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
Politics of Latvia have an opposite practice, requiring visas from both citizens and non-citizens of Latvia, but allowing non-citizens to travel to Russia with a cheaper visa. As a transitional clause, the Latvian law allows dual citizenship for those who were forced to leave Latvia during the Soviet or Nazi occupation and adopted another citizenship while away from Latvia. In order to be eligible for dual citizenship, they had to claim it by July 1, 1995. After that date the other citizenship must be renounced upon the acceptance of the Latvian citizenship. Latvian is the sole state language in Latvia; while the threatened