The Ahom Kingdom (1228–1826, called Kingdom of Assam in medieval times) was a medieval kingdom in the Brahmaputra valley in Assam that maintained its sovereignty for nearly 600 years and successfully resisted Mughal expansion in North-East India. It was able to establish its suzerainty over the Brahmaputra valley and had a profound effect on the political and social life in the region.
The founder of the dynasty was Sukhapaa (1228-1262). Under him the Buranji [historical chronicle writing in Ahom] started. But it was during the reign of Sukhangpha that territorial expansion was done at the expense of neighbouring kingdom of Kamata. During the reign of Sudangpha in early fifteenth century, the influence of Brahmanical Hinduism began to gain ground in the Ahom society. The greatest Ahom king was Suhungmung who repelled the successive invasions of Sultans of Bengal. His reign is remarkable not only for rapid Hindus-isation of the Ahoms but also for the spread of a reformed Vaishnava doctrine associated with the name Sankaradeva.
The Ahom king did not join the mainstream of Indian history till the seventeenth century when it became the target of Mughal invasions.
