1185

Prithu establishes the Khen dynasty and the Kamata kingdom.

1187

Birpal establishes Chutiya kingdom in Saditya.

1206

Muslims first attack Assam

1228

First Ahom king Sukafa enters Assam.

1252

Sukafa establishes first Ahom capital in Charaideo.

1449

Srimanta Sankardev is born.

1490

First Ahom - Kachari battle.

1498

Alauddin Hussain Shah of Gaur removes the last Khen ruler of Kamata Kingdom.

1515

Viswa Singha establishes Koch political power and Koch dynasty.

1522

Chutiya kingdom annexed to Ahom Kingdom under Suhungmung.

1527

Nusrat Shah's invasion, the first Muslim invasion of the Ahom Kingdom, ends in failure.

1532

Turbak attacks Ahom Kingdom, the first commander to enjoy some sucess.

1533

Turbak defeated and killed. Ahoms pursue Gaur army to Karatoya River.

1536

Ahoms king establishes capital in Gargaon.

1540

Nara Narayan succeeds his father to the throne of Kamata Kingdom.

1548

Assam witnesses davastating earthquake.

1563

Chilarai occupies Ahom capital Garhgaon, ends with Koch Ahom treaty.

1568

Srimanta Sankardev dies.

1581

Nara Narayana divides Kamata Kingdom into Koch Bihar and Koch Hajo (to be governed by Raghudev).

1587

Naranarayana of Koch dynasty dies.

1588

Raghudev, son of Chilarai and ruler of Koch Hajo declares independence.

1609

Momai Tamuli Borbarua restructures Paik system in Ahom kingdom.

1613

Koch Hajo is annexed by the Mughal Empire.

1615

Ahom - Mughal conflicts begin.

1637

Bali Narayan dies of natural causes, and Koch rebellion again Mughalscollapse.

1639

Treaty of Asurar Ali signed between the Ahom Kingdom and Mughal Empire.

1659

Ahoms take possession of Koch Hajo (up to Sankosh River). Koch Hajo was occupied by rulers of Koch Bihar earlier, who drove out the Mughal faujdar from Guwahati.

1662

Mir Jumla attacks Ahom Kingdom and occupies Garhgaon, the Ahom capital.

1663

After Treaty of Ghilajharighat Mir Jumla returns to Dhaka, dies on the way.

1667

Ahoms wrest Guwahati and extend control up to Manas River; begins defence preparations.

1668

Mughals under Ram Singh advance up to Guwahati to retake it.

1671

The battle of Saraighat between Ahom and Mughals. Ahoms under general Lachit Borphukan wins.

1681

Gadadhar Singha becomes Ahom King.

1682

Ahoms win battle at Itakhuli. End of Ahom - Mughal conflicts with Ahom win.

1714

Rudra Singha dies, and with his death the Kachari, Jaintia etc. grand alliance to remove the Mughals from Bengal.

1769

First phase of Moamoria rebellion, Ahom capital falls but recaptured in April, 1770.

1783

Ahom capital Rangpur fell the second time to Moamoria rebellion. Rebel leaders strike coins in the names.

1786

Third Moamoria rebellion.

1794

Captain Thomas Welsh restore Rangpur to Ahom king from Moamora rebels. The Ahom capital shift to Jorhat.

1805

Ahoms come to terms with Sarbananda, the last Moamora rebel leader holding out in Bengmara (Tinsukia). Ahom declare Sarbananda the Barsenapati of Matak Rajya.

1815

First Burmese Invasion of Assam.

1819

Second Burmese Invasion.

1821

Third Burmese Invasion.

1823

Tea leaves discovery in Assam.

1825

Crude Oil discovery in Assam.

1826

Treaty of Yandaboo signed between East India company and King of Burma; end of Burmese and beginning of British occupation of Assam.