The Turkmen Soviet Socialist Republic (Түркменистан Совет Социалистик Республикасы, Türkmenistan Sowet Sotsialistik Respublikasy; Russian: Туркменская Советская Социалистическая Республика, Turkmenskaya Sovetskaya Sotsialisticheskaya Respublika), also commonly known as Turkmenistan or Turkmenia, was one of the constituent republics of the Soviet Union located in Central Asia existed as a republic from 1925 to 1991. Initially, on 7 August 1921, it was established as the Turkmen Oblast of the Turkestan ASSR before being made, on 13 May 1925, a separate republic of the USSR as the Turkmen SSR.