| 29 Nov 1920 |
the Socialist Soviet Republic of Armenia is proclaimed in accordance with a declaration issued by the Revolutionary Committee on 29 Nov 1920 (Communist - Armenian edition, No. 2, 7 Dec 1920, p. 1) |
| 29 Nov 1920 - 5 Dec 1936 |
Hayastani Socʻialistakan Xorhrdayin Hanrapetoutʻyoun (Հայաստանի Սոցիալիստական Խորհրդային Հանրապետություն) | Socialist Soviet Republic of Armenia [1] |
| 9 Dec 1920 |
Armenian is recognized as the state language in accordance with a decree of the Revolutionary Committee issued on 9 Dec 1920 (Armenian SSR Decrees and Orders Collection, No. 1, 29 Nov 1920 - 18 Feb 1921, p. 7) |
| 12 Mar 1922 |
Armenia, Azerbaijan and Georgia constituted a military, political and economic union in accordance with a treaty approved by the conference of representatives of the republics in Tiflis (now Tbilisi, Georgia) on 12 Mar 1922 (Communist, No. 43, 23 Feb 1922, pp. 2-3; Communist, No. 58, 14 Mar 1922, p. 1; Life of Nationalities, No. 6/7, 14 Apr 1922, p. 16) |
| 13 Dec 1922 |
Armenia formed part of the Transcaucasian SFSR upon the approval of the draft of the Constitution of the Transcaucasian Socialist Federative Soviet Republic by the Congress of Councils of Transcaucasia on 13 Dec 1922 in Baku (Dawn of the East, No. 151, 15 Dec 1922, pp. 1-2) |
| 29 Dec 1922 |
the Russian SFSR, Ukrainian SSR, Byelorussian SSR and Transcaucasian SFSR constituted a federation in accordance with the Declaration of the Creation of the Union of the Soviet Socialist Republics and the Treaty on the Creation of the Union of the Soviet Socialist Republics adopted by the plenipotentiaries of the Soviet republics at the conference held on 29 Dec 1922 in Moscow (Izvestija, No. 297, 30 Dec 1922, p. 1) [2] |
| 30 Dec 1922 |
the Declaration and the Treaty on the Establishment of the Union of the Soviet Socialist Republics are approved by the Congress of Councils of the USSR held on 30 Dec 1922 in Moscow (USSR First Congress of Councils Proceedings 1922, pp. 4-12; USSR First Congress of Councils Resolutions 1922, pp. 3-7) |
| 5 Dec 1936 |
the Armenian Soviet Socialist Republic is named a constituent republic of the Union of Soviet Socialist Republics in accordance with the Constitution (Basic Law) of the USSR (Konstitucija (Osnovnoj Zakon) Sojuza Sovetskih Socialističeskih Republik | Конституция (Основной Закон) Союза Советских Социалистических Республик) adopted by the Extraordinary All-Union Congress of Councils on 5 Dec 1936 in Moscow (USSR Eighth Congress of Councils Proceedings 1936, Bulletin No. 12, pp. 38-39; USSR Eighth Congress of Councils Proceedings 1936, Constitution, pp. 1-20) [3] |
| 5 Dec 1936 - 22 Aug 1940 |
Haykakan Xorhrdayin Socʻialistakan Hanrapetoutʻyoun (Հայկական խորհրդային Սոցիալիստական Հանրապետություն) | Armenian Soviet Socialist Republic [4] |
| 22 Aug 1940 |
the words xorhrdayin (խորհրդային) and hanrapetoutʻyoun (հանրապետություն) in the Armenian language are replaced with sovetakan (սովետական) and ṙespoublika (ռեսպուբլիկա) in accordance with a regulation approved by the People's Commissariat of Enlightenment of the Armenian SSR on 22 Aug 1940 (Armenian SSR People's Commissariat of Enlightenment Regulations, No. 9, 1940, p. 5; Kommunist, No. 200, 28 Aug 1940, p. 1) |
| 22 Aug 1940 - 1966 |
Haykakan Sovetakan Socʻialistakan Ṙespoublika (Հայկական Սովետական Սոցիալիստական Ռեսպուբլիկա) | Armenian Soviet Socialist Republic [4] |
| 1966 - 25 Jun 1989 |
Haykakan Sovetakan Socʻialistakan Hanrapetoutʻyoun (Հայկական Սովետական Սոցիալիստական Հանրապետություն) | Armenian Soviet Socialist Republic [4] |
| 25 Jun 1989 |
the word sovet (սովետ) and its derivatives are replaced with xorhourd (խորհուրդ) and relevant derivatives in the text of the Constitution of the Armenian SSR and other legislative acts in accordance with a law passed by the Supreme Council of the Armenian SSR on 25 Jun 1989 (Armenian SSR Supreme Council Records - Armenian edition, No. 12, 30 Jun 1989, p. 116) |
| 25 Jun 1989 - 23 Aug 1990 |
Haykakan Xorhrdayin Socʻialistakan Hanrapetoutʻyoun (Հայկական Խորհրդային Սոցիալիստական Հանրապետություն) | Armenian Soviet Socialist Republic [4] |
| 23 Aug 1990 |
the Armenian SSR is renamed the Republic of Armenia and proclaimed a sovereign state in accordance with the Declaration of Independence adopted by the Supreme Council of the Armenian SSR on 23 Aug 1990 (Republic of Armenia Supreme Council Records, No. 16, 31 Aug 1990, pp. 4-6; Golos Armenii, No. 188, 25 Aug 1990, p. 1) |
| 24 Aug 1990 |
the Armenian SSR is renamed the Republic of Armenia in accordance with a law passed by the Supreme Council of the Armenian SSR on 24 Aug 1990 (Republic of Armenia Supreme Council Records, No. 16, 31 Aug 1990, p. 6; Golos Armenii, No. 188, 25 Aug 1990, p. 1) |
