Cleveland Browns
The history of the Cleveland Browns American football team began in 1944 when taxi-cab magnate Arthur B. "Mickey" McBride secured a Cleveland franchise in the newly formed All-America Football Conference (AAFC). Paul Brown was the team's namesake and first coach. The Browns began play in 1946 in the AAFC. The Browns won each of the league's four championship games before the league dissolved in 1949. The team then moved to the more established National Football League (NFL), where it continued to dominate. Between 1950 and 1955, Cleveland reached the NFL championship game every year, winning three times.
2017 Cleveland Browns season
In going 0–16, the Browns became the first franchise in NFL history to have multiple seasons with 15 or more losses and the first to start consecutive seasons with at least 14 losses. They were mathematically eliminated from the AFC North title contention in Week 11, extending an active NFL record drought of 25 consecutive seasons without a division title. They were then eliminated from playoff contention in Week 12, extending their franchise record playoff drought to 15 consecutive seasons. With the Buffalo Bills qualifying for the postseason for the first time since 1999, the Browns now have the longest postseason drought in the NFL and the second longest in the four major American sports leagues, only behind the Seattle Mariners of Major League Baseball.