Important Years & Landmark Events in Assam
| Year | Major Events Associated with Assam |
|---|---|
| 1671 | Battle of Saraighat — Ahom forces under Lachit Borphukan defeated the Mughal forces. |
| 1769 | Beginning of the Moamoria Rebellion, which significantly weakened the Ahom kingdom. |
| 1817 | First Burmese invasion of Assam. |
| 1821 | Burmese occupation of Assam became substantially complete. |
| 1826 | Treaty of Yandabo signed on 24 February; Burmese claims over Assam ended and British political control began. |
| 1828 | Gomdhar Konwar’s revolt against British rule. |
| 1830 | Piyali Phukan and other anti-British conspirators were punished; Piyali Phukan was executed. |
| 1837 | Bengali introduced as the language of administration/education in Assam under British rule. |
| 1839 | Assam Company established, marking an important stage in the commercial development of Assam tea. |
| 1846 | First issue of Orunodoi (Arunodoi), the pioneering Assamese periodical, published from Sivasagar. |
| 1858 | Maniram Dewan and Piyali Barua executed for their role connected with the Revolt of 1857 in Assam. |
| 1861 | Phulaguri Dhawa — major peasant uprising in Nagaon against British taxation. |
| 1873 | Assamese restored as the official language in Assam. |
| 1874 | Assam separated from Bengal and constituted as a Chief Commissioner’s Province; Shillong became its capital. |
| 1889 | Jonaki magazine began publication, associated with the rise of modern Assamese literature. |
| 1894 | Patharughat uprising (Patharughatar Ran) against enhanced land revenue; peasants were fired upon by colonial forces. |
| 1897 | Great Assam Earthquake. |
| 1901 | Cotton College established in Guwahati Digboi Refinery began operations around this period. |
| 1903 | Assam Association established, an important early political organisation of Assam. |
| 1905 | Partition of Bengal; Assam became part of the new province of Eastern Bengal and Assam. |
| 1912 | Partition arrangement reversed Chief Commissionership of Assam revived. |
| 1917 | First session of Assam Sahitya Sabha, held at Sivasagar; Padmanath Gohain Baruah was its first president. |
| 1921 | Mahatma Gandhi visited Assam during the Non-Cooperation Movement Assam became a Governor’s Province. |
| 1926 | Dr. Bhupen Hazarika born at Sadiya on 8 September 41st Session of the Indian National Congress held at Pandu, Guwahati Assam Pradeshik Mahila Samiti was established |
| 1927 | Ghar Jeuti, an important early Assamese women’s magazine, began publication. |
| 1935 | Joymoti, the first Assamese feature film, made by Jyotiprasad Agarwala, was released. |
| 1937 | Provincial autonomy under the Government of India Act, 1935 came into operation Muhammad Saadulla headed a ministry in Assam. |
| 1940 | Assam State Museum established in Guwahati. |
| 1942 | Quit India Movement in Assam Kanaklata Barua and Mukunda Kakoti were killed while attempting to hoist the national flag at Gohpur police station. |
| 1943 | Freedom fighter Kushal Konwar executed by the British. |
| 1946 | Gopinath Bordoloi became Premier of Assam again; crucial period of opposition to the Cabinet Mission’s Grouping Plan. |
| 1947 | India became independent Most of Sylhet became part of East Pakistan following the referendum Assam Medical College established at Dibrugarh. |
| 1948 | Gauhati University established. |
| 1950 | Assam Earthquake of 1950 (Assam–Tibet earthquake), one of the strongest recorded earthquakes in the region. |
| 1955 | Gauhati High Court came into existence in its present institutional lineage as the High Court of Assam. |
| 1960 | Assam Official Language Act, 1960 enacted, providing for Assamese as the official language of the state subject to statutory provisions/exceptions. |
| 1962 | Sino-Indian War; NEFA became a major theatre of the conflict. |
| 1963 | Nagaland became a separate State, carved out from Assam. |
| 1965 | Dibrugarh University established. |
| 1967 | All Assam Students’ Union (AASU) established in its present form. |
| 1969 | Assam Agricultural University established at Jorhat. |
| 1972 | Meghalaya became a full-fledged State; major territorial and administrative reorganisation of Northeast India. |
| 1973 | Capital of Assam shifted from Shillong to Dispur following Meghalaya’s formation. |
| 1979 | Beginning of the Assam Movement/Assam Agitation, centred on the foreigners issue. |
| 1985 | Assam Accord signed on 15 August 1985, bringing the six-year Assam Movement to an end; Asom Gana Parishad (AGP) subsequently came to power. |
| 1985 | Kaziranga National Park was inscribed as a UNESCO World Heritage Site. |
| 1987 | Kolia Bhomora Setu over the Brahmaputra inaugurated. |
| 1990 | ULFA banned and major counter-insurgency operations began in Assam. |
| 2003 | Bodoland Territorial Council (BTC) created following the Bodo Accord of 2003. |
| 2011 | Dr. Bhupen Hazarika died on 5 November. |
| 2020 | Bodo Peace Accord/BTR Accord signed, leading to restructuring of the Bodoland Territorial Area Districts as the Bodoland Territorial Region (BTR). |