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.
Tianjiaan District, which belongs to Huainan City, Anhui Province, is located in the east of Huainan City, bordering Datong District in the east, Xiejiaji District in the south, Bagongshan District in the west and Panji District in the north. With a total area of more than 251 square kilometers, it is the central city of Huainan City. As of December 2014, Tianjiaan District has jurisdiction over 3 towns, 2 townships, 9 streets, 79 communities and 40 villages. At the end of 2012, the total population of Tianjiaan District was 539000. In 2012, Tianjiaan District achieved a GDP of 19.493 billion yuan, an increase of 12.1% (comparable price) over 2011. The famous scenic spots in Tianjiaan District are the National AAAA Scenic spot-Longhu Park.