Jackie Robinson - Wikipedia
Celtics history: Russell jersey retired; Bird for 60; Rodgers born
Celtics Legend Bill Russell's No. 6 Jersey to Be Permanently Retired by NBA, News, Scores, Highlights, Stats, and Rumors
Bill Russell's No. 6 Joins Rare Class of Retired Jersey Numbers - The New York Times
Wilt Chamberlain - Wikipedia
Why was Boston Garden nearly empty when Bill Russell's number was retired in 1972? - The Boston Globe
Bill Russell's No. 6 is being retired across the NBA : NPR
Bill Russell's No. 6 jersey to be retired throughout NBA - NBA.com : r/nba
NBA retire number 6 jersey to 'honour the life and legacy' of Bill Russell
John Havlicek, Celtics great with mighty steal, dies at 79, National Sports
NBA to retire Bill Russell's number league-wide: Which current NBA players wear No. 6?
Bill Russell's No. 6 jersey to be retired throughout NBA
The NBA Just Retired The Number 6 LEAGUE WIDE For Bill Russell!