Brazilian Jiu-Jitsu aka BJJ is a martial art and combat sport system that focuses on grappling with particular emphasis on ground fighting. Brazilian Jiu-Jitsu was developed from Kodokan judo ground fighting (newaza) fundamentals that were taught by a number of Japanese individuals including Takeo Yano, Mitsuyo Maeda, Soshihiro Satake, and Isao Okano. Brazilian Jiu-Jitsu eventually came to be its own defined combat sport through the innovations, practices, and adaptation of Judo and Jujutsu.