History
The Brahmaputra valley was the kingdom of Kamarupa in the first millennium AD, remembered in early inscriptions and in the pilgrim accounts of the Chinese monk Xuanzang. In 1228 the Tai prince Sukaphaa crossed the hills from upper Burma and founded the Ahom kingdom, which ruled Assam for some six centuries. The Ahoms held off repeated Mughal invasions, most famously under the general Lachit Borphukan at the river battle of Saraighat in 1671, and left brick palaces and temple tanks around their capital near Sivasagar. Manipur had its own Meitei kingdom centred on Imphal, and Tripura was ruled by the Manikya dynasty, while the hills of the Nagas, Khasis, Garos, Mizos and many others were governed by village chiefs and councils.
Burmese invasions devastated Assam in the 1810s and 1820s, and the Treaty of Yandabo in 1826 handed it to the British East India Company. The British planted tea on a vast scale from the 1830s, found oil at Digboi, and brought labourers from central India to the gardens, while Christian missionaries converted much of the hill population. In 1944 the Japanese advance on India was stopped at the battles of Imphal and Kohima.
After 1947 the region was carved into states: Nagaland in 1963 after an armed Naga independence movement, Meghalaya in 1972, and Mizoram and Arunachal Pradesh in 1987, the year after the Mizo Accord ended two decades of insurgency. Arunachal Pradesh is administered by India, and China claims nearly four-fifths of it as South Tibet; Chinese forces occupied parts of it in the 1962 war before withdrawing. Assam's agitation against migration from Bangladesh ended in the 1985 Assam Accord, and since 2023 Manipur has been torn by conflict between Meitei and Kuki-Zo communities.
