A combat sport, or fighting sport, is a competitive contact sport that usually involves one-on-one combat. In many combat sports, a contestant wins by scoring more points than the opponent, submitting the opponent with a hold, disabling the opponent (knockout, KO), or attacking the opponent in a specific or designated technique. Combat sports share a long pedigree with the martial arts. Some combat sports (and their national origin) include Western Boxing (British), Brazilian jiu-jitsu (Brazilian), Jiu-jitsu (Japanese), Judo (Japanese), Karate (Chinese/Okinawan/Japanese), Kickboxing (numerous origins), Lethwei (Burmese), Mixed martial arts (numerous origins), Muay Thai (Thai), Sambo (Soviet/Russian), Sanda (Chinese), Savate (French), Tae Kwon Do (Korean), Vale tudo (Brazilian), Pankration (Ancient Greek), Luta Livre (Brazilian), Wrestling (Numerous Origins) and Pro-Wrestling (British/American). History Traditional styles of wrestling exist in most cultures; wrestling can be considered a cultural universal. Boxing contests date back to ancient Sumer in the 3rd millennium BCE and ancient Egypt circa 1350 BCE. The ancient Olympic Games included several combat-related sports: armored foot races, boxing, wrestling, and pankration, which was introduced in the Olympic Games of 648 BCE. In ancient China, combat sport appeared in the form of lei tai. It was a no-holds barred combat sport that combined boxing and wrestling. There is evidence of similar combat sports in ancient Egypt, India and Japan. Through the Middle ages and Renaissance, the tournament was popular. Tournaments were competitions that featured several mock combat events, with jousting as a main event. While the tournament was popular among aristocrats, combat sports were practiced by all levels of society. The German school of late medieval martial arts distinguished sportive combat (schimpf) from serious combat (ernst). In the German Renaissance, sportive combat competitions were known as Fechtschulen, corresponding to the Prize Playing in Tudor England. Out of these Prize Playing events developed the English boxing (or prizefighting) of the 18th century, which evolved into modern boxing with the introduction of the Marquess of Queensberry rules in 1867. Amateur boxing has been part of the modern Olympic Games since their introduction in 1904. Professional boxing became popular in the United States in the 1920s and experienced a "golden age" after World War II. The creation of Brazilian Jiu-Jitsu is attributed to the Gracie family of Brazil in 1925 after Asian martial arts were introduced to Brazil. Vale-tudo, wrestling, muay thai kickboxing and luta livre gained popularity. Modern Muay Thai was developed in the 1920s to