 Choi was promoted to major general in 1954.Choi combined elements of Taekkyon and Oh Do Kwan Karate to develop a style of the martial art known as "Taekwondo", his organization spelt it Taekwon-Do, (태권도; 跆拳道), which means "foot, fist, art" or "the way of hand and foot" and it was so named on 11 April 1955.Choi founded the Oh Do Kwan, and held an honorary 4th "dan" ranking in the Chung Do Kwan.