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.
Guanghan, a county-level city under the jurisdiction of Sichuan Province, is hosted by Deyang City. Known as Hanzhou in ancient times, also known as Yancheng, it is the first pilot county (city) in Sichuan to expand its power. It is 18 kilometers north of Jingyang District of Deyang City and 24 kilometers south of Chengdu City. It is located at the western foot of Longquan Mountains in the northeast of Chengdu Plain. Guanghan belongs to the humid climate zone in the middle subtropical zone of Sichuan Basin; it has jurisdiction over 9 townships and 3 streets with a total area of 538 square kilometers and has a registered population of 604000 in 2017. Guanghan is located in the core area of the hinterland of "the land of abundance". Since ancient times, it has been said that "the gate of Yizhou, the main thoroughfare of Shu province and the way to Beijing" is the north gate of Chengdu. Sanxingdui site in Guanghan is an ancient Shu cultural site about 5000 to 3000 years ago, which is regarded as one of the greatest archaeological discoveries of mankind in the 20th century, indicating the Yangtze River valley and the Yellow River.