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.
Xianan District, which belongs to Xianning City, Hubei Province, is located in the southeast of Hubei Province, bordering Yangxin in the east, Chongyang in the south, Chibi in the west, Jiangxia in the north, Tongshan in the southeast, and Jiayu in the northwest. The total area is 1503.8 square kilometers. Xianan District is the seat of the municipal party committee and municipal government. It was removed from the county in 1984 and changed to Xianan District in March 1999. It was one of the first batch of counties, cities and districts approved by the State Council in 1986. Li Yong, a calligrapher with the reputation of "six marvels in Hanlin and a fairy hand in the book" in the Tang Dynasty, and Feng Jing in the Song Dynasty left an everlasting story about "marrying two prime ministers and three world leaders"; during the period of the new democratic revolution and socialist construction, a number of early revolutionaries such as Qian Yishi, he Gongwei and Qian Ying emerged from here. It is an important part of Wuhan city circle. In 2018, there are three under the jurisdiction of Xianan District.