The Cleveland Browns are an American football team based in Cleveland, Ohio. They are currently members of the North Division of the American Football Conference (AFC) in the National Football League (NFL). The team began play in 1946 as a charter member of the All-America Football Conference (AAFC) and joined the NFL in 1950 after the AAFC folded. Cleveland has won a total of eight league championships. They won all four AAFC titles (including a 15-0 undefeated season in 1948), and after joining the NFL won four additional championships prior to the league's merger with the American Football League (AFL) in 1970.