Armenia (/ɑːrˈmiːniə/ (listen); Armenian: Հայաստան, romanized: Hayastan, IPA: ; Russian: Армения; Armeniya), officially the Armenian Soviet Socialist Republic (Armenian SSR; Armenian: Հայկական Սովետական Սոցիալիստական Հանրապետություն, romanized: Haykakan Sovetakan Soc'ialistakan Hanrapetut'yun; Russian: Армянская Советская Социалистическая Республика, romanized: Armyanskaya Sovetskaya Sotsialisticheskaya Respublika), also commonly referred to as Soviet Armenia, was one of the constituent republics of the Soviet Union in December 1922 located in the South Caucasus region of Eurasia. It was established in December 1920, when the Soviets took over control of the short-lived First Republic of Armenia and lasted until 1991. It is sometimes called the Second Republic of Armenia, following the First Republic of Armenia's demise. As part of the Soviet Union, the Armenian SSR transformed from a largely agricultural hinterland to an important industrial production center, while its population almost quadrupled from around 880,000 in 1926 to 3.3 million in 1989 due to natural growth and large-scale influx of Armenian Genocide survivors and their descendants. On August 23, 1990, it was renamed the Republic of Armenia after its sovereignty was declared, but remained in the Soviet Union until its official proclamation of independence on 21 September 1991. Its independence was recognized on 26 December 1991 when the Soviet Union ceased to exist. After the dissolution of the Soviet Union, the state of the post-Soviet Republic of Armenia existed until the adoption of the new constitution in 1995. Prior to Soviet rule, the Dashnaksutiun had governed the First Republic of Armenia. The Socialist Soviet Republic of Armenia was founded in 1920. Diaspora Armenians were divided about this: supporters of the nationalist Dashnaksutiun did not support the Soviet state, while supporters of the Armenian General Benevolent Union (AGBU) were more positive about the newly founded Soviet state. From 1828 with the Treaty of Turkmenchay to the October Revolution in 1917, Eastern Armenia had been part of the Russian Empire and partly confined to the borders of the Erivan Governorate. After the October Revolution, Bolshevik leader Vladimir Lenin's government announced that minorities in the empire could pursue a course of self-determination. Following the collapse of the empire, in May 1918 Armenia, and its neighbors Azerbaijan and Georgia, declared their independence from Russian rule and each established their respective republics. After the near-annihilation of the Armenians during the Armenian Genocide and the subsequent Turkish-Armenian War, the historic Armenian area in the Ottoman Empire was overrun with despair and devastation. A number of Armenians joined the advancing 11th Soviet Red Army. Afterward, Turkey and the newly proclaimed Soviet republics in the Caucasus negotiated the Treaty of Kars, in which Turkey resigned from its claims to Batumi to Georgia in exchange for the Kars territory, corresponding to the modern-day Turkish provinces of Kars, Iğdır, and Ardahan. The medieval Armenian capital of Ani, as well as the cultural icon of the Armenian people Mount Ararat, were located in the ceded area. Additionally, Joseph Stalin, then acting Commissar for Nationalities, granted the areas of Nakhchivan and Nagorno-Karabakh (both of which were promised to Armenia by the Bolsheviks in 1920) to Azerbaijan. From March 12, 1922 to December 5, 1936, Armenia was a part of the Transcaucasian SFSR (TSFSR) together with the Georgian SSR and the Azerbaijan SSR. The policies of the first Soviet Armenian government, the Revolutionary Committee (Revkom), headed by young, inexperienced, and militant communists such as Sarkis Kasyan and Avis Nurijanyan, were implemented in a highhanded manner and did not take into consideration the poor conditions of the republic and the general weariness of the people after years of conflict and civil strife. As the Soviet Armenian historian Bagrat Borian, who was to later perish during Stalin's purges, wrote in 1929: Such was the degree and scale of the requisitioning and terror imposed by the local Cheka that in February 1921 the Armenians, led by former leaders of the republic, rose up in revolt and briefly unseated the communists in Yerevan. The Red Army, which was campaigning in Georgia at the time, returned to suppress the revolt and drove its leaders out of Armenia. Convinced that these heavy-handed tactics were the source of the alienation of the native population to Soviet rule, in 1921 Moscow appointed an experienced administrator, Alexander Miasnikian, to carry out a more moderate policy and one better attuned to Armenian sensibilities. With the introduction of the New Economic Policy (NEP), Armenians began to enjoy a period of relative stability. Life under the Soviet rule proved to be a soothing balm in contrast to the turbulent final years of the Ottoman Empire. The Armenians received medicine, food, as well as other provisions from the central government and extensive literacy reforms were carried out.