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
National Library of Latvia National Library of Latvia The National Library of Latvia () also known as Castle of Light ("Gaismas pils") is a national cultural institution under the supervision of the Ministry of Culture of Latvia. The National Library of Latvia was formed in 1919 after the independent Republic of Latvia was proclaimed in 1918. The first supervisor of the Library was Jānis Misiņš, a librarian and the founder of the Latvian scientific bibliography (1862–1945). Today the Library plays an important role in the development of Latvia's information society, providing Internet access to residents and supporting research and lifelong education. The National Library