Grandmaster (martial arts) of "Dan" rankings and Black belt and Red belt in martial arts both derive from Judo where they were adopted by its founder Kanō Jigorō. There are many terms similar or equivalent to 'grandmaster' used by various martial arts traditions. Some of these terms derive from older systems, while others are relatively modern. Japanese martial arts commonly use Sensei (先生) meaning "teacher" or literally translated, "born first" or "one who has gone before". A "Sensei" is a person who has knowledge and is willing to teach that knowledge to another. A "Sensei" assists students in "ken shiki" "the pursuit of
Korean martial arts Consequently, the Korean people developed unique martial arts and military strategies in order to defend themselves and their territory. Traditional Korean martial arts gradually fell into three main groups or branches: In 1958, these branches of traditional Korean martial arts were organized to form a single modern hybrid-system known as Kuk Sool Won. Today, Korean martial arts are being practiced worldwide; more than one in a hundred of the world's population practices some form of taekwondo. Among the best recognized Korean practices using weapons are traditional Korean archery and Kumdo, the Korean adaptation of the Japanese Kendo. The best known