 The Shálako festival, on or about December 1, is a remarkable sacred drama, enacted in the open for the double purpose of invoking the divine blessing upon certain newly built houses, and of rendering thanks to the gods for the harvests of the year.The exact date of the Shálako is fixed each year by a formula of the Zuni Bow priests, which traditionally was the 49th day past the tenth full moon, but has been altered to the weekend nearest the 49th day past the tenth full moon, as many Zuni people work away from their Reservation at jobs that do not allow them weekdays off.The official publication of the date is not made until the eighth evening before the event.