<Table> <Tr> <Th_colspan="2"> Republic of Armenia Հայաստանի Հանրապետություն Hayastani Hanrapetut'yun (Armenian) </Th> </Tr> <Tr> <Td_colspan="2"> Flag Coat of arms </Td> </Tr> <Tr> <Td_colspan="2"> Anthem: Մեր Հայրենիք Mer Hayrenik "Our Fatherland" </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Capital and largest city </Th> <Td> Yerevan 40 ° 11 ′ N 44 ° 31 ′ E ﻿ / ﻿ 40.183 ° N 44.517 ° E ﻿ / 40.183; 44.517 </Td> </Tr> <Tr> <Th> Official languages </Th> <Td> Armenian </Td> </Tr> <Tr> <Th> Ethnic groups (2011) </Th> <Td> <Ul> <Li> 98.1% Armenians </Li> <Li> 1.2% Yazidis </Li> <Li> 0.4% Russians </Li> <Li> 0.3% other </Li> </Ul> </Td> </Tr> <Tr> <Th> Religion </Th> <Td> Armenian Apostolic Church </Td> </Tr> <Tr> <Th> Demonym </Th> <Td> Armenian </Td> </Tr> <Tr> <Th> Government </Th> <Td> Unitary parliamentary republic </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> President </Th> <Td> Armen Sarkissian </Td> </Tr> <Tr> <Th> Prime Minister </Th> <Td> Nikol Pashinyan </Td> </Tr> <Tr> <Th> President of the National Assembly </Th> <Td> Ara Babloyan </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Legislature </Th> <Td> National Assembly </Td> </Tr> <Tr> <Th_colspan="2"> Formation and independence </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Traditional date </Th> <Td> 2492 BC </Td> </Tr> <Tr> <Th> Hayasa - Azzi </Th> <Td> 1500--1290 BC </Td> </Tr> <Tr> <Th> Arme - Shupria </Th> <Td> 14th century--1190 BC </Td> </Tr> <Tr> <Th> Urartu </Th> <Td> 860--590 BC </Td> </Tr> <Tr> <Th> Orontid dynasty </Th> <Td> 6th century BC </Td> </Tr> <Tr> <Th> Kingdom of Greater Armenia united under the Artaxiad Dynasty </Th> <Td> 190 BC </Td> </Tr> <Tr> <Th> Arsacid dynasty </Th> <Td> 52--428 </Td> </Tr> <Tr> <Th> Bagratid Armenia </Th> <Td> 885--1045 </Td> </Tr> <Tr> <Th> Kingdom of Cilicia </Th> <Td> 1198--1375 </Td> </Tr> <Tr> <Th> First Republic of Armenia declared </Th> <Td> 28 May 1918 </Td> </Tr> <Tr> <Th> Independence from the Soviet Union </Th> <Td> 21 September 1991 </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th_colspan="2"> Area </Th> </Tr> <Tr> <Th> Total </Th> <Td> 29,743 km (11,484 sq mi) (138th) </Td> </Tr> <Tr> <Th> Water (%) </Th> <Td> 4.71 </Td> </Tr> <Tr> <Th_colspan="2"> Population </Th> </Tr> <Tr> <Th> 2016 estimate </Th> <Td> 2,924,816 </Td> </Tr> <Tr> <Th> 2011 census </Th> <Td> 3,018,854 (134th) </Td> </Tr> <Tr> <Th> Density </Th> <Td> 101.5 / km (262.9 / sq mi) (99th) </Td> </Tr> <Tr> <Th> GDP (PPP) </Th> <Td> 2017 estimate </Td> </Tr> <Tr> <Th> Total </Th> <Td> $28,282 billion </Td> </Tr> <Tr> <Th> Per capita </Th> <Td> $9,456 </Td> </Tr> <Tr> <Th> GDP (nominal) </Th> <Td> 2017 estimate </Td> </Tr> <Tr> <Th> Total </Th> <Td> $11,548 billion </Td> </Tr> <Tr> <Th> Per capita </Th> <Td> $3,861 </Td> </Tr> <Tr> <Th> Gini (2013) </Th> <Td> 31.5 medium </Td> </Tr> <Tr> <Th> HDI (2015) </Th> <Td> 0.743 high 84th </Td> </Tr> <Tr> <Th> Currency </Th> <Td> Dram (֏) (AMD) </Td> </Tr> <Tr> <Th> Time zone </Th> <Td> AMT (UTC + 4) </Td> </Tr> <Tr> <Th> Drives on the </Th> <Td> right </Td> </Tr> <Tr> <Th> Calling code </Th> <Td> + 374 </Td> </Tr> <Tr> <Th> Patron saint </Th> <Td> St. Gregory </Td> </Tr> <Tr> <Th> ISO 3166 code </Th> <Td> AM </Td> </Tr> <Tr> <Th> Internet TLD </Th> <Td> <Ul> <Li>. am </Li> <Li>. հայ </Li> </Ul> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Republic of Armenia Հայաստանի Հանրապետություն Hayastani Hanrapetut'yun (Armenian) </Th> </Tr>

When did armenia gain independence from the soviet union