CREATE TABLE table_39475 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Location" TEXT, "Time  (  ET  ) " TEXT, "Result" TEXT, "Record" TEXT)

What is the date of the game at Arrowhead Stadium?
SELECT "Date" FROM table_39475 WHERE "Location" = 'arrowhead stadium'
SELECT "Date" FROM "table_39475" WHERE "Location" = 'arrowhead stadium'