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
Association for Renaissance Martial Arts the restoration of Medieval and Renaissance martial arts is still in its infancy and no modern practitioner has contributed to the art enough to claim the title of "Master". Outside of this system, there is a purely academic distinction called "Senior Researcher" that is granted to ARMA scholars who contribute significantly to the general body of knowledge on historical fencing. The ARMA also has over a dozen "Expert Consultants" from different fields who have offered their knowledge and expertise to its efforts. Association for Renaissance Martial Arts Association for Renaissance Martial Arts (ARMA) is a US-based non-profit organization dedicated to