In every country of the world, we can find some primitive method of fighting from the ancient times. That is a common matter of instinct; only its forms differ. It was the same in Japan. In ancient times, we had a simple method of fighting- which was named Empty-Handed- Trick. Influenced by the particular surroundings, it developed into a special from of Jujutsu, as was boxing in Europe. In 1882, the late prof. Kano founded the Kodokan Judo. He learned Jujutsu when he was 18 years old and made a thorough study of the subject, including grappling tricks and all the joint tricks of the Tenshin Shinryo School.