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
On the Restoration of Independence of the Republic of Latvia On the Restoration of Independence of the Republic of Latvia The Declaration "On the Restoration of Independence of the Republic of Latvia" () was adopted on 4 May 1990, by the Supreme Soviet of the Latvian SSR. The Declaration stated that, although Latvia had "de facto" lost its independence in 1940, when it was annexed by the Soviet Union, the country had "de jure" remained a sovereign country as the annexation had been unconstitutional and against the will of the people of Latvia. Therefore it resolved that the Molotov–Ribbentrop Pact and the Soviet occupation of Latvia in 1940 were illegal,