What was the date of the game played at Gillette Stadium with a score of 40-21?
CREATE TABLE table_name_97 (date VARCHAR, location VARCHAR, result VARCHAR)
SELECT date FROM table_name_97 WHERE location = "gillette stadium" AND result = "40-21"
### Context: CREATE TABLE table_name_97 (date VARCHAR, location VARCHAR, result VARCHAR) ### Question: What was the date of the game played at Gillette Stadium with a score of 40-21? ### Answer: SELECT date FROM table_name_97 WHERE location = "gillette stadium" AND result = "40-21"