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.
Xuancheng, known as Wanling and Xuanzhou in ancient times, is a prefecture-level city in Anhui Province, located in the southeast of Anhui Province, bordered by Hangzhou and Huzhou in Zhejiang Province to the east, Huangshan in the south, Chizhou and Wuhu in the west and northwest, Maanshan in the province and Nanjing, Changzhou and Wuxi in Jiangsu Province to the north and northeast. It is located on the western waist line of the Shanghai-Nanjing-Hangzhou Triangle. It is a member city of Nanjing metropolitan area and the central city of G60 Kechuang Corridor. The city of Wanjiang takes the first wing of the demonstration area to undertake industrial transfer, which is the forward position for the central region to undertake the industrial and capital transfer in the eastern region, the central city of Anhui, Jiangsu and Zhejiang, and an important channel for the southeast coast to communicate with the interior. Xuancheng is located in the south of the Yangtze River, which has been said to be "the combination of the south and the north" since ancient times. Since the establishment of the county in the Western Han Dynasty, it has a history of more than 2000 years. Xuancheng has been since the Western Han Dynasty.