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.
Yunan District, which belongs to Yunfu City, Guangdong Province, is located in the west of Guangdong Province, the south bank of the middle reaches of the Xijiang River, Yuncheng District of Yunfu City in the east, Xinxing County and Yangchun City in the south, Luoding City and Yunan County in the west, Xijiang River and Deqing in the north, with a total area of 1184.73 square kilometers, with 7 towns under its jurisdiction and the District people's Government stationed in Liudu Town. By the end of 2017, Yun'an District had a resident population of 286300 and a total registered population of 341600. In January 1996, Yunan County was established; in September 2014, Yunan County was abolished and Yunan District of Yunfu City was established with the consent of the State Council. The topography of Yun'an District is high in the east, south and west, low in the north, dominated by hills and low mountains; located in the south of the Tropic of Cancer, the latitude is low and close to the ocean, it belongs to the subtropical humid monsoon climate with abundant rainfall.