Originally Posted by knock_you_out
Jiu-Jitsu -> Judo -> BJJ
The arm bar came from Jiu-Jitsu, first.
But if you're going to say that, you have to spell it 'jujutsu'.
But there are a lot of people, including myself, who think that the jujigatame was developed by ninjas.
Some evidence points to the submission being developed in India by ancient wrestlers.