Martial arts are codified systems and traditions of combat practiced for a number of reasons such as self-defense; military and law enforcement applications; competition; physical, mental and spiritual development; and entertainment or the preservation of a nation's intangible cultural heritage.

Although the term martial art has become associated with the fighting arts of East Asia, it originally referred to the combat systems of Europe as early as the 1550s. The term is derived from Latin and means "arts of Mars", the Roman god of war.^[1] Some authors have argued that fighting arts or fighting systems would be more appropriate on the basis that many martial arts were never "martial" in the sense of being used or created by professional warriors.^[2]

Martial arts may be categorized using a variety of criteria, including:

Unarmed martial arts can be broadly grouped into those focusing on strikes, those focusing on grappling, and those that cover both fields, often described as hybrid martial arts.

Strikes

Grappling

The traditional martial arts that cover armed combat often encompass a wide spectrum of melee weapons, including bladed weapons and polearms. Such traditions include eskrima, silat, kalaripayat, kobudo, and historical European martial arts, especially those of the German Renaissance. Many Chinese martial arts also feature weapons as part of their curriculum.

Sometimes, training with one specific weapon may be considered a style in its own right, especially in the case of Japanese martial arts, with disciplines such as kenjutsu and kendo (sword), bojutsu (staff), and kyudo (archery). Similarly, modern martial arts and sports include modern fencing, stick-fighting systems like canne de combat, and modern competitive archery.

Many martial arts, especially those from Asia, also teach side disciplines which pertain to medicinal practices. This is particularly prevalent in traditional Asian martial arts which may teach bone-setting, herbalism, and other aspects of traditional medicine.^[3]

Martial arts can also be linked with religion and spirituality.

Numerous systems are reputed to have been founded, disseminated, or practiced by monks or nuns.

Throughout the Asian arts, meditation may be incorporated as part of training.

In those arts influenced by Hindu-Buddhist philosophy, the practice itself may be used as an aid to attaining enlightenment.

Japanese styles, when concerning non-physical qualities of the combat, are often strongly influenced by Mahayana Buddhist philosophy. Concepts like "empty mind" and "beginner's mind" are recurrent. Aikido practitioners for instance, can have a strong philosophical belief of the flow of energy and peace fostering, as idealised by the art's founder Morihei Ueshiba.

Traditional Korean martial arts place emphasis on the development of the practitioner's spiritual and philosophical development. A common theme in most Korean styles, such as Taekkyon and taekwondo, is the value of "inner peace" in a practitioner, which is stressed to be only achievable through individual meditation and training. The Koreans believe that the use of physical force is only justifiable for defense.

Systema draws upon breathing and relaxation techniques, as well as elements of Russian Orthodox thought, to foster self-conscience and calmness, and to benefit the practitioner in different levels: the physical, the psychological and the spiritual.^[4]

Some martial arts in various cultures can be performed in dance-like settings for various reasons, such as for evoking ferocity in preparation for battle or showing off skill in a more stylized manner, with capoeira being the most prominent example. Many such martial arts incorporate music, especially strong percussive rhythms. (See also war dance.)

Human warfare dates back to the Epipalaeolithic to early Neolithic era. The oldest works of art depicting scenes of battle are cave paintings from eastern Spain (Spanish Levante) dated between 10,000 and 6,000 BC that show organized groups fighting with bows and arrows.^[5][6] Similar evidence of warfare has been found in Epipalaeolithic to early Neolithic era mass burials, excavated in Germany and at Jebel Sahaba in Northern Sudan.^[5]

Wrestling is the oldest combat sport, with origins in hand-to-hand combat. Belt wrestling was depicted in works of art from Mesopotamia and Ancient Egypt circa 3000 BC, and later in the Sumerian Epic of Gilgamesh.^[7] The earliest known depiction of boxing comes from a Sumerian relief in Mesopotamia (modern Iraq) from the 3rd millennium BC.^[8]

Chinese martial arts originated during the legendary, possibly apocryphal, Xia Dynasty more than 4000 years ago. It is said the Yellow Emperor Huangdi (legendary date of ascension 2698 BC) introduced the earliest fighting systems to China. The Yellow Emperor is described as a famous general who before becoming China's leader, wrote lengthy treatises on medicine, astrology and martial arts. One of his main opponents was Chi You who was credited as the creator of jiao di, a forerunner to the modern art of Chinese wrestling.

The foundation of modern Asian martial arts is likely a blend of early Chinese and Indian martial arts. During the Warring States period of Chinese history (480-221 BC) extensive development in martial philosophy and strategy emerged, as described by Sun Tzu in The Art of War (c. 350 BC).^[9] Legendary accounts link the origin of Shaolinquan to the spread of Buddhism from ancient India during the early 5th century AD, with the figure of Bodhidharma, to China.^[10] Written evidence of martial arts in Southern India dates back to the Sangam literature of about the 2nd century BC to the 2nd century AD.^[11] The combat techniques of the Sangam period were the earliest precursors to Kalaripayattu.^[12]

In Europe, the earliest sources of martial arts traditions date to Ancient Greece. Boxing (pygme, pyx), wrestling (pale) and pankration were represented in the Ancient Olympic Games. The Romans produced gladiatorial combat as a public spectacle.

A number of historical combat manuals have survived from the European Middle Ages. This includes such styles as sword and shield, two-handed swordfighting and other types of melee weapons besides unarmed combat. Amongst these are transcriptions of Johannes Liechtenauer's mnemonic poem on the longsword dating back to the late fourteenth century. Likewise, Asian martial arts became well-documented during the medieval period, Japanese martial arts beginning with the establishment of the samurai nobility in the 12th century, Chinese martial arts with Ming era treatises such as Ji Xiao Xin Shu, Indian martial arts in medieval texts such as the Agni Purana and the Malla Purana, and Korean martial arts from the Joseon era and texts such as Muyejebo (1598).

European swordsmanship always had a sportive component, but the duel was always a possibility until World War I. Modern sport fencing began developing during the 19th century as the French and Italian military academies began codifying instruction. The Olympic games led to standard international rules, with the Féderation Internationale d'Escrime founded in 1913. Modern boxing originates with Jack Broughton's rules in the 18th century, and reaches its present form with the Marquess of Queensberry Rules of 1867.

Certain traditional combat sports and fighting styles exist all over the world, rooted in local culture and folklore.

The most common of these are styles of folk wrestling, some of which have been practiced since antiquity and are found in the most remote areas. Other examples include forms of stick fighting and boxing. While these arts are based on historical traditions of folklore, they are not "historical" in the sense that they reconstruct or preserve a historical system from a specific era. They are rather contemporary regional sports that coexist with the modern forms of martial arts sports as they have developed since the 19th century, often including cross-fertilization between sports and folk styles; thus, the traditional Thai art of muay boran developed into the modern national sport of muay Thai, which in turn came to be practiced worldwide and contributed significantly to modern hybrid styles like kickboxing and mixed martial arts. Singlestick, an English martial art can be seen often utilized in morris dancing. Many European dances share elements of martial arts with examples including Ukrainian Hopak, Polish Zbójnicki (use of ciupaga), the Czech dance odzemek, and the Norwegian Halling.

The mid to late 19th century marks the beginning of the history of martial arts as modern sports developed out of earlier traditional fighting systems.

In Europe, this concerns the developments of boxing and fencing as sports. In Japan, the same period marks the formation of the modern forms of judo, jujutsu, karate, and kendo (among others) based on revivals of old schools of Edo period martial arts which had been suppressed during the Meiji Restoration. Modern muay Thai rules date to the 1920s. In China, the modern history of martial arts begins in the Nanjing decade (1930s) following the foundation of the Central Guoshu Institute in 1928 under the Kuomintang government.

Western interest in Asian martial arts arises towards the end of the 19th century, due to the increase in trade between the United States with China and Japan. Relatively few Westerners actually practiced the arts, considering it to be mere performance. Edward William Barton-Wright, a railway engineer who had studied jujutsu while working in Japan between 1894 and 1897, was the first man known to have taught Asian martial arts in Europe. He also founded an eclectic style named Bartitsu which combined jujutsu, judo, wrestling, boxing, savate and stick fighting.

Fencing and Greco-Roman wrestling was included in the 1896 Summer Olympics. FILA Wrestling World Championships and Boxing at the Summer Olympics were introduced in 1904. The tradition of awarding championship belts in wrestling and boxing can be traced to the Lonsdale Belt, introduced in 1909.

The International Boxing Association was established in 1920. World Fencing Championships have been held since 1921.

As Western influence grew in Asia a greater number of military personnel spent time in China, Japan and South Korea during World War II and the Korean War and were exposed to local fighting styles. Jujutsu, judo and karate first became popular among the mainstream from the 1950s-60s. Due in part to Asian and Hollywood martial arts movies, most modern American martial arts are either Asian-derived or Asian influenced.^[13] The term kickboxing (キックボクシング) was created by the Japanese boxing promoter Osamu Noguchi for a variant of muay Thai and karate that he created in the 1950s. American kickboxing was developed in the 1970s, as a combination of boxing and karate. Taekwondo was developed in the context of the Korean War in the 1950s.

The later 1960s and 1970s witnessed an increased media interest in Chinese martial arts, influenced by martial artist Bruce Lee. Bruce Lee is credited as one of the first instructors to openly teach Chinese martial arts to Westerners.^[14] World Judo Championships have been held since 1956, Judo at the Summer Olympics was introduced in 1964. Karate World Championships were introduced in 1970.

Following the "kung fu wave" in Hong Kong action cinema in the 1970s, a number of mainstream films produced during the 1980s contributed significantly to the perception of martial arts in western popular culture. These include The Karate Kid (1984) and Bloodsport (1988). This era produced some Hollywood action stars with martial arts background, such as Jean-Claude Van Damme and Chuck Norris.

Also during the 20th century, a number of martial arts were adapted for self-defense purposes for military hand-to-hand combat. World War II combatives, KAPAP (1930s) and Krav Maga (1950s) in Israel, Systema in Soviet-era Russia, and Sanshou in the People's Republic of China are examples of such systems. The US military de-emphasized hand-to-hand combat training during the Cold War period, but revived it with the introduction of LINE in 1989.

During the 1990s Brazilian jiu-jitsu became popular and proved to be effective in mixed martial arts competitions such as the UFC and PRIDE.^[15]

In 1993 the first Pancrase event was held.^[16] The K-1 rules of kickboxing were introduced based on 1980s Seidokaikan karate.

Jackie Chan and Jet Li are prominent movie figures who have been responsible for promoting Chinese martial arts in recent years.

With the continual discovery of more medieval and Renaissance fighting manuals, the practice of Historical European Martial Arts and other Western Martial Arts are growing in popularity across the United States and Europe.

On November 29, 2011, UNESCO inscribed Taekkyon onto its Intangible Cultural Heritage of Humanity List.^[17]

Many martial arts which originated in Southern India were banned by the government of the British Raj,^[18] few of them which barely survived are Kalaripayattu and Silambam. These and other martial arts survived by telling the British government it was a form of dance. Varma kalai, a martial arts concentrating on vital points, was almost dead but is gradually being revived.^[19]

Testing or evaluation is important to martial artists of many disciplines who wish to determine their progression or own level of skill in specific contexts.

Students often undergo periodic testing and grading by their own teacher in order to advance to a higher level of recognized achievement, such as a different belt color or title. The type of testing used varies from system to system but may include forms or sparring.

Various forms and sparring are commonly used in martial art exhibitions and tournaments.

Some competitions pit practitioners of different disciplines against each other using a common set of rules, these are referred to as mixed martial arts competitions.

Rules for sparring vary between art and organization but can generally be divided into light-contact, medium-contact, and full-contact variants, reflecting the amount of force that should be used on an opponent.

These types of sparring restrict the amount of force that may be used to hit an opponent, in the case of light sparring this is usually to 'touch' contact, e.g. a punch should be 'pulled' as soon as or before contact is made.

In medium-contact (sometimes referred to as semi-contact) the punch would not be 'pulled' but not hit with full force.

As the amount of force used is restricted, the aim of these types of sparring is not to knock out an opponent; a point system is used in competitions.

A referee acts to monitor for fouls and to control the match, while judges mark down scores, as in boxing.

Particular targets may be prohibited, certain techniques may be forbidden (such as headbutting or groin hits), and fighters may be required to wear protective equipment on their head, hands, chest, groin, shins or feet. Some grappling arts, such as aikido, use a similar method of compliant training that is equivalent to light or medium contact.

In some styles (such as fencing and some styles of taekwondo sparring), competitors score points based on the landing of a single technique or strike as judged by the referee, whereupon the referee will briefly stop the match, award a point, then restart the match.

Alternatively, sparring may continue with the point noted by the judges.

Some critics of point sparring feel that this method of training teaches habits that result in lower combat effectiveness.

Lighter-contact sparring may be used exclusively, for children or in other situations when heavy contact would be inappropriate (such as beginners), medium-contact sparring is often used as training for full contact.

Full-contact sparring or competition, where strikes or techniques are not pulled but used with full force as the name implies, has a number of tactical differences from light and medium-contact sparring.

It is considered by some to be requisite in learning realistic unarmed combat.^[20]

In full-contact sparring, the aim of a competitive match is to knock out the opponent or to force the opponent to submit. Where scoring takes place it may be a subsidiary measure, only used if no clear winner has been established by other means; in some competitions, such as the UFC 1, there was no scoring, though most now use some form of judging as a backup.^[21] Due to these factors, full-contact matches tend to be more aggressive in character, but rule sets may still mandate the use of protective equipment, or limit the techniques allowed.

Nearly all mixed martial arts organizations such as UFC, Pancrase, Shooto use a form of full-contact rules as do professional boxing organizations and K-1. Kyokushin karate requires advanced practitioners to engage in bare-knuckled, full-contact sparring allowing kicks, knees and punching although punching to the head is disallowed while wearing only a karate gi and groin protector. Brazilian jiu-jitsu and judo matches do not allow striking, but are full-contact in the sense that full force is applied in the permitted grappling and submission techniques. Competitions held by World Taekwondo requires the use of Headgear and padded vest, but are full contact in the sense that full force is applied to strikes to the head and body, and win by knockout is possible.

Martial arts have crossed over into sports when forms of sparring become competitive, becoming a sport in its own right that is dissociated from the original combative origin, such as with western fencing. The Summer Olympic Games includes judo, taekwondo, western archery, boxing, javelin, wrestling and fencing as events, while Chinese wushu recently failed in its bid to be included, but is still actively performed in tournaments across the world. Practitioners in some arts such as kickboxing and Brazilian jiu-jitsu often train for sport matches, whereas those in other arts such as aikido generally spurn such competitions. Some schools believe that competition breeds better and more efficient practitioners, and gives a sense of good sportsmanship. Others believe that the rules under which competition takes place have diminished the combat effectiveness of martial arts or encourage a kind of practice which focuses on winning trophies rather than a focus such as cultivating a particular moral character.

The question of "which is the best martial art" has led to inter style competitions fought with very few rules allowing a variety of fighting styles to enter with few limitations.

This was the origin of the first Ultimate Fighting Championship tournament (later renamed UFC 1: The Beginning) in the U.S. inspired by the Brazilian Vale tudo tradition and along with other minimal rule competitions, most notably those from Japan such as Shooto and Pancrase, have evolved into the combat sport of Mixed Martial Arts (MMA).

Some martial artists compete in non-sparring competitions such as breaking or choreographed routines of techniques such as poomse, kata and aka, or modern variations of the martial arts which include dance-influenced competitions such as tricking. Martial traditions have been influenced by governments to become more sport-like for political purposes; the central impetus for the attempt by the People's Republic of China in transforming Chinese martial arts into the committee-regulated sport of wushu was suppressing what they saw as the potentially subversive aspects of martial training, especially under the traditional system of family lineages.^[22]

Martial arts training aims to result in several benefits to trainees, such as their physical, mental, emotional and spiritual health.^[23]

Through systematic practice in the martial arts a person's physical fitness may be boosted (strength, stamina, speed, flexibility, movement coordination, etc.) as the whole body is exercised and the entire muscular system is activated. Beyond contributing to physical fitness, martial arts training also has benefits for mental health, contributing to self-esteem, self-control, emotional and spiritual well-being. For this reason, a number of martial arts schools have focused purely on therapeutic aspects, de-emphasizing the historical aspect of self-defense or combat completely.

According to Bruce Lee, martial arts also have the nature of an art, since there is emotional communication and complete emotional expression.

Some traditional martial concepts have seen new use within modern military training.

Perhaps the most recent example of this is point shooting which relies on muscle memory to more effectively utilize a firearm in a variety of awkward situations, much the way an iaidoka would master movements with their sword.

During the World War II era William E. Fairbairn and Eric A. Sykes were recruited by the Special Operations Executive (SOE) to teach their martial art of defendu (itself drawing on Western boxing and jujutsu) and pistol shooting to UK, US, and Canadian special forces. The book Kill or Get Killed, written by Colonel Rex Applegate, was based on the defendu taught by Sykes and Fairbairn. Both Fairbairn's Get Tough and Appelgate's Kill or Get Killed became classic works on hand-to-hand combat.

Traditional hand-to-hand, knife, and spear techniques continue to see use in the composite systems developed for today's wars.

Examples of this include European Unifight, the US Army's Combatives system developed by Matt Larsen, the Israeli army's KAPAP and Krav Maga, and the US Marine Corps's Marine Corps Martial Arts Program (MCMAP). Unarmed dagger defenses identical to those found in the manual of Fiore dei Liberi and the Codex Wallerstein were integrated into the U.S. Army's training manuals in 1942^[24] and continue to influence today's systems along with other traditional systems such as eskrima and silat.

The rifle-mounted bayonet which has its origin in the spear, has seen use by the United States Army, the United States Marine Corps, and the British Army as recently as the Iraq War.^[25]

Many martial arts are also seen and used in Law Enforcement hand to hand training.

For example, the Tokyo Riot Police's use of aikido.^[26]

Martial arts since the 1970s has become a significant industry, a subset of the wider sport industry (including cinema and sports television).

Hundreds of millions of people worldwide practice some form of martial art.

Web Japan (sponsored by the Japanese Ministry of Foreign Affairs) claims there are 50 million karate practitioners worldwide.^[27] The South Korean government in 2009 published an estimate that taekwondo is practiced by 70 million people in 190 countries.^[28]

The wholesale value of martial arts related sporting equipment shipped in the United States was estimated at 314 million USD in 2007; participation in the same year was estimated at 6.9 million (ages 6 or older, 2% of US population).^[29] R. A. Court, CEO of Martial Arts Channel, stated the total revenue of the US martial arts industry at USD 40 billion and the number of US practitioners at 30 million in 2003.^[30]

Martial arts equipment can include that which is used for conditioning, protection and weapons. Specialized conditioning equipment can include breaking boards, dummy partners such as the wooden dummy, and targets such as punching bags and the makiwara. Protective equipment for sparring and competition includes boxing gloves and headgear.

Asian martial arts experienced a surge of popularity in the west during the 1970s, and the rising demand resulted in numerous low quality or fraudulent schools. Fueled by fictional depictions in martial arts movies, this led to the ninja craze of the 1980s in the United States.^[31] There were also numerous fraudulent ads for martial arts training programs, inserted into comic books circa the 1960s and 1970s, which were read primarily by adolescent boys.^[32]

When the martial arts came to the United States in the seventies, lower ranks (kyu) began to be given colorful belts to show progress. This proved to be commercially viable and colored-belt systems were adopted in many martial arts degree mills (also known as McDojos and Belt Factories) as a means to generate additional cash. This was covered in Penn & Teller: Bullshit! episode "Martial Arts" (June 2010).