Judo is generally categorized as a modern Japanese martial art, which has since evolved into a combat and Olympic sport. The sport was created in 1882 by Jigoro Kano as a physical, mental, and moral pedagogy in Japan. With its origins coming from jujutsu, judo's most prominent feature is its competitive element, where the objective is to either throw or take down an opponent to the ground, immobilize or otherwise subdue an opponent with a pin, or force an opponent to submit with a joint lock or a choke. Strikes and thrusts by hands and feet as well as weapons defences are a part of judo, but only in pre-arranged forms (kata, 形) and are not allowed in judo competition or free practice (randori, 乱取り). It was also referred to as Kanō Jiu-Jitsu until the introduction to the Olympic Games. A judo practitioner is called a "judoka", and the judo uniform is called "judogi".
philosophy and subsequent pedagogy developed for judo became the model for
other modern Japanese martial arts that developed from koryū (古流, traditional schools). Judo also
spawned a number of derivative martial arts across the world, such as Brazilian
jiu-jitsu, Krav Maga, Sambo and ARB. Judo also influenced other combat styles
such as close-quarters combat (CQC), mixed martial arts (MMA), shoot wrestling
and submission wrestling.