Arunachal Pradesh is a State of India, located in the far northeast. It borders the states of Assam and Nagaland to the south, and shares international borders with Burma in the east, Bhutan in the west, and the People's Republic of China in the north. The majority of the territory is claimed by the People's Republic of China as part of South Tibet. The northern border of Arunachal Pradesh reflects the McMahon Line, a controversial 1914 treaty between the United Kingdom and a Tibetan government, which was never accepted by the Chinese government, and not enforced by the Indian government until 1950. Itanagar is the capital of the state.Recorded history from an outside perspective only became available in the Ahom chronicles of the 16th century. The Monpa and Sherdukpen do keep historical records of the existence of local chiefdoms in the northwest as well. Northwestern parts of this area came under the control of the Monpa kingdom of Monyul, which flourished between 500 B.C. and 600 A.D.

This region then came under the loose control of Tibet and Bhutan, especially in the Northern areas. The remaining parts of the state, especially those bordering Myanmar, came under the titular control of the Ahom and the Assamese until the annexation of India by the British in 1858. However, most Arunachali tribes remained in practice largely autonomous up until Indian independence and the formalization of indigenous administration in 1947.