Algeria is divided into 48 provinces (wilayas), 553 districts (daïras) and 1,541 municipalities (baladiyahs). Each province, district, and municipality is named after its seat, which is usually the largest city. According to the Algerian constitution, a province is a territorial collectivity enjoying some economic freedom.
Education is officially compulsory for children between the ages of six and fifteen. Approximately 5% of the adult population of the country is illiterate.
Muslim festivals are timed according to local sightings of various phases of the moon and the dates given above are approximations.