The Pittsburgh Steelers are a professional American football team based in Pittsburgh. The Steelers compete in the National Football League (NFL) as a member club of the American Football Conference (AFC) North Division. Founded in 1933, the Steelers are the seventh-oldest franchise in the NFL, and the oldest franchise in the AFC. In contrast with their status as perennial also-rans in the pre-merger NFL, where they were the oldest team never to have won a league championship, the Steelers of the post-merger (modern) era are among the most successful NFL franchises, especially during their dynasty in the 1970s. The team is tied with the New England Patriots for the most Super Bowl titles at six, and they have both played in (16 times) and hosted (11 times) more conference championship games than any other team in the NFL. The Steelers have also won eight AFC championships, tied with the Denver Broncos, but behind the Patriots’ record 11 AFC championships. The team have the second-most Super Bowl appearances with eight. The Steelers, whose history may be traced to a regional pro team that was established in the early 1920s, joined the NFL as the Pittsburgh Pirates on July 8, 1933. The Steelers enjoy a large, widespread fanbase nicknamed Steeler Nation. They currently play their home games at Acrisure Stadium on Pittsburgh’s North Side. Built in 2001 as Heinz Field, the stadium replaced Three Rivers Stadium, which had hosted the Steelers for 31 seasons. Prior to Three Rivers, the Steelers had played their games in Pitt Stadium and at Forbes Field.