The Kōdōkan is a prominent judo school founded in 1882 by Jigoro Kano in Tokyo, Japan. It serves as the headquarters for the sport of judo and is recognized for its role in developing judo as a martial art and competitive sport. The Kōdōkan emphasizes the principles of mutual welfare and benefit, promoting both physical and mental development. In addition to training judokas, the Kōdōkan is involved in organizing competitions and establishing rules for the sport. It has played a significant role in spreading judo worldwide, contributing to its recognition as an Olympic sport since 1964.