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.
Yinchuan, referred to as "Yin", is the capital of Ningxia Hui Autonomous region, a national historical and cultural city, and one of the important central cities in Northwest China. The military, political, economic, cultural, scientific research, transportation and financial center of the autonomous region is a comprehensive industrial city focusing on the development of light and textile industry and coordinated development of machinery, chemical industry and building materials industry. Located in the middle of Ningxia Plain, located on the western edge of Ordos in the east and Helan Mountain in the west, the Yellow River runs through the city. It is a famous historical and cultural city in China, a central city in the adjacent area of Ningxia, Inner Mongolia, Shaanxi and Gansu, and a node city of the Silk Road. it is a key economic zone for the in-depth implementation of the western development strategy. Yinchuan is an ancient city with a long history. Human beings thrived at the Shuidonggou site as early as 30,000 years ago. Yinchuan, the capital of the Xixia Dynasty in history, is a famous historical and cultural city of the country.