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".
Kaisando A kaisandō (開山堂 , kaisan-dō ) , also termed the Founder's Hall, is a temple structure in a Japanese Buddhist monastery complex or other temple where an image (or images) of the founding abbot and other significant teachers and Buddha ancestors are kept, along with a memorial slab (J. ihai). Sometimes also referred to as the Patriarch Hall (J. "soshido") or Reflection Hall (J. "Eishitsu"), this building holds memorial services yearly on the anniversary of the death of the founding abbot.