San Diego (/ˌsæn diˈeɪɡoʊ/ SAN dee-AY-goh, Spanish: [san ˈdjeɣo]; Spanish for 'Saint Didacus') is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States and the seat of San Diego County, the fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the second largest city in the state of California, after Los Angeles.
Xiangcheng County, under the jurisdiction of Xuchang City, Henan Province, is located in the hinterland of the Central Plains, the head of the Funiu Mountains in the west and the eastern edge of the Huang-Huai Plain in the east. The terrain is high in the west and low in the east, with a distinct climate of four seasons; the total area is 920sq km, with jurisdiction over 10 towns and 6 townships; the total population is 881700 in 2018. Xiangcheng County in the Spring and Autumn period said "Yi", later because of the refuge of King Zhou Xiangcheng, hence the name Xiangcheng. Xiangcheng County has been established after Qin Tong and six Kingdoms for more than 2200 years. There are many cultural relics and monuments in the territory, including Ziyun Academy, one of the eight major academies in the country in the Ming Dynasty, Qianming Temple, the first Zen Forest in Zhongzhou, which was built during the Tang Dynasty (618-626), and the Taoist shrine, Bainingang Wuyue Temple. The ancient city walls and urns left in the Spring and Autumn period, as well as cultural relics protection units, cultural relics and monuments, cultural relics protection sites, such as Confucian temples and Kuibi, 10