Earl Lloyd was first black NBA player, Chuck Cooper was the first black player to be drafted, and Nat Clifton was the first black player to sign a contract with an NBA team.
John Amaechi became the first NBA player to admit that he was gay in 2007. Amaechi retired from the NBA in 2003.
first and fifteenth
There is no NBA Hall of Fame. George Mikan was the first NBA player inducted into the Basketball Hall of Fame in 1959. Bill Russell was inducted in 1975.
There were many "First" people to play, i can tell you the first MVP... Bob Pettit in 1956