Because of its great variety of peoples and languages, Chad possesses a rich cultural heritage. The Chadian government has actively promoted Chadian culture and national traditions by opening the Chad National Museum and the Chad Cultural Centre. Six national holidays are observed throughout the year, and movable holidays include the Christian holiday of Easter Monday and the Muslim holidays of Eid ul-Fitr, Eid ul-Adha, and Eid Milad Nnabi.