Professional wrestling, often referred to as pro wrestling or simply wrestling, is a form of athletic theater centered around mock combat, with the premise that its performers are competitive wrestlers.
Professional wrestling gradually developed from competitive catch wrestling in the late 19th century, when wrestlers and promoters began staging matches with predetermined outcomes to exhibit more excitement and draw larger audiences. Over the course of the 20th century, it became increasingly known that professional wrestling was scripted, but the appeal for fans shifted from its competitive element to the entertainment value; wrestlers subsequently responded by incorporating drama, gimmickry, and outlandish stunts into their performances, while maintaining the pretense of engaging in a competitive sport. Eventually, the term "professional wrestling" was legally defined as a non-sport by various government regulators because legitimate wrestling was effectively confined to amateur enthusiasts.