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About Kyokushin™ -

USA Kyokushin™ Karate Sosai Mas Oyama The founder of Kyokushinkai Karate, Grand Master Masutatsu (Mas) Oyama was one of the toughest men to grace this world. He was born in Korea, on July 27th 1923 in Kimji, and his birth name was Choi Young-Eui. At

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