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.
Minquan County, Shangqiu City, Henan Province, is located in the east of Henan Province, the south of the North China Plain, the west of the East Henan Plain, Liangyuan Park and Ningling County in the east, Sui County in the south, Lankao County and Qi County in Kaifeng City in the southwest, and Cao County in Heze City in the northeast. The old route of the Yellow River passes through the county and forms large reservoirs such as Qiushui Lake. In 2010, it was identified as the west wing of Shangqiu's "one nuclear, two wings" development strategy. Minquan County has a long history. During the Xia and Shang dynasties, there were cities, named Dai Yi. During the Spring and Autumn and warring States period, it was the territory of the State of Dai and the State of Song. Since the Qin Dynasty, the county has successively set up Waihuang, Chengan County, Kaocheng and other counties, which has been the seat of the old Kaocheng County until 1783. At the end of the Qing Dynasty, the region belonged to Kaocheng, Suizhou and Qi County. 1928