Kumaon or Kumaun is one of the two regions and administrative divisions of the Indian state of Uttarakhand, the other being Garhwal. It includes the districts of Almora, Bageshwar, Champawat, Nainital, Pithoragarh, and Udham Singh Nagar. It is bounded on the north by Tibet, on the east by Nepal, on the south by the state of Uttar Pradesh, and on the west by the Garhwal region. The people of Kumaon are known as Kumaonis and speak the Kumaoni language. Historically ruled by the kings of Katyuri and Chand Dynasties, the Kumaon division was formed in 1816, when the British reclaimed this region from the Gorkhas, who had annexed the erstwhile Kingdom of Kumaon in 1790. The division initially consisted of three districts, Kumaon, Terai and Garhwal, and formed the northernmost frontier of the Ceded and Conquered Provinces in British India, that later became North Western Provinces in 1836, United Provinces of Agra and Oudh in 1902, and United Provinces in 1937. It is home to a famous Indian Army regiment, the Kumaon Regiment. Important towns of Kumaon are Haldwani, Nainital, Almora, Pithoragarh, Rudrapur, Kichha, Kashipur, Pantnagar, Mukteshwar and Ranikhet. Nainital is the administrative centre of Kumaon Division and this is where the Uttarakhand high court is located. Kumaon is believed to have been derived from “Kurmanchal”, meaning land of the Kurmavatar (the tortoise incarnation of Lord Vishnu, the preserver according to Hinduism). The region of Kumaon is named after as such. During the time of the British control of the region, between 1815 and 1857 it was also known as Kemaon.