They might not have known it before tipoff, but the Boston Celtics were about to make history with the Philadelphia 76ers ...

The Boston Celtics defeated the Dallas Mavericks ... over Houston Rockets 1985 -- Los Angeles Lakers over Boston Celtics 1984 -- Boston Celtics over Los Angeles Lakers 1983 -- Philadelphia 76ers ...

The Celtics frontline has no answers for Bernard King, who scores 43 points to help the Knicks square their series with Boston at 2-2.

Before Friday, the worst NBA Finals loss for the 17-time champion Celtics was 137-104 to the Lakers in 1984. This was worse ... and Game 5 is in Boston on Monday. AP NBA: https://apnews.com ...

Boston is one of the NBA's true heavyweights ... Then, from 1980-81 through 1985-86, the Celtics won three titles in 1981, 1984 and 1986. The Celtics have gone 18-5 in their 23 appearances.