Grandmaster Kim Bok Man is considered the "Grandfather of modern Taekwondo". He was head of the Korean Taekwondo show team from 1955 to 1966, during which he established the first Taekwondo Associations in 11 countries, leading to the formation of the Taekwondo International Association. After retiring from the army in 1962 where he taught combat techniques, Kim Bok Man devoted his life to spreading Taekwondo in Asia and Europe by establishing numerous national associations. However, he later left the Taekwondo International Association due to conflicts and formed his own style called World Practical Taekwondo Federation, which he later renamed World Chunkuhndo Federation.