A Timeline of Northeast Indian history

My attempt at making a Timeline on History of Northeast india I tried my best warning Heavy Biased towards Assam histroy if you want to add anything from histroy of your state comment down below **Prehistoric era** 50,000 BC-Pleistocene Stone Tools (Early Humans) Stone tools, including hand axes and cleavers, have been discovered in the Dapha Valley (Arunachal Pradesh) and parts of Assam, indicating human activity dating back 40,000 to 50,000 years ago 4,000 BC -Daojiling Hading in Assam is the Oldest Neolithic site found in Northeast possibly Austro-Asiatic culture 2,000 BC-Austro Asiatic pepole are present in Northeast India **Ancient Era** 1500 BCE-Tibeto-Burmans migrate from Tibet and Myanmar displacing or Assimilating Austro-Asiatic gradually With Remnants surviving in Khasi Jantia Hills 500 BCE-Indo-Aryans arrive in Western Brahmaputra Valley and Northern Bengal ,Pragjyotisha a Kingdom based in Assam is mentioned in Mahabharata 33 AD-Earliest mention of a Kingdom in Manipur with the reign of King Nongda Lairen Pakhangba who unified Various tribes in imphal Valley expect Moirang 350 AD-Varman Dynasty is established in Kamrupa another kingdom called Davaka is present in kopili valley 600 AD-Bhaskarvarman Becomes King of Kamrupa the last and it's most Glorious King 620 AD-Bhaskrvarman and His brother are taken captive by King of Gaur Shasanka later Released 625 AD-Bhaskarvarman forms a Alliance with Haravardhana of Pushyabhuti against Gaur 630 AD-Bhaskarvarman sacks Karnasurvana the Capital of Gaur and enacts Vengenece 635 AD- Xuanzang Chinese Buddhist monk Travels to Kamrupa during the Regian of Bhaskarvarman 655 AD-Collapse of Varman Dynasty independence of Gaur Laur and Jantia Kingdoms while Salasthamba (Mleccha) Dynasty takes power in Kamrupa 800 ADs-Possible raids by Meteis in Burma as well as migrations of Tanis into Present Arunachal displacing Akas? 900 AD-Salathmba Dynasty goes extinct Pala Dynasty comes to power through a election by Nobles? **MEDEVIAL Era** 1074 AD- Kamrupa declines due to invasion of Pala Dynasty of Bengal,Written constituting of Kangleipak is Developed by King Loyumba 1187-The Chutiya at Swarnagiri established rapidly expands into Lowlands of Arunachal and North Assam Plains 1206-First Muslim invasion of Assam replled by Prithu one of the last kings of Kamrupa Bhdrasena and Nyapal 1224-Chutiya annex Sonitpur based Princedoms 1228-Ahoms under Sukapha enter Assam Ahoms launch Brutal millitary campaigns against Nagas forms alliances with Borahis and Morans,Prithu is killed fighting Delhi Sultanate under Nasiruddin Muhhamed ,Chutiyas launch Millitary campaigns throughout Brahmaputra valley making Kamrupa declines even harder 1244-Chutiya move there Capital to Sadiya,Dimasa Kingdom established Bhuyan confederate in Habung 1252-Ahoms establish there capital at Charideo after moving throughout Habung and Sivsagar areas 1257-Sandhya Establish his Capital at Kamtapur leading to Formation of Kamta kingdom also Reples a Expedition by Turks under Malik Izubak 1272-Setupha the successors of Sukhapa defeated Kacharis and Shans of Mongkawng 1324-Ahoma defeat Kamta kingdom in a war marriage Alliance established between the two kingdoms later 1334-Ahoms expands towards Noadihing 1362-Sikender Shah invades kamata Kingdom weakening it's ruler Indranaryan 1369-Chutiya Give land Grants to Brahmins in Habung the Oldest recorded land Grants given to Brahmins tills Date in upper Assam,War Between Chutiya And Ahoms Ahom king assassinated by Chutiyas 1st Ahom Interregnum 1380-Battles between Ahoms and Chutiyas continue 1387-Tyao Khamti the Ahom king is assinated again Ahoms surrender large tracts of land to Chutiyas 2nd Ahom Interregnum 1397-Bamuni konwar Becomes Ahom king (Sudangpha) 1400 -Tripura kingdom established by Maha Manikya 1401-Ahoms Defeated Mongkawng and Tipam chefitans Ending Ahom vassalage to Shans 1420-Ahoms defeated Kacharis and Capture Jorhat and Northern Golaghat areas? 1431-Tripura Kingdom invaded By Bengal sultanate later Repulsed 1440-Ahoms battle Tangsha Nagas at request of Benfera Nagas Tanagshas later subdued 1443-Meteis Raid Shan States in Myanmar leading to Manipuri claims to Kabaw valley 1445-Civil war in Kamta kingdom,Baro-Bhuyans confederation established in Udalguri ,Darrang and Nogaon,First mention of Daflas (Nyshis in Historical records) 1449-Sankardeva is Born 1487-Ahoms and Tangsa battle Tho Tangsa are subdued again by Ahoms 1490-Ahoms are decisively Defeated By Kacharis (Dimasas) and Again by Chutiyas leading to Crisis in Ahom kingdom 1497-Suhungmung Becomes Ahom king and Restores Royal authority of the Ahom kingdom 1498-Bengal Sultanate under Hussain shah defeated and Annexed Kamata kingdom 1504-Ahoms suppressed a revolt by Aitonia Nagas 1509-Bengal Sultanate administration overthrowed by Assamese Bhuyans led by Harup Narayan 1512-Chutiyas Defeated by Ahoms Habung and Pambari annex by Ahoms 1515-Koch kingdom is Established by Biswa Singha although it a Just a Very minor state at this point With Disconnected territories 1516-Vijay Manikya II Becomes King of Tripura and it's most powerful Ruler till date 1520-The Chutias again attacked the Ahoms and occupied the areas up to Namdang and Mungkhrang,Meanwhile Koch expands Rapidly in Lower Assam defeating Bhuyans 1522-Ahoms defeated Chutiya And recaptured lost territories The Chutias were pursued further and their king and prince were killed in battle. Upon annexing the Chutia territories, the Ahoms came in contact with hill tribes like Miris, Abors, Mishmis and Daflas. Suhungmung established the office of the Sadiyakhowa Gohain and gave charge to Phrasengmung Borgohain to look after the newly acquired Sadiya region Vijaya Manikya defeated Dimasa and Capture Kachar plains from Dimasas? 1523-Ahoms Came in contact with Daflas Abors Miris and Mishimis 1524-Dimasa Kingdom raided by Koches Hojai plains devastated by Koch raids 1526-Ahoms invaded Dimasa kingdom and Take many forts from them 1527-A Muslim fleet is defeated by Ahoms 1531-Khunkhara, the Dimasa king, sent forces under his brother Detcha to drive the Ahoms away from Marangi but the Kachari army was defeated and their commander killed ,Dimapur is Sacked by Ahoms it's population Put to death or enslaved 1533-Dimasa retreat to Hills and from Maibang to escape Ahom aswell as Koch onslaughts ,Turbuk a Muslim general invades Ahom kingdom but is later defeated and pursued till Karatoya river Suhungmung also takes 2 Daughter of Sultan of Bengal as Concubine 1534-Koch accepts to become feudal Vassels of Ahoms are also the Most powerful Vassal of Ahom kingdom 1535-Koches conduct Slave raids into Dimasa territories Hojai is again Devastated 1539-Vijaya Manikya Rapidly Expands Tripura kingdom after Defeating Bengal sultanate and Chakmas 1540-Suhumung Swarganaryan is Killed by his own Son suklen ,Biswa Singha the Koch king Dies ,Succession crisis in Koch kingdom ,Suklenmung Becomes Ahom king 1445-Civil war devastate the Koch kingdom as All Rival Hosuse and Brothers compete for throne Ahom inaction against there Vassals 1548-Rough Koch armies and Raiding Parties defeated by Ahoms 1554-Naranaryan And Chilarai Jointly reunite the Koches after a 14 year long Civil war 1555-Koches threw of there Vassalage and Invade Ahom kingdom tho Repulsed 5 ,000 Koch heads taken by Ahoms 1561-Koch again invades Ahom although suffering minor setbacks The Kochs Capture Lakhxhuwa (Naryanpur) in just 2 days ,Ahoms crushed at Battle of Dikhowmukh by Koches Sukhmaphha the Ahom king retreats to Naga Hills 1562-Treaty of Majuli between Ahoms and Koches ,Koches continue there conquest Dimasa kingdoms and Manipur kingdoms surrender without a Fight,Jaintias Army and there king are killed by Koches 1563-Vijaya Manikya is Killed Fighting the Koches Kachar plains annexed to Koch kingdom Tripura kingdom goes into Decline ,The Governors of sylhet is Killed in a duel against Chilarai the Koch commander and his head is taken as a trophy by Koches 1563-Koch kingdom is defeated by Bengal sultanate ,Later forest Alliance with Mughals and continue raiding Bengal 1570-Koch under Chilarai reforges army and Raid Bengal again in Alliance with Mughals 1577-Chilarai dies at Bankas of Ganges River 1581-Koch kingdom split into 2 Competing Branches 1586-Kingdom of Khampat is Destroyed leading to Migration of Zo pepoles into Hills those remaining in low lands are either killed or enslaved by Shans 1587- Koch Hajo and Koch Bihar weaken eachother in extreme combats Ahoms recaptured lost Koch territories Like Naryanpur 1589-Fianl Koch Expedition Repulsed by Ahoms at Dhansiri 1590-Mishings Raid Ahoms territories in Dhemaji ,Ahoms counteraid and Defeat the Mishings turning them into Ahom subjects expect the Hill miris 1598-Khagemba Becomes King of Manipur 1603-Pratap Singha Becomes Ruler of Ahom kingdom 1609-Koch Bihar Becomes Mughal Vassal after it's army is Destroyed by Koch Hajo 1613-Mughals invade Koch Hajo and annex it 1615-Ahom Mughal conflicts began Ahoms defeated Mughals at Battle of Bharali 1616-Ahoms defeat Mughals again at Samdhara 1621-Ahoms Defeat Mughals at Suwalkuchi 1631-Meteis defeat the Chinese under Khagemba? 1637-Dharmanaryan the Koch Prince of Darrang dies ,Koch resistance against Mughals collapse 1639-Treaty of Asurarali between Ahoms and Mughals 1549-Khagmba Of Manipur defeat Shans and Tripuris 1659-Ahoms formley annex Koch Hajo and make it a Borphukan 's Domain With HQs at Kalibor and Guwahati expect Koch Princes of Darrang and Beltola remain as Vassals to Ahom king 1663-Ahom kingdom is defeated by Mughals under Mir Jhumla,Treaty of Ghilajirighat between Ahoms and Mughals 1667-Ahoms recaptured Guwahati led by Lachit Borphukan 1668-Mughals led by Ram Singh recaptures Guwahati 1671-Battle of Saraighat Mughal army defeted and Chased till Manas river 1675-Ahoms are defeated by Daflas in a Campaign 1678-Succseion crisis in Ahom kingdom 1679-Ahoms abandon Guwahati under Lauluksola Borphukan who has become a kingmaker 1681-Gadadhar Singha Becomes Ahom King establishing the Tungkhungia House which will rule till end of Ahom kingdom 1682-Ahom retake Guwahati and Capture land upto Manas and Manukachar from Mughals ,Khasis first mentioned in Ahom records as tribe living South of The Fortress of Guwahati 1696-Rudra Singha Becomes the Ahom king,Golden Age of Ahom kingdom begins 1706-Daflas and Several other Hill tribes are defeated by Ahoms 1708-Ahoms defeat and vassalage Dimasa kingdom 1709-Ahoms defeat Jaintia kingdom and Sack Jantiapur 1714-Rudra Singha dies and with him the Ahom plan to conquer Bengal too ,Pamheiba Becomes King of Manipur and converts to Hinduism and Burns down Puys He made the Gaudiya Vaishnava faith the state religion, replacing Meitei religion, made the Meitei language (aka Manipuri language) written in Bengali script, destroying many documents of Meitei language written in Meitei script and changed his name to Garib Niwaj 1721-Queen Phuleswrai of Ahom kingdom Persecutes Moamaoria Monastery 1725-Kangleipak renamed to Manipur 1740-Manipur raids Sagiagang and Several other places in central Burma 1754-Manipur is Occupied by Burmese Meitei king Bhagyachandra sought help from the British, but when the British refused help he went to Ahom King Rajeswar Singha who sent a force of 40,000 under Haranath Senapati Phukan to free Manipur. A treaty of alliance was negotiated in 1762 the Joint Ahom Manipuri Alliance defeated the Burmese occupiers 1769-1st Moamoria Rebellion begans Ahom capital Rangpur is Sacked 1783-2nd Moamaoria Rebellion Rangpur fell again to Moamorias Ahoms lose control of entire upper Assam Khamtis occupy Sadiya in Alliance with Moamorias taking advantage of the Crisis in Ahom kingdom 1794-Captain Thomas Welsh restores Rangpur to Ahom king from Moamora rebels 1805-Ahoms come to terms with Sarbananda, the last Moamora rebel leader holding out in Bengmara (Tinsukia). Ahoms declare Sarbananda the Barsenapati of Matak Rajya 1810-Ahom recaptured Sadiya from Khamtis 1817-1st Burmese invasions of Assam 1819-2nd Burmese invasions of Assam 1821-3rd Burmese invasions of Assam **MODERN ERA** 1826-Treaty of Yandaboo Assam,Manipur,Kachar annexed by British 1829-Anglo-khasi war lead by Tirot Singha Meghalaya annexed by British 1836-Ahom kingdom formally annexed by British ,Ahom Rebellion led by Gomdhar konwar 1837-Dimasa kingdom annexed by British 1840-Sadiya frontier campaigns against Matak kingdom Khamtis of Sadiya and Singphos confederations by British 1855-Duar war Assam duars annex by British from Bhutan 1857-Maniram Dewan Hanged for Plotting against British 1870-Anglo-Naga wars annexation of Naga Hills into British while Eastern Nagaland remains a frontier tract 1874-Assam Becomes a Separate province 1890-Brtish pacifiy Mizo tribes 1891-Anglo-Manipuri war 1905-Partion of Bengal 1919-Anglo-Kuki war 1947-Independence of India ,Manipur is annexed by ROI,Refuge crisis 1963-Nagaland Becomes a Separate state 1966-MNF uprising 1970-Assam Movement 1971-Manipur,Mizoram,Arunachal,Meghalaya Becomes states previously union territories Sikkim annex into India 1979-ULFA is established 1983-Nellie Massacre 1984-Assam accord 1989-Gohpur massacre 1990s-Operation Bajarang by Indian army ,Bodoland movement ,Kuki-Naga clashes,Kuki-Zomi clashes in Manipur 2001-Operation Rhino by Bhutanese army against millitansts and Communists 2002-Kuki-Karbi clashes in Assam 2017-Present -Eastern Nagaland movement 2023-Present Kuki-Metei conflict