Black belt (martial arts) of ability when using these tactics and are sometimes referred to as McDojos or belt factories. In some Japanese schools, after obtaining a black belt the student also begins to instruct, and may be referred to as a senpai (senior student) or sensei (teacher). In others, a black belt student should not be called sensei until they are sandan (third degree black belt), or the titles kyosa or sabom in Korean martial arts as second degree or higher, as this denotes a greater degree of experience and a sensei must have this and grasp of what is involved in teaching
Korean martial arts ancient Korean martial arts, as well as martial arts from other nations. Although the name "Tang Soo Do" had been used before by the likes of Master Wong Kuk Lee, it is Hwang Kee who is usually credited as the creator of what is today known as Tang Soo Do, or Moo Duk Kwan Tang Soo Do, the school from which all others come from. Hwang Kee witnessed as a child how a man defended himself from several assailants using kicking techniques, he most likely was using Taekkyon. He followed this man home and watched him train from a distance.