What modern Japanese martial art was developed by Morihei Ueshiba, often referred to as"the founder" "Kaiso" or "Ōsensei"?
Morihei Ueshiba Morihei Ueshiba (植芝 盛平 , Ueshiba Morihei , December 14, 1883 – April 26, 1969) was a martial artist and founder of the Japanese martial art of Aikido. He is often referred to as "the founder" "Kaiso" (開祖 ) or "Ōsensei" (大先生/翁先生 ) , "Great Teacher".
Tadashi Abe Tadashi Abe (阿部 正 , Abe Tadashi ) (1926 – November 23, 1984) was the first aikido master to live and teach in the west. He began training in Aikido in Osaka in 1942 and went on to train directly under the founder of the art Morihei Ueshiba at Iwama as an uchideshi during World War II. In 1952, after graduating in law from Waseda University, he moved to France where he studied law at the Sorbonne and taught aikido as a 6th Dan representative of Aikikai Honbu. After seven years he returned to Japan. By 1964 he was a 7th dan black belt in aikido.