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.
January 4 Tokyo Dome Show
The January 4 Tokyo Dome Show is a professional wrestling event produced annually on January 4 in the Tokyo Dome by New Japan Pro-Wrestling (NJPW), a Japan-based professional wrestling promotion. NJPW has promoted events in the Tokyo Dome on January 4 since 1992. The January 4 Tokyo Dome Show has since became NJPW's premier annual event and the biggest event in Japanese wrestling, similar to what WrestleMania is for WWE and American professional wrestling.