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.
Kaiyang County, located in Luoding City, Guangdong Province, is an ancient historical county in Guangdong. it has an extremely important position in administration and commerce. Kaiyang County has been the local administrative and trade center since 214 BC. It was not until 1304 that the county was moved from Kaiyang Township to the present urban area of Luoding. Kaiyang County, which has always played a very important role in cultural construction, took the lead in the construction of Confucian schools (also known as Confucian temples and academic palaces) in the Republic of China. Kaiyang County took the lead in building Confucian schools at that time. There were maintenance in Song and Yuan dynasties, and it was also used in school teaching in Qing Dynasty. To this day, you can still see the ruins of the School Palace. In the early years, both the government and the people of Luoding protected Kaiyang culture.