Banner Years: 1962, Celtics survive two Game 7s in toughest challenge yet

Basketball: NBA Finals: Boston Celtics Bill Russell (6) in action, rebound vs Los Angeles Lakers. Game 7. Boston, MA 4/18/1962 CREDIT: Walter Iooss Jr. (Photo by Walter Iooss Jr. /Sports Illustrated via Getty Images) (Set Number: X8418 ) NBA history spans 80 seasons, and as CelticsBlog readers well know, the Boston Celtics have won a league-high 18 championships. This month, we are recapping each of those title years.If the Boston Celtics were ever going to have their championship streak broken,