Masutatsu Oyama (大山 倍達, Ōyama Masutatsu?, July 27th, 1923 – April 26, 1994), more commonly known as Mas Oyama, was a karate master who founded Kyokushinkai Karate, considered the first and most influential style of full contact karate. He was born Choi Yeong-eui (Korean: 최영의 in Korea, Hanja: 崔永宜). A Zainichi Korean, he spent most of his life living in Japan and acquired Japanese citizenship in 1964. He is an alumnus of Waseda University in Japan.
Read more about Mas Oyama: Early Life, Post–World War II, Founds Kyokushin, Prominent Students, Public Demonstrations, Later Years, Final Years, Depiction, Books