Brazilian Jiu-Jitsu (BJJ) is an orthogonal development of pre-1925 Kodokan Judo (known then as ju-jitsu). It arrived in Brazil when Mitsuyo Maeda first introduced it during his visit to Brazil with the hopes of establishing a Japanese colony/community in the country. It was further developed by the Gracie family during the mid-20th century. The most important difference of Brazillian jiu-jitsu compared to Judo and Japanese Jujitsu is that BJJ is much more focused on ground fighting than their eastern counterparts. While Japanese Jujitsu and Judo does have extensive training in ground fighting (newaza), with some schools favoring ground techniques over throwing, no Japanese school put so much emphasis on ground techniques as is done in BJJ. Some (if not the majority of) BJJ schools reach a point of overlooking throwing techniques entirely. Such trainning regime is responsible for the great advances in ground fighting introduced by Brazillian jiu-jitsu. In addition, like Judo, Brazilian jiu-jitsu encourages "randori" or free sparring against a live, resisting opponent. Thus, students have an opportunity to test their skills and develop them under realistic conditions, with minimal risk of injury. BJJ is trained mostly with a gi identical to the judo gi, while there´s increasing trainning classes specifically ministered without a gi in preparation for submission wrestling championships (as the celebrated Abu-dabi contest).