Brazilian Jiu-Jitsu is a martial art focusing on grappling and ground fighting. It is derived from Judo which was founded in the late 1800's which was developed from multiple schools of the original Japanese Jiu-Jitsu. Like Judo, Brazilian Jiu-Jitsu teaches the principles of technique that allow a much smaller and/or weaker opponent to defend themselves against a much uch larger opponent. Brazilian Jiu-Jitsu incorporates joints locks and choke-holds forcing the opposition to "submit".
Brazilian Jiu-Jitsu can be used for self-defense as well as in sport grappling tournaments or in mixed martial arts. Sport Brazilian Jiu-Jitsu uses mainly submissions without the use of strikes and allows competitors to train techniques at full speed and with full power. Brazilian Jiu-Jitsu is a belted method and rank is usually determined by the amount of technical knowledge one can demonstrate along with performance and sparring in competition as well as dedication of time to training.
Although Brazilian Jiu-Jitsu is derived from Judo, there are many differences along with the similarities.
While Judo puts a greater emphasis on throws from the standing position, Brazilian Jiu-Jitsu focuses more on groundwork. Many submission techniques taught in Brazilian-Jitsu originated from Judo.
However, there are techniques that are unique to Brazilian Jiu-jisu as well. The GI used in Brazilian Jiu-Jitsu is similar to that of a Judo GI, but with tighter fitting cuffs on the jacket and pants. This provides less material for the opponent to manipulate.
Brazilian Jiu-Jitsu originated in the early 1900's, but did not gain international prominence till the 1990's when Royce Gracie, son of Helio Gracie (Founder of Gracie Jiu-Jitsu) won the 2nd Ultimate Fighting Championship. Brazilian Jiu-Jitsu has since become a staple among mixed martial artists and is credited for bringing attention to the importance of ground fighting.