<Table> <Tr> <Td_colspan="3"> Union of Soviet Socialist Republics </Td> </Tr> <Tr> <Td_colspan="3"> Союз Советских Социалистических Республик Soyuz Sovetskikh Sotsialisticheskikh Respublik </Td> </Tr> <Tr> <Td_colspan="3"> <Table> <Tr> <Td> </Td> <Td> 1922--1991 </Td> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td_colspan="3"> Flag (1980--1991) State Emblem </Td> </Tr> <Tr> <Td_colspan="3"> Motto Workers of the world, unite! Пролетарии всех стран, соединяйтесь! (Proletarii vsekh stran, soyedinyaytes'! Literally: Proletarians of all countries, unite!) </Td> </Tr> <Tr> <Td_colspan="3"> Anthem The Internationale (1922--1944) State Anthem of the Soviet Union (1944--1956) State Anthem of the Soviet Union (modified version) (1977--1991) </Td> </Tr> <Tr> <Td_colspan="3"> The Soviet Union after World War II </Td> </Tr> <Tr> <Td_colspan="2"> Capital </Td> <Td> Moscow </Td> </Tr> <Tr> <Td_colspan="2"> Languages </Td> <Td> Russian (de facto official) Other languages (show) <Ul> <Li> <Ul> <Li> Ukrainian </Li> <Li> Belarusian </Li> <Li> Uzbek </Li> <Li> Kazakh </Li> <Li> Georgian </Li> <Li> Azerbaijani </Li> <Li> Lithuanian </Li> <Li> Moldovan </Li> <Li> Latvian </Li> <Li> Kyrgyz </Li> <Li> Tajik </Li> <Li> Armenian </Li> <Li> Turkmen </Li> <Li> Estonian </Li> </Ul> </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> Demonym </Td> <Td> Soviet, Russian </Td> </Tr> <Tr> <Td_colspan="2"> Government </Td> <Td> <Ul> <Li> Federal Marxist--Leninist one - party socialist state (1922--1990) </Li> <Li> Federal semi-presidential republic (1990--1991) </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> General Secretary </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 1922--1952 </Td> <Td> Joseph Stalin (first) </Td> </Tr> <Tr> <Td> </Td> <Td> 1991 </Td> <Td> Vladimir Ivashko (last) </Td> </Tr> <Tr> <Td_colspan="2"> Head of state </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 1922--1938 </Td> <Td> Mikhail Kalinin (first) </Td> </Tr> <Tr> <Td> </Td> <Td> 1988--1991 </Td> <Td> Mikhail Gorbachev (last) </Td> </Tr> <Tr> <Td_colspan="2"> Head of government </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 1922--1924 </Td> <Td> Vladimir Lenin (first) </Td> </Tr> <Tr> <Td> </Td> <Td> 1991 </Td> <Td> Ivan Silayev (last) </Td> </Tr> <Tr> <Td_colspan="2"> Legislature </Td> <Td> Supreme Soviet </Td> </Tr> <Tr> <Td> </Td> <Td> Upper house </Td> <Td> Soviet of the Union </Td> </Tr> <Tr> <Td> </Td> <Td> Lower house </Td> <Td> Soviet of Nationalities </Td> </Tr> <Tr> <Td_colspan="2"> Historical era </Td> <Td> 20th century </Td> </Tr> <Tr> <Td> </Td> <Td> Treaty of Creation </Td> <Td> 30 December 1922 </Td> </Tr> <Tr> <Td> </Td> <Td> Admitted to the United Nations </Td> <Td> 25 October 1945 </Td> </Tr> <Tr> <Td> </Td> <Td> Constitution adopted </Td> <Td> 9 October 1977 </Td> </Tr> <Tr> <Td> </Td> <Td> Union dissolved </Td> <Td> 26 December 1991 </Td> </Tr> <Tr> <Td_colspan="3"> Area </Td> </Tr> <Tr> <Td> </Td> <Td> 1991 </Td> <Td> 22,402,200 km (8,649,500 sq mi) </Td> </Tr> <Tr> <Td_colspan="3"> Population </Td> </Tr> <Tr> <Td> </Td> <Td> 1991 est . </Td> <Td> 293,047,571 </Td> </Tr> <Tr> <Td_colspan="2"> Density </Td> <Td> 13 / km (34 / sq mi) </Td> </Tr> <Tr> <Td_colspan="2"> Currency </Td> <Td> Soviet ruble (руб) (SUR) </Td> </Tr> <Tr> <Td_colspan="2"> Internet TLD </Td> <Td>. su </Td> </Tr> <Tr> <Td_colspan="2"> Calling code </Td> <Td> + 7 </Td> </Tr> <Tr> <Td_colspan="3"> <Table> <Tr> <Td> Preceded by </Td> <Td> Succeeded by </Td> </Tr> <Tr> <Td> <Table> <Tr> <Td> </Td> <Td> Russian SFSR </Td> </Tr> <Tr> <Td> </Td> <Td> Transcaucasian SFSR </Td> </Tr> <Tr> <Td> </Td> <Td> Ukrainian SSR </Td> </Tr> <Tr> <Td> </Td> <Td> Byelorussian SSR </Td> </Tr> <Tr> <Td> </Td> <Td> Bukharan People's Soviet Republic </Td> </Tr> <Tr> <Td> </Td> <Td> Khorezm People's Soviet Republic </Td> </Tr> <Tr> <Td> </Td> <Td> Second Polish Republic </Td> </Tr> <Tr> <Td> </Td> <Td> Estonia </Td> </Tr> <Tr> <Td> </Td> <Td> Latvia </Td> </Tr> <Tr> <Td> </Td> <Td> Lithuania </Td> </Tr> <Tr> <Td> </Td> <Td> Kingdom of Romania </Td> </Tr> <Tr> <Td> </Td> <Td> Tuvan People's Republic </Td> </Tr> </Table> </Td> <Td> <Table> <Tr> <Td> Russian Federation </Td> <Td> </Td> </Tr> <Tr> <Td> Ukraine </Td> <Td> </Td> </Tr> <Tr> <Td> Belarus </Td> <Td> </Td> </Tr> <Tr> <Td> Armenia </Td> <Td> </Td> </Tr> <Tr> <Td> Azerbaijan </Td> <Td> </Td> </Tr> <Tr> <Td> Estonia </Td> <Td> </Td> </Tr> <Tr> <Td> Georgia </Td> <Td> </Td> </Tr> <Tr> <Td> Kazakhstan </Td> <Td> </Td> </Tr> <Tr> <Td> Kyrgyzstan </Td> <Td> </Td> </Tr> <Tr> <Td> Latvia </Td> <Td> </Td> </Tr> <Tr> <Td> Lithuania </Td> <Td> </Td> </Tr> <Tr> <Td> Moldova </Td> <Td> </Td> </Tr> <Tr> <Td> Tajikistan </Td> <Td> </Td> </Tr> <Tr> <Td> Turkmenistan </Td> <Td> </Td> </Tr> <Tr> <Td> Uzbekistan </Td> <Td> </Td> </Tr> </Table> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td_colspan="3"> Notes <Ol> <Li> ^ Assigned on 19 September 1990, existing onwards . </Li> <Li> ^ All - union official since 1990, constituent republics had the right to declare their own official languages </Li> </Ol> </Td> </Tr> </Table> <Tr> <Td_colspan="3"> Union of Soviet Socialist Republics </Td> </Tr>

When did the soviet union change to russia