Professional wrestling, a performing art, is a popular form of entertainment in Australia, North America, Latin America, Europe, and Japan. It developed in the early 20th century, with predecessors in funfair and variety strongman and wrestling performances, which could often involve match fixing, in the 19th century.
Wrestling as a modern sport developed in the 19th century out of traditions of folk wrestling, emerging in the form of two styles of regulated competitive sport, "freestyle" and "Greco-Roman" wrestling (based on British and continental tradition, respectively), summarized under the term "amateur wrestling" by the beginning of the modern Olympics in 1896. The separation of "worked", i.e. purely performative, choreographed wrestling ("admitted fakery" or "kayfabe") from competitive sport begins in the 1920s.
Its popularity declined during World War II, but it was revived in the late 1940s to 1950s, the First Golden Age of professional wrestling in the United States, during which Gorgeous George gained mainstream popularity. In Mexico and Japan, the 1940s-1950s was also a Golden Age for professional wrestling, with Santo becoming a Mexican folk hero, and Rikidōzan achieving similar fame in Japan.