The martial art of Brazilian Jiu-Jitsu (BJJ) was formed from Kodokan judo ground fighting fundamentals. It was adapted and brought to North and South America by Carlos and Helio Gracie where it eventually became its own art.
BJJ focuses on grappling and ground fighting, promoting the concept that a smaller, weaker person can successfully defend against a bigger, stronger, heavier assailant by using proper technique, leverage, and most notably, taking the fight to the ground, and then applying joint-locks and chokeholds to defeat the opponent.
BJJ training can be used for sport grappling tournaments and in self-defense situations. Rolling plays a major role in training.
The BJJ ranking system is one of colored belts which are worn as part of the uniform. They are a means of signifying a student's increasing level of technical knowledge and practical skill. While similar to Judo, the system has minor differences such as a division between youths and adults and the issuance of stripes and degrees.
BJJ is not solely a martial art but it is also a method for promoting physical fitness and building character in young people; and, ultimately, a way of life.