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.
Liangzhou District, known as Gudu and Xiutu in ancient times, is located in the longitude of 101 °59 and the latitude of 37 °23 and 38 °12, respectively. It is located in the northwest of Gansu Province, the eastern end of Hexi Corridor, the northern foot of Qilian Mountain and the middle of Wuwei City, with an average elevation of 1632 meters. Liangzhou District belongs to Wuwei City, Gansu Province, bordering Inner Mongolia Autonomous region to the east, Sunan Yugu Autonomous County to the west, Tianzhu Tibetan Autonomous County and Gulang County to the south, and Yongchang County and Minqin County to the north. As of 2014, Liangzhou District has a total area of 5081 square kilometers, living in Han, Hui, Tibetan, Manchu and other 25 ethnic groups, with a total population of 1.0225 million (2012). In 2018, the district has jurisdiction over 37 towns, 2 headquarters and 8 urban subdistrict offices. Liangzhou District has a temperate continental arid climate, 20