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
Styles of Chinese martial arts further identify the particular style. Other classification schemes include the concept of "external" () and "internal" (). This criterion concerns the training focus of a particular style. Religious affiliation of the group that found the style can also be used as a classification. The three great religions of Taoism, Buddhism and Confucianism have associated martial arts styles. There are also many other criteria used to group Chinese martial arts; for example, imitative-styles () and legendary styles; historical styles and family styles. Another more recent approach is to describe a style according to their combat focus. The traditional dividing line between