Boxing in the 1950s and Floyd Patterson emerged as the youngest heavyweight champion in history (coincidentally, he beat Moore for the title left vacant by Marciano). Patterson remained the youngest heavyweight champion in history until November 22, 1986, when a 20-year-old Mike Tyson defeated the 31-year-old WBC Heavyweight Champion Trevor Berbick by TKO in round 2. The dark side of boxing once again emerged: Jake LaMotta alleged at a hearing that he had thrown a fight with Billy Fox in exchange for a try at the world Middleweight title, and Jim Norris, an important promoter of the time, was associated with Blinky Palermo and
Boxing in the 1930s were crowned before Joe Louis began his legendary run as Heavyweight champion in 1937. He retired in 1949, still holding the title of World Heavyweight Champion. Boxing began expanding into Latin America in the 1930s: Sixto Escobar became the first world champion from Puerto Rico by defeating "Baby Casanova", who had also been crowned at the start of the decade. "Baby Arizmendi" conquered the first world title for Mexico in 1934. For his part, "Kid Chocolate" became the first world champion from Cuba. Three world champions won world titles in three different divisions, a feat no single fighter had accomplished