I will take a try at this.

In the 1970's there was Ping Pong Diplomacy, where China and the US would exchange Table Tennis Players in the early 1970's. It is seen as one of the moves that began to thaw US-China Relations and help lead to Nixon Visiting China in 1972.

Sorry, we don't allow throughout history questions. These tend to produce threads which are collections of trivia, not the in-depth discussions about a particular topic we're looking for. If you have a specific question about a historical event or period or person, please feel free to re-compose your question and submit it again. Alternatively, you may PM /u/caffarelli to have your question considered for an upcoming Tuesday Trivia thread.