Question: When was the last time celtics won nba championship?
Disambiguated questions and answers: question: As of 2017, when was the last time the Celtics won the NBA championship?
As of 2016, when was the last time the Celtics won the NBA championship?
As of 2015, when was the last time the Celtics won the NBA championship?
answer: 2008
2008
2008
Natural Questions answer: 2008 (from the Wikipedia article "Boston Celtics")