Part XXXI — A Chronology of Armenian Independence
The following chronology brings together major developments in Armenian statehood, national identity, and modern sovereignty.
| Date | Historical event |
| ----------------------- | ---------------------------------------------------------------------------- |
| c. 190 BCE | Artaxias I establishes the Artaxiad kingdom |
| 95–55 BCE | Reign of Tigranes the Great |
| Early 4th century CE | Armenia adopts Christianity as a state religion, traditionally dated to 301 |
| 387 | Armenia partitioned between Roman and Sasanian spheres |
| c. 405 | Creation of the Armenian alphabet |
| 428 | Abolition of the Arsacid monarchy in Persian Armenia |
| 451 | Battle of Avarayr |
| 885 | Restoration of Armenian kingship under Ashot I Bagratuni |
| 961 | Ani becomes the Bagratid capital |
| 1045 | Byzantine annexation of Ani |
| 1198–1199 | Coronation of Leo I of Cilician Armenia |
| 1375 | Fall of the Armenian Kingdom of Cilicia |
| 1639 | Treaty of Zuhab helps establish the Ottoman-Persian frontier |
| 1720s | David Bek's resistance in Syunik |
| 1828 | Treaty of Turkmenchay places eastern Armenian territories under Russian rule |
| 1878 | Treaty of Berlin addresses reforms in Armenian-inhabited Ottoman provinces |
| 1885 | Founding of the Armenakan Party |
| 1887 | Founding of the Hunchakian Party |
| 1890 | Founding of the Armenian Revolutionary Federation |
| 1894–1896 | Hamidian massacres |
| 1909 | Adana massacres |
| 1915–1916 | Principal period of the Armenian Genocide |
| 1917 | Russian revolutions undermine imperial authority in the Caucasus |
| May 1918 | Battles of Sardarapat, Bash Abaran, and Karakilisa |
| May 28, 1918 | Establishment of the First Republic of Armenia |
| June 4, 1918 | Treaty of Batum |
| 1919 | Founding of Yerevan State University |
| August 10, 1920 | Treaty of Sèvres |
| November 22, 1920 | Wilson's arbitral boundary determination |
| December 1920 | Sovietization and collapse of the First Republic |
| 1921 | February Uprising; treaties of Moscow and Kars |
| 1922 | Armenia becomes part of the Transcaucasian Soviet federation and the USSR |
| 1936 | Armenian SSR becomes a separate Soviet union republic |
| 1965 | Major genocide commemoration demonstrations in Yerevan |
| 1988 | Beginning of the Karabakh Movement; Spitak earthquake |
| August 23, 1990 | Adoption of Armenia's Declaration of Independence |
| September 21, 1991 | Independence referendum |
| September 23, 1991 | Formal declaration of independence |
| October 16, 1991 | Levon Ter-Petrosyan elected president |
| December 1991 | Dissolution of the Soviet Union |
| March 2, 1992 | Armenia joins the United Nations |
| November 22, 1993 | Introduction of the Armenian dram |
| May 1994 | Ceasefire in the First Nagorno-Karabakh War |
| July 5, 1995 | Adoption of the Armenian Constitution |
| 1998 | Robert Kocharyan becomes president |
| October 27, 1999 | Armenian parliament shooting |
| 2008 | Serzh Sargsyan becomes president; March 1 political violence |
| 2015 | Constitutional amendments strengthen the parliamentary system |
| April–May 2018 | Velvet Revolution and election of Nikol Pashinyan as prime minister |
| September–November 2020 | Second Nagorno-Karabakh War |
| September 2022 | Major Armenia-Azerbaijan border clashes |
| September 2023 | Azerbaijani offensive and mass displacement of Nagorno-Karabakh Armenians |
| 2024 | Armenia-Azerbaijan border delimitation developments |
| August 8, 2025 | Washington peace summit and initialing of a draft peace agreement |
| September 21, 2026 | Armenia commemorates 35 years of independence |