Dai Nippon Butoku Kai
After these events, Ueshiba seemed to slowly grow away from Takeda, and he began to change his art. These changes are reflected in the differing names with which he referred to his system, first as "aiki-jūjutsu", then Ueshiba-ryū, Asahi-ryū, and "aiki budō". In 1942, when Ueshiba's group joined the Dai Nippon Butoku Kai, the martial art that Ueshiba developed finally came to be known as aikido.