Chuseok (추석; 秋夕; [tɕʰu.sʌk̚]), originally known as hangawi (한가위; [han.ɡa.ɥi]; from archaic Korean for the great middle (of autumn)), is a major harvest festival and a three-day holiday in Korea celebrated on the 15th day of the 8th month of the lunar calendar on the full moon.