sumo
wrestling
Sumo (相撲, sumō?) is a competitive full-contact wrestling sport where a rikishi (wrestler) attempts to force another wrestler out of a circular ring (dohyō) or to touch the ground with anything other than the soles of the feet.
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this competitor getting ready for a fight
this cometitor is knocking the other cometitor out of the ring
these cometitior are about to go in for the attack
history
Historians agree that the origins of sumo date back 2000 years; however, it never really flourished as a spectator sport until the early 1600's. Like any other social group in Japan, there are strict rules and traditions that are observed throughout the sport