San Antonio (/ˌsæn ænˈtoʊnioʊ/ SAN an-TOH-nee-oh; Spanish for "Saint Anthony"), officially the City of San Antonio, is a city in Texas, United States. The city is the seventh-most populous in the United States, the second-largest in the Southern United States, and the second-most populous in Texas. It is the 12th most-populous city in North America, with 1,434,625 residents in 2020.
Founded as a Spanish mission and colonial outpost in 1718, the city in 1731 became the first chartered civil settlement in what is now present-day Texas. The area was then part of the Spanish Empire. From 1821 to 1836, it was part of the Mexican Republic. It is the oldest municipality in Texas, having celebrated its 300th anniversary on May 1, 2018.
Bayi District, which belongs to Linzhi City, Tibet Autonomous region, is located in the southeast of China's Tibet and at the southeast foot of the Nianqing Tanggula Mountains. Yarlung Zangbo meets the Niyang River here. It is the lowest elevation area of the Qinghai-Tibet Plateau and is known as "Jiangnan of Tibet". Bayi District covers an area of 10238 square kilometers, with a cultivated land area of 38000 mu, a grassland area of 565000 mu and a forest area of 5.02 million mu. The average elevation of Bayi District is 3000 meters above sea level, with a relative height difference of 2200-4700 meters. It is located at the peak of Garabaili at the junction of Bayi and Milin, with an elevation of 7294 meters. Plants grow from the subtropical zone to the cold zone, known as the "green treasure house". In 2014, the GDP of Bayi District (formerly Linzhi County) reached 4.555 billion yuan, and the financial revenue broke through the 100 million yuan mark for the first time, reaching 1.2 million yuan.