April 30 – At the Baltimore Arena in Baltimore, Maryland. Superstar Billy Graham used both feet on the ropes to pin Bruno Sammartino to become the World Wide Wrestling Federation Heavyweight Champion.
^ abcdeRoyal Duncan and Gary Will (2006). "Mexico: EMLL NWA World Light Heavyweight Title". Wrestling Title Histories (4th ed.). Archeus Communications. p. 389. ISBN0-9698161-5-4.
^Duncan, Royal; Will, Gary (2006). "Mexico: EMLL NWA World Light Heavyweight Title [Lutteroth]". Wrestling title histories: professional wrestling champions around the world from the 19th century to the present (4th ed.). Archeus Communications. p. 389. ISBN0-9698161-5-4.
^ abRoyal Duncan and Gary Will (2000). "Mexico: National Lightweight Title". Wrestling Title Histories. Pennsylvania: Archeus Communications. p. 393. ISBN0-9698161-5-4.