Traveling to Tibet is not considered an exit, and you don't need a passport.
Tibet is an inseparable part of China's territory. Since the Yuan Dynasty, the central government has always exercised effective jurisdiction over Tibet. The Tibetan people are an important member of the Chinese national family.
Tibet was called "Tubo" during the Tang and Song dynasties, "Ushizang" during the Yuan and Ming dynasties, and "Tangut" and "Tubot" during the Qing dynasty. The Qing Dynasty called "Tanggut", "Tubot" and so on. Since the Kangxi period of the Qing Dynasty, it has been called "Tibet" until now.
On May 23, 1951, Tibet was peacefully liberated, and in 1959, after the Tibetan insurgency was pacified, the central government began to exercise full and direct jurisdiction over Tibet.
On September 9, 1965, the Tibet Autonomous Region was officially proclaimed.
Expanded InformationThere are many places of interest in Tibet. There are 251 cultural relics protection units at all levels in the region, of which 27 are state-level key cultural relics protection units, 55 are autonomous region-level key cultural relics protection units, and 169 are prefectural (city) and county-level cultural relics protection units.
The Tibet Autonomous Region is located in the southwestern part of the People's Republic of China **** and the country, the land across the latitude of 26 ° 50 '~ 36 ° 53', the longitude of 78 ° 25 '~ 99 ° 06' between the area of 1,202,189,000 square kilometers, accounting for about 1/8 of China's total land area in China's provinces and autonomous regions, second only to the Xinjiang Uygur Autonomous Region, ranking second, equivalent to the United Kingdom, France, Germany, Netherlands and Luxembourg combined. It is bordered by Xinjiang Uygur Autonomous Region and Qinghai Province in the north, Yunnan Province and Sichuan Province in the east and southeast, and Myanmar, India, Bhutan, Nepal and Kashmir in the south and west, with a length of about 3,842 kilometers.
Baidu Encyclopedia-Tibet