Edited sentence: According to Steven D.After World War II and the liberation of Korea, several Kwans (schools) arose.All taught Japanese-influenced systems.Although the art essentially vanished, some aspects of taekkyeon may have survived through underground teaching and folk custom.As the Japanese colonization established a firm foothold in Korea, the few Koreans who were able to attend Japanese universities were exposed to Okinawan and Japanese martial arts, and some received black belts in these arts.As these arts began to be taught openly by Koreans who had learned it in Japan, they were taught under such names as kongsudo and tangsudo.During the Japanese occupation (1910-1945), the practice of tae-kyon was banned.Koreans in China were also exposed to Chinese martial arts.Most were based on Japanese Karate, most notably Shotokan Karate.The first was the selection of a new, non-Japanese name.The process of Koreanization consisted of three main aspects.The second was the creation of a system of techniques and training which was distinctly different from that of karate, and the third was the attempt to establish t'aegwondo's existence and development within the historical flow of Korean civilization.They included: Chung Do Kwan, Moo Duk Kwan, Jidokwan (or Yun Moo Kwan), Chang Moo Kwan, Han Moo Kwan, Oh Do Kwan, Jung Do Kwan, Kang Duk Won,and Song Moo Kwan.This process of development can be broadly outlined as follows: Japanese karate called kongsudo or tangsudo was introduced to Korea just after liberation from Japan by Koreans who had learned karate in Japan.Upon returning, these Koreans opened karate gymnasiums promoting what they were teaching as karate, much like the process followed by the early Judo instructors.Well after these schools became established, the need to "Koreanize" was felt