Everything probably influenced everything , no one owns anything really
But I think it quite possible the Japanese codified and designed there own arts . In fact it`s a given thats why they are japanese arts .
I think actually Bhohidarama originally brought it from India as a from of Yoga
I love chinese styles , I do have a lot more time for Judo than Chin na , just because I figure Ive got plenty of time to evolve that way , but I wont be able to bang like this forever ....
But really it`s all the same .
I think the old it existed here before here thing is pretty redundant , MA has existed ever since man perceived the need to defend himself .
I`d say it`s the second oldest proffession .