Indo-Aryan peoples
The roots of culture in Assam goes back almost five thousand years when the first wave of humans, the Austroasiatic people reached the Brahmaputra valley. They mixed with the later immigrant Tibeto-Burman and the Indo-Aryan peoples in prehistoric times. The last wave of migration was that of the Tai/Shan who later formed the idea of Assamese culture and its identity. The Ahoms, later on, brought some more Indo-Aryans like the Assamese Brahmins and Ganaks and Assamese Kayasthas to Assam.