When he uses outside interference, when he attacks the referee, or when he completely rips off his opponent's mask. Most matches are two out of three falls, which had been abandoned for title matches in North America and Japan in the 1970s. A unique rule in Lucha Libre applies during team matches, i.e., when a team's legal wrestler touches the ground outside the ring, a teammate may enter the ring to take his place as a legal competitor. Since the legal wrestler can step on the floor willingly, it is not necessary to tag a teammate to enter the match. This often allows for much more frantic action to take place in the ring than would be possible under standard tag rules. History The antecedents of Mexican wrestling date back to 1863, during the French Intervention in Mexico, when Enrique Ugartechea, the first Mexican wrestler, developed and invented the Mexican Lucha Libre from the Greco-Roman wrestling. In the early 1900s, professional wrestling was mostly a regional phenomenon in Mexico until Salvador Lutteroth founded the Empresa Mexicana de Lucha Libre (Mexican Wrestling Enterprise) in 1933, giving the sport a national foothold for the first time. The promotion flourished and quickly became the premier spot for wrestlers. As television surfaced as a viable entertainment medium during the 1950s, Lutteroth was then able to broadcast his wrestling across the nation, subsequently yielding a popularity explosion for the sport. Moreover, it was the emergence of television that allowed Lutteroth to promote Lucha Libre's first breakout superstar into a national pop-culture phenomenon. In 1942, lucha libre would be forever changed when a silver-masked wrestler, known simply as El Santo (The Saint), first stepped into the ring. He made his debut in Mexico City by winning an 8-man battle royal. The public became in love with the mystique and secrecy of Santo's personality, and he quickly became the most popular luchador in Mexico. His wrestling career spanned nearly five decades, during which he became a folk hero and a symbol of justice for the common man through his appearances in comic books and movies, while the sport received an unparalleled degree of mainstream attention. Other legendary luchadores who helped popularize the sport include Gory Guerrero, who is credited with developing moves and holds which are now commonplace in professional wrestling; Blue Demon, a contemporary of Santo and possibly his greatest rival; and Mil Máscaras (Man of