”’Brazilian Jiu-Jitsu”’ (BJJ) is a martial art and combat sport that focuses on grappling and especially ground fighting. It is a derivative of early 20th century Kodokan Judo, which was itself then a recently-developed system (founded in 1882), based on multiple schools (or Ryu) of Japanese jujutsu.

Like Judo, it promotes the principle that smaller, weaker person can successfully defend themselves against a bigger, stronger assailant using leverage and proper technique; applying joint-locks and chokeholds to defeat them. BJJ can be trained for self defense, sport grappling tournaments (gi and no-gi) and mixed martial arts (MMA) competition. Sparring (commonly referred to as ‘rolling’) and live drilling play a major role in training, and a premium is placed on performance, especially in competition.

== History ==
=== Origin ===
The art began with Mitsuyo Maeda (aka Conde Koma, or Count Combat in English), an expert Japanese judoka and member of the Kodokan. Maeda was one of five of the Kodokan’s top groundwork experts that Judo‘s founder Kano Jigoro sent overseas to spread his art to the world. Maeda left Japan in 1904 and visited a number of countries giving “jiu-do” demonstrations and accepting challenges from wrestlers, boxers, savate fighters and various other martial artists before eventually arriving in Brazil on November 14, 1914.

Since its inception, judo was separated from jujutsu in its goals, philosophy, and training regime. Although there was great rivalry among jujutsu teachers, this was more than just Kano’s ambition to clearly individualize his art. To Kano, judo wasn’t solely a martial art: it was also a sport, a method for promoting physical fitness and building character in young people, and, ultimately, a way (Do) of life. To a very large extent, Brazilian Jiu-Jitsu has also encompassed these philosophies.

It is often claimed that BJJ is a development of traditional Japanese jujutsu, and that Maeda was a jujutsuka. However, Maeda never trained in jujutsu. He first trained in sumo as a teenager, and after the interest generated by stories about the success of judo at contests between judo and jujutsu that were occurring at the time, he changed from sumo to judo, becoming a student of Kano’s Kodokan judo. He was promoted to 7th dan in Kodokan judo the day before he died in 1941.

Helio Gracie himself had already risen to the rank of 6th dan in judo by the time of his fight against Kimura in 1951. According to Masahiko Kimura in his book “My Judo”. Kodokan records have Hélio Gracie recorded as a 3rd dan in judo, but it is not unusual for a foreign judoka’s grade to be higher than granted by the Kodokan.

=== Name ===
When Maeda left Japan, Judo was still often referred to as “Kano Jiu-Jitsu”, or, even more generically, simply as “Jiu-Jitsu.”

Kigashi, the co-author of “Kano Jiu-Jitsu” wrote in the foreword

: “Some confusion has arisen over the employment of the term ‘jiudo’. To make the matter clear I will state that jiudo is the term selected by Professor Kano as describing his system more accurately than jiu-jitsu does. Professor Kano is one of the leading educators of Japan, and it is natural that he should cast about for the technical word that would most accurately describe his system. But the Japanese people generally still cling to the more popular nomenclature and call it jiu-jitsu.”

Outside Japan, however, this distinction was noted even less. The distinction between a jutsu and a do is subtle, and is still used somewhat arbitrarily to this day.

Thus, when Maeda and Satake arrived in Brazil in 1914, every newspaper announced “jiu-jitsu” despite both men being Kodokan Judoka.

The Japanese government itself did not officially mandate until 1925 that the correct name for the martial art taught in the Japanese public schools should be “judo” rather than “jujutsu”. In Brazil, the art is still called “Jiu-Jitsu”. When the Gracies went to the United States to spread their art, the system became known as “Brazilian Jiu-Jitsu” and “Gracie Jiu-Jitsu.”

“Jiu-jitsu” is an older romanization that was the original spelling of the art in the West, and it is still in common use, whereas the modern Hepburn romanization is “jÃ…«jutsu.” Other common spellings are jujitsu and ju-jitsu.

The art is sometimes referred to as Gracie Jiu-Jitsu (GJJ), but this name is trademarked by Rorion Gracie and specifically refers to the style taught by him and his selected teachers. Other members of the Gracie family often call their style by personalized names, such as Charles Gracie Jiu-Jitsu or Renzo Gracie Jiu-Jitsu, and similarly, the Machado brothers call their style Machado Jiu-Jitsu (MJJ). While each style and its instructors have their own unique aspects, they are all basic variations of Brazilian Jiu-Jitsu.

Today there are four major branches of BJJ from Brazil: Gracie Humaita, Gracie Barra, Alliance Jiu-Jitsu, and Carlson Gracie Jiu-Jitsu. Each branch can trace its roots back to Helio Gracie and Mitsuyo Maeda.

=== Development ===
Maeda met an influential businessman named Gastão Gracie who helped him get established. In 1916, his son Carlos Gracie, still a 14 year-old boy, watched a demonstration by Maeda at the Teatro da Paz (Theatre of Peace) and decided to learn the art. Maeda accepted Carlos as a student, and Carlos went on to become a great exponent of the art and ultimately, with his younger brother Helio Gracie became the founder of Gracie Jiu-Jitsu, modern Brazilian Jiu-Jitsu.

In 1921, Gastão Gracie and his family moved to Rio de Janeiro. Carlos, then 17 years old, passed Maeda’s teachings on to his brothers Osvaldo, Gastão and Jorge. Hélio was too young and sick at that time to learn the art, and due to medical imposition was prohibited to take part in the training sessions. Despite that, Hélio learned from watching his brothers. He eventually overcame his health problems and is now considered by many as the founder of Brazilian Jiu-Jitsu (though others, such as Carlson Gracie, have pointed to Carlos as the founder of the art).

Hélio competed in several submission judo competitions which mostly ended in a draw. One defeat (in Brazil in 1951) was by visiting Japanese judoka Masahiko Kimura, whose surname the Gracies gave to the arm lock used to defeat Hélio.

The Gracie family continued to develop the system throughout the 20th century, often fighting vale tudo matches (precursors to modern MMA), during which it increased its focus on ground fighting and refined its techniques.

Today, the main differences between the BJJ styles is between traditional Gracie Jiu-Jitsu’s emphasis on self-defense, and Sport Brazilian Jiu-Jitsu’s orientation towards point competition. There is a large commonality of techniques between the two. Also, there is a wide variety of ideals in training in different schools in terms of the utilization of technique versus how much to attempt to overpower an opponent.

=== Prominence ===
Brazilian Jiu-Jitsu came to international prominence in the martial arts community in the 1990s, when Brazilian Jiu-Jitsu expert Royce Gracie won the first, second and fourth Ultimate Fighting Championships (UFC), which at the time were single elimination martial arts tournaments. Royce fought against often much-larger opponents who were practicing other styles, including Boxing, Shoot Fighting, Karate, Judo, Tae Kwon Do and Wrestling. It has since become a staple art for many MMA fighters and is largely credited for bringing widespread attention to the importance of ground fighting. Sport BJJ tournaments continue to grow in popularity worldwide and have given rise to no-gi submission grappling tournaments, such as the ADCC Submission Wrestling World Championship.

== Style of Fighting ==
Brazilian Jiu-Jitsu emphasizes ground fighting techniques and submission holds involving joint-locks and chokeholds also found in numerous other arts with or without ground fighting emphasis. The premise is that most of the advantage of a larger, stronger opponent comes from superior reach and more powerful strikes, both of which are somewhat negated when grappling on the ground.

BJJ permits a wide variety of techniques to take the fight to the ground after taking a grip. Once the opponent is on the ground, a number of maneuvers (and counter-maneuvers) are available to manipulate the opponent into a suitable position for the application of a submission technique. Achieving a dominant position on the ground is one of the hallmarks of the BJJ style, and includes effective use of the guard position to defend oneself from bottom, and passing the guard to dominate from top position with side control, mount, and back mount positions. This system of maneuvering and manipulation can be likened to a form of kinetic chess when utilized by two experienced practitioners. A submission hold is the equivalent of checkmate in the sport. However, it is possible for a combat situation to continue even after a proper submission is performed.

Renzo Gracie wrote in his book Mastering Jujitsu:

:”The classical jujutsu of old Japan appeared to have no common strategy to guide a combatant over the course of a fight. Indeed, this was one of Kano’s most fundamental and perceptive criticisms of the classical program.” Maeda not only taught the art of judo to Carlos Gracie, but also taught a particular philosophy about the nature of combat developed by Kano, and further refined by Maeda based on his worldwide travels competing against fighters skilled in a wide variety of martial arts.

The book details Maeda’s theory as arguing that physical combat could be broken down into distinct phases, such as the striking phase, the grappling phase, the ground phase, etc. Thus, it was a smart fighter’s task to keep the fight located in the phase of combat that best suited to his own strengths. Renzo Gracie stated that this was a fundamental influence on the Gracie approach to combat, these strategies were further perfected over time by the Gracies and others, and became prominent in contemporary MMA.

=== Submission ===
The majority of submission holds can be grouped into two broad categories: joint locks and chokes. Joint locks typically involve isolating an opponent’s limb and creating a lever with the body position which will force the joint to move past its normal range of motion. Pressure is increased in a controlled manner and released if the opponent cannot escape the hold and signals defeat by submitting. Opponents can indicate submission verbally or they can tap out (i.e. tap the opponent, the mat, or even themselves, several times.) A choke hold, disrupting the blood supply to the brain, can cause unconsciousness if the opponent does not submit soon enough.

A less common type of submission hold is a compression lock, where the muscle of an opponent is compressed against a hard, large bone (commonly the shin or wrist), causing significant pain to the opponent. These types of locks are not usually allowed in competition due to the high risk of tearing muscle tissue. This type of lock often also hyper-extends the joint in the opposite direction, pulling it apart.

=== Joint Locks ===
While many joint locks are permitted, most competitions ban or restrict some or all joint locks involving the knees, ankles, and spine. The reason for this is that the angles of manipulation required to cause pain are nearly the same as those that would cause serious injury. Joint locks that require a twisting motion of the knee (called twisting knee locks or twisting knee bars, or techniques such as heel hooks, and toe holds) are usually banned in competitions because successfully completing the move nearly always results in permanent damage that requires surgery. Similarly, joint manipulations of the spine are typically barred due to the inherent danger of crushing or mis-aligning cervical vertebrae. Leglocks are allowed in varying degrees depending on skill level, with straight ankle locks being the only leglocks allowed in the beginner division, or white belt level, straight kneebars being allowed in the intermediate division, or blue belt level and toeholds with the pressure applied inwards are allowed in the advanced division (purple, brown, black).

However, most joint locks involving the wrist, elbow, shoulder or ankle are permitted as there is a great deal more flexibility in those joints and those locks are safe to use under tournament conditions. Also, some fighters practice moves whose sole purpose is to inflict pain upon their opponent, in the hope that they will tap out. This includes driving knuckles into pressure points, holding their opponent’s head in order to tire out the neck (called the “can opener” or kubi-hishigi) and putting body weight on top of the sternum, floating ribs, or similarly sensitive bones. These moves are not true submission moves – they are generally only used as distractions mostly in lower levels of competition. They are avoided or aggressively countered in middle to upper levels of competition.

=== Chokes and Strangles ===
Chokes and strangles (commonly but somewhat incorrectly referred to as “air chokes” and “blood chokes” respectively) are a common form of submission. Chokes involve constriction of the windpipe (causing asphyxia.) Strangles involve constriction of the carotid artery (causing ischemia.)

Air chokes are less efficient than strangles and may result in damage to the opponent’s trachea, sometimes even resulting in death. By contrast, blood chokes (strangulations) cut the flow of blood to the opponent’s brain, causing a rapid loss of consciousness without damaging any internal structures. Being “choked-out” in this way is relatively safe as long as the choke is released soon enough after unconsciousness, letting blood back into the brain before oxygen deprivation damage begins. However, it should not be practiced unsupervised.

The prevalence of the more dangerous “air” chokes has led to the banning of choke holds by some United States police departments.

=== Training Methods ===
Sport Brazilian Jiu-Jitsu’s focus on submissions without the use of strikes while training allows practitioners to practice at full speed and with full power, resembling the effort used in a real competition. Training methods include technique drills in which techniques are practised against a non-resisting partner; isolation sparring where only a certain technique or sets of techniques are used against full resistance; and full sparring in which each opponent tries to submit their opponent using any legal technique. Physical conditioning is also an important part of training at many clubs.