Northeast India when they became relatively isolated from traditional trading partners such as Bhutan and Myanmar. Many of the peoples in present-day Mizoram, Meghalaya and Nagaland converted to Christianity under the influence of British (Welsh) missionaries. In the early 19th century, both the Ahom and the Manipur kingdoms fell to a Burmese invasion. The ensuing First Anglo-Burmese War resulted in the entire region coming under British control. In the colonial period (1826–1947), North East India was made a part of Bengal Province from 1839 to 1873, when Assam became its own province. After Indian Independence from British Rule in 1947, the Northeastern
Cornwallis in India each governed by a separate presidency, the Bengal region, including Calcutta, had come under the direct rule of the British East India Company in 1757, with authority to levy taxes, and its presidency dominated the others. Its civil head, the Governor-General of Fort William, ranked ahead of those of Madras and Bombay. Cornwallis quickly established himself as a transformational leader. British colonial administration was dominated in the 1760s and 1770s by Warren Hastings, the first man to hold the title of Governor-General. The military arm of the East India Company was directed during the Seven Years' War and the Second