented move, promoted several of them directly from 2nd Dan to 4th Dan Black Belts.
1981 Promoted to 8th Dan Black Belt. Elected as the Secretary General of the ITF. Appointed as the Chairman of the Merging Committee for the ITF and WTF. As Chairman of the merging committee, negotiated the merging agreement between the ITF and the WTF, that was submitted to the International Olympic Committee by Un Yong Kim, in order to have Tae Kwon- Do accepted as an Olympic sport. 
1982 Quietly resigned from the ITF and all Tae Kwon do duties, due to opposition to General Choi’s controversial political statements made in North Korea 
1991 Promoted to 9th Dan Black Belt 
2015 JC KIM`S two sons Rich Kim and Ed Kim are following in his footsteps, are currently and have been for over 30 years, teaching Tae Kwon-Do in Surrey, BC. In 1979, ranked 7th "dan", he taught and demonstrated in Argentina along with C. K. Choi, J. T. Park, and K. H. Rhee. A letter by Kim published in the July 1985 issue of "Black Belt" magazine lists his title at the time as President of the 'World Tukido Council.' He is based in Vancouver, Canada.