1946: Chi-Do-Kwan. Founded by Pyang, Yon Kue (aka. Yun-Gae Byang, or Yun-Kwei Byong).

1946: Song-Moo-Kwan. The Song-moo-kwan (pine tree training hall or the ever youthful house of martial arts training) was founded by Ro Byung Jik in Kae Song. Its power and customs were the weakest among the first big five Kwans.
 

Beginning in 1936, Ro studied Shotokan karate in Japan under Shotokan founder, Gichin Funakoshi, along with chung do kwan founder, Lee, Won Kuk. Song moo kwan was founded in Kae Song City, Kyung Ki Providence, Korea by Ro, Byung Jik on March 11, 1944 when Ro returned to Korea and taught youngsters karate as a hobby at an archery place, the Kwan Duk Jung in Kaesong, which was quickly forced to close due to the repressive political conditions.

On May 2,1946, Ro reopened his school in Dong Hung Dong, Kae Sung City. On June 25, 1950, Song Moo Kwan, again closed its doors due to the onset of the Korean war,as did most of the other kwans. On September 20, 1953 the school was reestablished in Ah Hyung Dong, Mapo Gu, Seoul.

Ro Byung Jik selected his school's name, Song Moo Kwan, since 'Song' meant pine tree, which meant green and a long life. Also, Song was one of the Koryo capital city name, Song Do. Song was also borrowed from the Song Do Kwan (Shotokan) when he learned karate under Funakoshi while studying abroad.

Ro's practice sessions started one hour earlier with warm up exercises consisting of lifting weights and practicing on the Kwon Go (makiwara). He was known as a powerful puncher and kicker from his students. Ro had students punch the Kwon Go at least 100 times and then he started the real practice. If students received the 4th Guep or higher, he let them spar. Like any other dojang, he was known to let his students practice in cold weather during winter, and in the hot weather during summer.

Ro Kwan Jang's student, Lee Young Sup, 2nd Kwan Jang, reflects: "Every six months, there was testing for promotion. Mainly one step sparring, three step sparring, free sparring, and forms were used to decide promotions. But free sparring was for 4th guep and higher, and 1st Dan required breaking a board. If these rules were broken, the Kwan Jang was very upset."

The first Song-moo-kwan black belts were: Lee, Hwa Soon; Lee, Young Sup; Kim, Hong Bin; Han, Sang Min; Song, Tae Hak; Lee, Hwi Jin; Jo, Kyu Chang; Hong, Young Chang; and Kang, Won Sik.

The first Kwan Jang was Ro Byung Jick, the second was Lee Young Sup, and the third was Kang Won Sik.

1953: Oh-Do-Kwan. Founded by General Choi Hong Hi at the 3rd Army Yong Dae Ri base.

Oh Do Kwan original members that were mostly former members of the Chung Do Kwan; they were were Nam Tae Hi, Han Cha Kyo, Woo Jong Rim, Ko Jae Chun, Kim Suk Kyu, Kwak Kuen Suk, and others. Hyun Jong Myun was an instructor. After Hyun Jong Myun taught for more than 10 years, he became the Kwan Jang. There is a rumor that this relates to Choi, who became the Chung Do Kwan's Honorary Kwan Jang. Hyun Jong Myun was the second Kwan Jang of the Oh Do Kwan, Kwak Byung Oh (Jak Ko) was the third and Baek Joon Ki was the third.

Nam had registered at the Chung Do Kwan right after Independence Day. After he learned Tang Soo Do from Lee Won Kuk, he taught Tang Soo Do at the Military Signal School in 1947. A handsome man with excellent administrative skills and he had great Tang Soo Do skills. When he met General Choi in Chejudo, it changed his life.

Nam Tae Hi made a big contribution to the Oh Do Kwan. After ROK President Rhee Syng Man sponsored General Choi, the Oh Do Kwan grew rapidly. Choi wanted to teach Tang Soo Do to everyone in the military. After the Vietnam War broke out in the early 1960's, General Choi began sending military Taekwondo instructors to Vietnam in December 1962.

Oh Do Kwan only approved Chung Do Kwan dan ranks, so dan ranks from other kwans were not approved; they were called "Civilian Dan rank." New recruits with Taekwondo dan rank from other kwans had to pass a test to receive dan rank in the military. This caused complications between the Oh Do Kwan and other kwans, led to discrimination against civilian dojangs, and spread the Oh Do Kwan's reputation.

After Choi Hong Hi founded the International Taekwondo Federation, he deviated from the KTA, which weakened the Oh Do Kwan.