Skopje was first divided into administrative units in 1945, but the first municipalities were created in 1976. They were five: Centar, Čair, Karpoš, Gazi Baba and Kisela Voda. After the independence of the Republic of Macedonia, power was centralized and municipalities lost much of their competences. A 1996 law restored them and created two new municipalities: Gjorče Petrov and Šuto Orizari. After the insurgency between Albanian rebels and Macedonian forces in 2001, a new law was enacted in 2004 to incorporate Saraj Municipality into the City of Skopje. Saraj is mostly populated by Albanians and, since then, Albanians represent more than 20% of the city population. Thus Albanian became the second official language of the city administration, something which was one of the claims of the Albanian rebels. The same year, Aerodrom Municipality separated itself from Kisela Voda, and Butel Municipality from Čair.