Founded beside the old capital's shrine
The Dai Nippon Butokukai (大日本武徳会), the Greater Japan Society of Martial Virtue, was founded in Kyōto in April 1895, in the nationalist afterglow of Japan's eleven-hundredth anniversary celebrations of the Heian capital and its victory over Qing China. Established as a foundation to promote, teach and honour the martial arts, it built the Butokuden training hall beside the Heian Shrine, and set out to gather the country's fragmented fighting traditions under one institutional roof.
The institution that made modern budō
It is difficult to name a Japanese martial art the Butokukai did not reshape. It convened the committees that produced standard kata for kendō and jūdō from the competing classical schools, administered gradings, and created the teaching titles hanshi and kyōshi that budō still uses. It ran a training college for instructors in Kyōto, promoted the renaming of the fighting arts from jutsu, technique, to dō, way, and gave the surviving koryū a national stage at its annual festivals. For half a century, martial legitimacy in Japan largely meant Butokukai recognition.
Martial virtue as national project: the belief, glorious and dangerous, that a state could administer the sword's soul.
Mobilisation and dissolution
The same centralising power made the society an instrument of the wartime state. From the late 1930s it was progressively absorbed into government structures, and budō under its administration became explicit training for war. For that role the occupation authorities ordered its dissolution in November 1946, with a purge of its officials. Postwar organisations have revived the name as private bodies, but the legal institution ended in 1946; its true survival is quieter and larger, in the ranks, titles, standard forms and the very word budō that every modern practitioner inherits.