Tegumi (手組) or Mutō (無刀) is a traditional form of wrestling from Okinawa. According to Shōshin Nagamine, in his "Tales of Okinawa's Great Masters", there are no accurate historical documents surrounding the origins of grappling in Okinawa. It seems that tegumi evolved from a primitive form of grappling self-defense, which was constantly being adapted and enhanced as it was exposed to outside influences. Okinawan folklore is full of references to tegumi and it is believed that the island's version of sumo can find its roots in the rural wrestling of the past.