Judo
Appearance
Judo (柔道) is a martial art which originated in Japan. Judo is said to be a refinement of Jiu jitsu, and was founded by Jigoro Kano in 1882.
While judo is indeed a martial art, it closely resembles wrestling, in that there is very little striking involved - only grappling.
Judo became an Olympic sport in 1964.
A judo player (judoka) can aquire grades (dan), each rewarded by a special colour belt. A judoka with highest achievable grade wears a black belt.