The CMLL 66th Anniversary Show () was a professional wrestling major show event produced by Consejo Mundial de Lucha Libre (CMLL) that took place on September 24, 1999, in Arena México, Mexico City, Mexico. The event commemorated the 66th anniversary of CMLL, the oldest professional wrestling promotion in the world. The Anniversary show is CMLL's biggest show of the year, their Super Bowl event. The CMLL Anniversary Show series is the longest-running annual professional wrestling show, starting in 1934. The show consisted of seven matches, with the main event being a Parejas Suicidas match where the losing team would be forced to wrestle against each other in a Lucha de Apuestas, mask vs. mask match, immediately after the tag team match. Atlantis and Villano III defeated Mr. Niebla and Shocker, forcing Mr. Niebla and Shocker to wrestle each other in the final match of the night. The show also featured three Six-man tag team matches, a four against three handicap match and a tag team match. Production Background The Mexican Lucha libre (professional wrestling) company Consejo Mundial de Lucha Libre (CMLL) started out under the name Empresa Mexicana de Lucha Libre ("Mexican Wrestling Company"; EMLL), founded by Salvador Lutteroth in 1933. Lutteroth, inspired by professional wrestling shows he had attended in Texas, decided to become a wrestling promoter and held his first show on September 21, 1933, marking what would be the beginning of organized professional wrestling in Mexico. Lutteroth would later become known as "the father of Lucha Libre" . A year later EMLL held the EMLL 1st Anniversary Show, starting the annual tradition of the Consejo Mundial de Lucha Libre Anniversary Shows that have been held each year ever since, most commonly in September. Over the years the anniversary show would become the biggest show of the year for CMLL, akin to the Super Bowl for the National Football League (NFL) or WWE's WrestleMania event. The first anniversary show was held in Arena Modelo, which Lutteroth had bought after starting EMLL. In 1942–43 Lutteroth financed the construction of Arena Coliseo, which opened in April 1943. The EMLL 10th Anniversary Show was the first of the anniversary shows to be held in Arena Coliseo. In 1956 Lutteroth had Arena México built in the location of the original Arena Modelo, making Arena México the main venue of EMLL from that point on. Starting with the EMLL 23rd Anniversary Show, all