dal (who  later changed his name to Masutatsu Oyama), the founder of Kyokushin  Karate. Choi was born in South Korea in 1923, immigrated to Japan in  1938, and founded the Kyokushin Karate organization in 1953.  Currently, Kyokushin Karate is practiced by more than 12 million  practitioners in over 120 countries around the world.