structural:scholar_edition
While the Tibetan plateau has been inhabited since pre-historic times, most of Tibet's history went unrecorded until the creation of Tibetan script in the 7th century. Tibetan texts refer to the kingdom of Zhangzhung as the precursor of later Tibetan kingdoms and the originators of the Bon religion. While mythical accounts of early rulers of the Yarlung Dynasty exist, historical accounts begin with the introduction of Tibetan script from the unified Tibetan Empire in the 7th century. Following the dissolution of the empire and a period of fragmentation in the 9th-10th centuries, a Buddhist revival in the 10th–12th centuries saw the development of three of the four major schools of Tibetan Buddhism. After a period of control by the Mongol Empire and Yuan dynasty, Tibet became effectively independent in the 14th century and was ruled by a succession of noble houses for the next 300 years. In the 16th century, the Dalai Lama title was created by Altan Khan, and as requested by the family of Altan Khan, seal of authority was granted to the Dalai Lama by the Wanli Emperor. In the 17th century, the senior lama of the Gelug school, the Dalai Lama, became the head of state with the aid of the Khoshut Khanate. Seal of authority and golden sheets were granted by the Shunzhi Emperor to both the Dalai Lama and the founder Güshi Khan of Khoshut Khanate in 1653. In 1717, the Dzungar Khanate invaded Lhasa, killed Lha-bzang Khan of the Khoshut Khanate, Khoshut Khanate was destroyed. The Qing dynasty then sent military troops in the same year to fight with the Dzungars, but failed at this time. In 1720, the Qing dynasty sent troops for the second time and drove away the Dzungar army. It remained a Qing territory until the fall of the dynasty. In 1959, the 14th Dalai Lama went into exile in India in response to hostilities with the People's Republic of China (PRC). The PRC annexation and flight of the Dalai Lama created several waves of Tibetan refugees and led to the creation of Tibetan diasporas in India, the United States, and Europe. The Tibet Autonomous Region was established following the PRC annexation, although Tibetan independence and human rights emerged as international issues, gaining significant visibility alongside the 14th Dalai Lama in the 1980s and 1990s. Chinese authorities have sought to assert control over Tibet and has been accused of the destruction of religious sites and banning possession of pictures of the Dalai Lama and other Tibetan religious practices. During the crises created by the Great Leap Forward, Tibet was subjected to mass starvation due to the appropriation of Tibetan crops and foodstuffs by the PRC government. The PRC disputes these claims and points to their investments in Tibetan infrastructure, education, and industrialization as evidence that they have replaced a theocratic feudal government with a modern state.