In what year was the company that owns the IWGP Tag Team Championship founded?
IWGP Tag Team Championship: The IWGP Tag Team Championship is a professional wrestling tag team championship owned by the New Japan Pro-Wrestling (NJPW) promotion. New Japan Pro-Wrestling: New Japan Pro-Wrestling Co., Ltd. (新日本プロレス株式会社 , Shin Nihon Puroresu Kabushiki-kaisha ) , operating as New Japan Pro-Wrestling (新日本プロレス , Shin Nihon Puroresu ) and sometimes referred to as NJPW or simply New Japan, is a Japanese puroresu (professional wrestling) promotion founded in January 1972 by Antonio Inoki.
1972