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.
Nanzheng District, which belongs to Hanzhong City, Shaanxi Province, gets its name because of Zheng people's running south. It is located in the southwest border of Shaanxi Province, southwest of Hanzhong Basin, facing Hanjiang River in the north and Yiba Mountain in the south. The area is adjacent to Chenggu County and Xixiang County in Shaanxi Province in the east, Tongjiang County, Nanjiang County and Wangcang County in Sichuan Province in the south, Ningqiang County and Mian County in Shaanxi Province in the west, and Hantai District in Shaanxi Province across the river in the north, covering an area of 2809.0363 square kilometers. The climate in the territory belongs to the north subtropical zone and the warm temperate zone, especially in the north subtropics. Nanzheng is not only an important part of Hanzhong "double hundred" urban planning, but also an economically developed area of Hanzhong City, which has a world-class Tiankeng group. Nanzheng District is also a large area of tourism resources in Shaanxi Province, with scenic spots such as Nanhu Lake, Hongsi Lake,