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.
All Together (professional wrestling)
All Together was a series of two professional wrestling events organized together by Japan's three biggest promotions; All Japan Pro Wrestling (AJPW), New Japan Pro-Wrestling (NJPW) and Pro Wrestling Noah, in response to the March 2011 Tōhoku earthquake and tsunami. The first event was held in Tokyo on August 27, 2011, and the second in Sendai on February 19, 2012. All proceeds from the events were donated to Japanese Red Cross. The events featured no storylines or championship matches, instead they were booked as "supercards", putting together combinations of wrestlers from the three promotions that fans would normally not see.