Assam was known as 'Kamarupa' or 'Pragjyotish' in the period of the Epics. Human inhabitation of this area dates backs to about 2000 BC. The population of Assam comprises of the migrants from Burma and China. They came into Assam after the mongoloid migration. They came from Punjab through Bihar and North Bengal. Thus Assam presents a fusion of Mongol-Aryan culture. The early history of Assam is believed to be of the Varman dynasty. The reign of this dynasty extended from 400 AD to 13th century. The visit of Huien Tsang is said to have taken place during the 7th century at the time of Kumar Bhaskar Varman. The Ahoms ventured into Assam in about 1228 AD. By 15th century the kingdoms of Ahom and Koch were established. This period witnessed a change in all walks of life in Assam.
In the later part of the 18th century the Ahom Kingdom was weakened due to internal strife. The Burmese ran over the political authority in Assam thus invoking British intervention to subdue the Burmese. After a conflict between the Burmese and the English, peace was restored by the treaty of Yandaboo in 1826. The British then set out to organize the administration, transport and communication. Besides the various changes, the construction of railways; introduction of tea plantation, discovery of coal and oil etc. proved fruitful to the British during the World War II. After Independence of India, Assam witnessed several separation of territories. In 1948, NEFA (Arunachal Pradesh) was separated. In 1963 Nagaland was separated. In 1972 Meghalaya and in 1987 Mizoram.