Dan Gun is the second pattern or tul in the ITF form of the Korean martial art taekwondo . Students learn that the tul represents "the holy legendary founder of Korea in the year 2333 BC." Very unusually for a ITF Taekwondo tul, all the punches in Dan Gun are high section (at eye level), symbolising Dan Gun scaling a mountain. Dan Gunas the legendary founder of the first Korean kingdom (Gojoseon). He is said to be the grandson of heaven, and to have founded the kingdom in 2333 BC.