II. The Aikido Community California Aikido Association  The Aikido of Northern California Yudansha Kai was organized in 1974 by black belt holders dedicated to the task of training and teaching Aikido.  (The term “yudansha” means “graduate”.  In Aikido, “yudansha” are black belts.  “Mudansha” are under-graduates, or those who have not yet reached black belt rank.) 

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