Champion Carnival
From 1959 to 1972, the Japan Pro Wrestling Alliance (JWA), run by Rikidōzan, held a tournament called World League (also known as the "World Big League"), which featured both Japanese and foreign professional wrestlers. Rikidōzan himself dominated the annual tournament early on, however, after his death in 1963, the tournament was won six times by Giant Baba and once by Antonio Inoki. JWA folded shortly after both Baba and Inoki left the promotion to create All Japan Pro Wrestling (AJPW) and New Japan Pro-Wrestling (NJPW), respectively. Both men took the concept of World League with them to their new promotions, with Baba creating the "Champion Carnival" in 1973 and Inoki creating the World League in 1974, later renaming it G1 Climax.
Puroresu
Since its establishment, professional wrestling in Japan has depended on foreigners, called gaijin, particularly North Americans, to get its own stars over. Rikidōzan's JWA and its successor promotions All Japan Pro Wrestling and New Japan Pro-Wrestling were members of the American-based National Wrestling Alliance at various points, and used these connections to bring North American stars. International Pro Wrestling was the first Japanese promotion to link into European circuits. It was through IWE that Frenchman André the Giant got his international reputation for the first time.