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.
Shuangtaizi District, which belongs to Panjin City, Liaoning Province, is located in the south of Songliao Plain, the lower reaches of Liao River and the coast of Bohai Sea. The center is located in longitude 121 °2 "122 °30" east and latitude 40 °39 "40 °37 'north. Shuangtaizi District has a total area of 121square kilometers and has jurisdiction over 8 streets and 2 towns with a total population of 220000 (2015). By 2014, the GDP of Shuangtaizi District had reached 15.03 billion yuan. Shuangtaizi District has Liaohe Forest of Steles, Lakeside Park and other scenic spots. Chen Baoku, current secretary of the Shuangtaizi District CPC Committee, Zhang Guojun, chairman of the standing Committee of the District people's Congress, and Li Jifeng, the district mayor. On November 14, 2019, Shuangtaizi District was rated as the third batch of national ecological civilization construction demonstration areas by the Ministry of Ecological Environment.