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.
Maanshan, referred to as "Ma", is a prefecture-level city in Anhui Province, located in the eastern part of Anhui Province and the confluence area of Jiangsu and Anhui Province. it is a member city of Hefei Metropolitan area, Nanjing Metropolitan area, member cities of Yangtze River Delta Urban agglomeration, cities along Yangtze River Economic Belt and Wanjiang City Belt to undertake industrial transfer demonstration area; it has jurisdiction over 3 districts and 3 counties with a total area of 4049 square kilometers. In 2018, the resident population was 2.337 million. Ma'anshan, which straddles the Yangtze River and borders Nanjing, has been known as "Jinling barrier and Jiankang lock key" since ancient times. As early as the six dynasties, many famous princes and virtuous scholars lingered in Maanshan, leaving many monuments and cultural relics. It has successively won the national civilized cities, national public cultural service standardization construction pilot cities, national science and technology pilot cities, southern Anhui international tourism culture demonstration zone, and the first batch of countries.