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
Japanese martial arts or spiritual) of the individual practitioner, with varying degrees of emphasis on the practical application of the martial art for either sport or self-defence purposes. The following subsections represent not individual schools of martial arts, but rather generic "types" of martial arts. These are generally distinguishable on the basis of their training methodology and equipment, though wide variation still exists within each. , considered by many to be Japan's national sport, has its origins in the distant past. The earliest written records of Japan, which are dated from the 8th century AD, record the first sumo match in 23 BC,