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In page Martial arts:

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The later 1960s and 1970s witnessed an increased media interest in Chinese martial arts, influenced by martial artist Bruce Lee. Bruce Lee is credited as one of the first instructors to openly teach Chinese martial arts to Westerners.[2] World Judo Championships have been held since 1956,[citation needed] and Judo at the Summer Olympics was introduced in 1964.[citation needed] Karate World Championships were introduced in 1970.[3]