The Central Division is one of the three divisions in the Eastern Conference of the National Basketball Association (NBA). The division consists of five teams, the Chicago Bulls, the Cleveland Cavaliers, the Detroit Pistons, the Indiana Pacers and the Milwaukee Bucks. All teams, except the Cavaliers, are former Midwest Division teams, hence the Central Division now largely resembling the Midwest Division in the 1970s. The division was created at the start of the 1970–71 season, when the league expanded from 14 to 17 teams with the addition of the Buffalo Braves, the Cleveland Cavaliers and the Portland Trail Blazers. The league realigned itself into two conferences, the Western Conference and the Eastern Conference, with two divisions each in each conference. The Central Division began with four inaugural members, the Atlanta Hawks, the Baltimore Bullets, the Cincinnati Royals and the Cleveland Cavaliers. The Hawks joined from the Western Division, while the Bullets and the Royals joined from the Eastern Division. The Pistons have won the most Central Division titles with nine. The Bulls have won the second most titles with eight. Eleven NBA champions came from the Central Division. The Bulls won six championships, the Pistons won three championships and the Bullets and Cavs won one championship each. All of them, except the 1977–78 Bullets and the 2003–04 Pistons, were division champions. In the 2005–06 season, all five teams from the division qualified for the playoffs. The most recent division champion is the Milwaukee Bucks. The Central Division has the most teams that have won an championship, with four out of five teams winning the championship, and the Pacers the only franchise never to have won. The Central Division existed for one season in the 1949–50 season as one of the three divisions in the NBA, along with the Western and the Eastern Division. On the other hand, the current Central Division that was formed in the 1970, is one of the three divisions in the Eastern Conference, the successor of the Eastern Division.