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 Japan Pro Wrestling
The promotion was founded by Shohei "Giant" Baba and the Momota brothers, Mitsuo and Yoshihiro, sons of Rikidōzan. Baba, a former professional baseball pitcher, joined the Japan Pro Wrestling Alliance (JWA) in 1960. In October 1972, he left the JWA and formed his own group, All Japan. Their first card was on October 21, 1972 at Machida City Gym in Tokyo, Japan. The inaugural roster included Baba, Mitsuo Momota, Akio Sato, Samson Kutsuwada, Motoshi Okuma and Mashio Koma. Thunder Sugiyama, who had recently left International Wrestling Enterprise, also came along to help and brought some lower-level IWE wrestlers with him on a freelance basis. Some personalities from North America also helped with the few cards, including Dory Funk Sr., Terry Funk, Bruno Sammartino, Dominic DeNucci, Fred Blassie and The Destroyer.