Latvia for the next 45 years. The peaceful Singing Revolution, starting in 1987, called for Baltic emancipation from Soviet rule and condemning the Communist regime's illegal takeover. It ended with the Declaration on the Restoration of Independence of the Republic of Latvia on 4 May 1990, and restoring "de facto" independence on 21 August 1991. Latvia is a democratic sovereign state, parliamentary republic and a very highly developed country according to the United Nations Human Development Index. Its capital Riga served as the European Capital of Culture in 2014. Latvian is the official language. Latvia is a unitary state, divided into
Religion in Latvia with 17.3%. Latvia was one of the last regions in Europe to be Christianized. The inhabitants of the region that is now Latvia once practiced Finnic paganism and Baltic mythology, but this practice gradually diminished through the course of the centuries. In the 12th to 13th centuries Latvia first fell under the influence of the Catholic Church, as the Christian kings of Denmark, Sweden and the North German Livonian and Teutonic military orders fought for influence in the region in what later became known as the Northern Crusades. Parts of Eastern Latvia (notably the Koknese and Jersika principalities) shortly came