Re: Aikido ground technique orgin
Very interesting. I read an article on Neil Ohlenkamp's Judo site about the roots of Dr. Kano's Judo. It said that Judo stemmed more from the tradition of annual man vs. man Jujitsu competition carried out in Japan since antiquity. This seems to support the line of thinking you folks are presenting.
Aikido, Judo, Jujitsu, it's all Ju to me.