General Choi Hong Hi (Nov. 1918 - Jun. 2002) founded Taekwon-Do on the 11th April 1955. On the 22nd March 1966, General Choi created the International Taekwon-Do Federation (ITF) and became its president, providing him with the opportunity to share Taekwon-Do with students throughout the world.
Having studied Taek Kyon and Shotokan karate while in Japan, General Choi was able to apply scientific principles, such as Newton's Laws, to elements from both of these ancient arts in his development of the more modern art of Taekwon-Do. This application of physics can be clearly seen in the sine-wave motion carried out by practitioners of Taekwon-Do as they perform various techniques and it is this sine-wave that provides the mass and acceleration needed to generate the extreme force Taekwon-Do movements generate.
ITF Taekwon-Do, as presented by General Choi Hong Hi, is in a constant state of evolution. The General believed that any objective that is perceived to have reached its objectives is likely to lose momentum, stagnate and die. The evolution that Taekwon-Do is undergoing is the reason it differs greatly from other martial arts. No other martial art is so advanced with regard to the sophistication and effectiveness of its technique and the overall physical fitness it imparts to its practitioners.