The Celtics were losing at halftime by more points than any team in NBA playoff history

The Cavlaiers (including LeBron James (far right) erupt after teammate J.R. Smith (not pictured) hits a shot at the buzzer to make the score 72-31 at the half. Globe Staff Photo/Jim Davis

History was made in the first half of Game 2 of the Eastern Conference Finals. The Celtics were just on the wrong side of it.

Thanks to a perfect storm of their own sharp shooting and the Celtics’ struggles, the Cavaliers built a record-setting 41-point halftime lead:

Almost everything the Cavs threw at the basket seemed to fall, including this buzzer-beater from J.R. Smith: