Original sentence: Brazilian Jiu-Jitsu (BJJ) is a martial art that was first developed in Brazil by the Gracie family during the mid-20th century.However, not all schools award stripes, or award them consistently, so the number of stripes a person has is not necessarily a good measure of their accomplishments or time in training.Judo has a much higher amount of referee intervention; in Judo matches, the competitors are often returned to the standing position, while in Jiu-Jitsu matches, the participants are generally allowed to remain on the ground while working for a submission.On average it takes 8-15 years to achieve Black Belt in Brazilian Jiu Jitsu with the fastest being 4 years (Lloyd Irvin, B.Penn, many Gracie family members, et al).This is a "live" martial art where one can go 100% in training without fear of injuring his or her opponent
Edited sentence: Brazilian Jiu-Jitsu (BJJ), also known as Gracie Jiu-Jitsu (GJJ), is a martial art that was developed in Brazil by the Gracie family during the mid-20th century.However in Brazilian Jiu Jitsu, you begin to see that it is not about what belt you wear but how well you can apply techniques.Judo has a much higher amount of referee intervention; in Judo matches, the competitors are often returned to the standing position, while in Jiu-Jitsu matches, the participants are generally allowed to remain on the ground while working towards a submission.On average it takes 8-15 years to achieve Black Belt in Brazilian Jiu Jitsu with the fastest being 4 years (Lloyd Irvin, BJ Penn, many Gracie family members, et al).Then again, neither is a belt.This is a "live" martial art where you can go 100% in training without fear of injuring your opponent.Unlike belts however, not all schools award stripes, or award them consistently, so the number of stripes a person has is not necessarily a good measure of their accomplishments or time in training