Who invented the BJJ slap hands-fist bump?

 So did at first BJJ had bowing like Judo, and it just picked up the slap hands when the Gracies got to California?

Did Maeda still bow by the time he got to Brazil and did he require this of the young Gracies?

var so = new SWFObject("http://www.youtube.com/v/QAAnrqDygns", "postVideo-38914962-Flash", "425", "355", "9.0.28", "##000"); so.addParam("allowScriptAccess", "samedomain"); so.addParam("allowNetworking", "internal"); so.addParam("wmode", "transparent"); so.write("postVideo-38914962");  Looks like in the fifties it was a regular handshake (0:35)

Here in rural Canada we just mean-mug each other and say "If you're coming on, COME ON!"

According to Fox News, that's Michelle Obama's "terrorist's fist bump"