WrestleMania is a professional wrestling pay-per-view event produced by the American promotion WWE, formerly known as the World Wrestling Federation (WWF), and is considered the flagship event of the company. The events feature wrestlers from the promotion's roster competing in a variety of professional wrestling matches. The WrestleMania franchise debuted in 1985 with WrestleMania I, and has been produced annually since. WrestleMania 37 in 2021 was the most recent production.