| Year | Ancient Assam (350 - 1206) | Contemporaneous events | Date source |
|---|
| 350 | Pushyavarman establishes theVarman dynasty inKamarupa | | (Barpujari 1990:94) |
| 636 | Xuanzang visits the court ofBhaskarvarman in Kamarupa. | | |
| 650 | Bhaskarvarman dies. End of Varman dynasty | | |
| 655 | Salasthamba establishesMlechchha dynasty inKamarupa | | |
| 900 | Brahmapala establishesPala dynasty inKamarupa | | |
| c1100 | Jayapala, the lastPala king removed byRamapala ofPala empire | | |
| 1187 | Birpal establishesChutiya kingdom at Swarnagiri | | |
| Year | Medieval Assam (1206–1826) | Contemporaneous events | Date source |
|---|
| 13th century |
| 1206 | The first Muslim invasion,Bakhtiar Khilji is thwarted and his army destroyed. Beginning of the medieval period in Assam | | |
| 1228 | Sukaphaa enters Assam | | (Gogoi 1968:265) |
| 1224 | Ratnadhwajpal the second Chutiya king annexes the Kingdoms of Bhadrasena and Nyayapal | | |
| 1228 | Chutiya kingdom expedition against Kamatapur | | |
| 1248 | Ratnadhwajpal establishes his capital atSadiya | | |
| 1252 | Sukaphaa establishes capital atCharaideo | | (Gogoi 1968:265) |
| 1257 | Sandhya, a ruler of Kamarupa, moves his capital west and thus established theKamata kingdom. | | |
| 14th century |
| 1362 | Sikandar Shah attacksKamata kingdom and weakens the ruler Indranarayan[citation needed] | | |
| 1392 | Chutia king Satyanarayan's first land grant record inHabung. This is the first recorded land grant given to Brahmins in Upper Assam found till date. | | (Neog 1977:816) |
| 15th century |
| 1449 | Srimanta Sankardev is born | | |
| 1490 | FirstAhom-Dimasa battle. Ahoms defeated under Konkhra and pursued for peace. | | |
| 1498 | Alauddin Hussain Shah ofGaur removes the lastKhen ruler ofKamata kingdom | Vasco da Gama lands atCalicut | (Barpujari 1992:47) |
| 16th century |
| 1515 | Viswa Singha establishes Koch political power andKoch dynasty | | (Barpujari 1992:70) |
| 1520 | Ahoms defeated byChutiya king Dharmadhwajpal | | |
| 1524 | Chutiya kingdom partially annexed to Ahom Kingdom underSuhungmung, and placed under the rule ofSadiyakhowa Gohain. | | (Gogoi 1968:287) |
| 1527 | Nusrat Shah's invasion, the first Muslim invasion of theAhom kingdom, ends in failure. | | (Barpujari 1992:133) |
| 1532 | Turbak attacks Ahom Kingdom, the first commander to enjoy some success. | | |
| 1533 | Turbak defeated and killed. Ahoms pursue Gaur army to Karatoya river. | | |
| 1536 | Ahoms destroyDimapur, the capital of theKachari kingdom | | |
| 1540 | Nara Narayan succeeds his father to the throne ofKamata kingdom | | |
| 1563 | Chilarai occupies Ahom capital Garhgaon, end withTreaty of Majuli. | | (Barpujari 1992:79–80) |
| 1568 | Srimanta Sankardev dies | | |
| 1581 | Nara Narayana dividesKamata kingdom intoKoch Bihar andKoch Hajo (to be governed by Raghudev) | | (Barpujari 1992:94) |
| 1587 | Naranarayana ofKoch dynasty dies. | | (Barpujari 1992:74) |
| 1588 | Raghudev, son ofChilarai and ruler ofKoch Hajo declares independence | | (Barpujari 1992:95) |
| 17th century |
| 1609 | Momai Tamuli Borbarua restructuresPaik system inAhom kingdom. | | |
| 1609 | Koch Bihar becomes a Mughal vassal | | (Barpujari 1992:98) |
| 1613 | Koch Hajo is annexed by theMughal Empire | | (Barpujari 1992:103) |
| 1615 | Ahom-Mughal conflicts begin | | (Barpujari 1992:148) |
| 1637 | Bali Narayan dies of natural causes, and Koch rebellion again Mughals collapse | | (Barpujari 1992:161) |
| 1639 | Treaty of Asurar Ali signed between theAhom kingdom andMughal Empire | | (Barpujari 1992:164) |
| 1659 | Ahoms take possession ofKoch Hajo (up to Sankosh river). Koch Hajo was occupied by rulers ofKoch Bihar earlier, who drove out the Mughal faujdar from Guwahati | | (Barpujari 1992:165) |
| 1662 | Mir Jumla occupiesGarhgaon, theAhom capital | | (Barpujari 1992:177–178) |
| 1663 | AfterTreaty of GhilajharighatMir Jumla returns to Dhaka, dies on the way | | (Barpujari 1992:188–189) |
| 1667 | Ahoms wrestGuwahati and extend control up to Manas river; begins defence preparations | | (Barpujari 1992:207) |
| 1668 | Mughals under Ram Singh I advance up toGuwahati to retake it | | (Barpujari 1992:211) |
| 1671 | Ahoms winBattle of Saraighat andRam Singh I retreats to Rangamati | | (Barpujari 1992:227) |
| 1679 | Laluksola Borphukan desertsGuwahati | | (Barpujari 1992:245) |
| 1681 | Gadadhar Singha becomesAhom swargadeo | | (Barpujari 1992:252) |
| 1682 | Ahoms winBattle of Itakhuli. End ofAhom-Mughal conflicts with Ahom win | | (Barpujari 1992:253–256) |
| 18th century |
| 1714 | Rudra Singha dies, and with him dies theKachari,Tiwa,Jaintia etc. grand alliance to remove the Mughals from Bengal | | (Gogoi 1968:503–507) |
| 1769 | First phase ofMoamoria rebellion, Ahom capital falls but recaptured in April, 1770 | | |
| 1783 | Ahom capitalRangpur fell the second time toMoamoria rebellion. Rebel leaders strike coins in their names | | (Baruah 1993:90) |
| 1794 | Captain Thomas Welsh restoresRangpur to Ahom king fromMoamora rebels | | (Baruah 1993:133) |
| 19th century |
| 1805 | Ahoms come to terms with Sarbananda, the lastMoamora rebel leader holding out in Bengmara (Tinsukia). Ahoms declare Sarbananda theBarsenapati of Matak Rajya | | (Baruah 1993:164) |
| 1817 | The firstBurmese invasion of Assam. Burmese occupation was complete by 1821 | | (Baruah 1993:213) |
| Year | Colonial Assam (1826–1947) | Contemporaneous events | Date source |
|---|
| 1826 | Treaty of Yandaboo signed betweenEast India Company and King ofBurma; end of Burmese and beginning ofBritish occupation of Assam | | (Barpujari 1992:363) |
| 1861 | Phulaguri Dhawa, the first peasant uprising against British rule was repressed | | |
| 1894 | Patharughatraijmel fired upon, villagers tortured and property confiscated | | (Guha 1977:53–54) |
| Year | Post Colonial Assam (1947-) | Contemporaneous events | Date source |
|---|
| 1979 | Assam agitation begins | | |
| 1985 | Assam Accord signed. End ofAssam agitation | | |
