Japan Sumo Association is the only organization in Japan, which is responsible for the professional and commercial operation of sumo. It is subordinate to the Ministry of education, culture, science and technology. Sumo, called vegetarian dance in ancient times, originated in the Han Dynasty of China. Two Hercules bare their upper bodies and wrestled with each other. Sumo is divided into 10 levels according to sports performance: the mouth of the preface, the second section of the preface, the third section, under the curtain, twelve, the front, summary, Guan threat, Da Guan and horizontal outline. Henggang is the highest title of an athlete and a lifelong honorary title.
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