it came from real wrestling like catch wrestling and... I could do a history of wrestling in america paper on here but just read a history of grappling book
many of the old time pro wrestlers were champion real wrestlers, look up the words hooker and shooter and a shoot and there wer instances of wrestlers getting in street fights with top boxers of the daythe result was the top boxer getting an ass wupping, so the usa not brazil is actually the birth place of NHB, oh some bjj dude is going to choke me now