CREATE TABLE table_69804 ("Year" FLOAT, "Date" CLOB, "Winner" CLOB, "Result" CLOB, "Loser" CLOB, "Location" CLOB)

What was the date of the game played at Gillette Stadium with a score of 40-21?
SELECT "Date" FROM table_69804 WHERE "Location" = 'gillette stadium' AND "Result" = '40-21'
SELECT "Date" FROM "table_69804" WHERE "Location" = 'gillette stadium' AND "Result" = '40-21'