Topic summary
NBA championship

Extracted from the Wikipedia article NBA Finals.
1940s–1950s: Beginnings and Lakers dynasty
In 1948, the Minneapolis Lakers won the championship of the rival National Basketball League before joining the BAA. Led by future Hall of Famer George Mikan, the Lakers won the third and final BAA championship in 1949 over the Red Auerbach-coached Washington Capitals. The BAA then merged with the NBL to form the National Basketball Association before the 1949–50 season. The Lakers won the inaugural NBA championship in 1950 to become the first team to repeat as champions.