found: Uttara Pūrva kā sāmarika mahattva, 2009:pref. (Sikkima)
found: GeoNames, algorithmically matched, 2009(adm1; 27°45ʹ00ʺN 088°30ʹ00ʺE)
found: Information from 678 converted Dec. 11, 2014(formerly a princely state; opted by a referendum on April 14, 1975 to join the Indian Union. By the Constitution, 36th Amendment Act, 1975, Sikkim became the 22nd State of the Indian Union since April 26, 1975)
found: Wikipedia, July 30, 2018(Sikkim; a state in northeast India; part of the Eastern Himalaya; Kingdom of Sikkim was founded by the Namgyal dynasty in the 17th century. It was ruled by a Buddhist priest-king known as the Chogyal. It became a princely state of British India in 1890. After 1947, Sikkim continued its protectorate status with the republic of India. In 1973, anti-royalist riots took place in front of the Chogyal's palace. In 1975, the monarchy was deposed by the people. A referendum in 1975 led to Sikkim joining India as its 22nd state)