San Jose,[A] officially San José (/ˌsæn hoʊˈzeɪ, -ˈseɪ/; Spanish: [saŋ xoˈse]; Spanish for 'Saint Joseph'),[B] is a major city in the U.S. state of California that is the cultural, financial, and political center of Silicon Valley and largest city in Northern California by both population and area. With a 2020 population of 1,013,240, it is the most populous city in both the Bay Area and the San Jose-San Francisco-Oakland Combined Statistical Area, which contain 7.7 million and 9.7 million people respectively, the third-most populous city in California (after Los Angeles and San Diego and ahead of San Francisco), and the tenth-most populous in the United States. Located in the center of the Santa Clara Valley on the southern shore of San Francisco Bay, San Jose covers an area of 179.97 sq mi (466.1 km2). San Jose is the county seat of Santa Clara County and the main component of the San Jose–Sunnyvale–Santa Clara Metropolitan Statistical Area, with an estimated population of around two million residents in 2018.
Dangtu County, which belongs to Maanshan City, Anhui Province, is located in the east of Anhui Province and the east bank of the lower reaches of the Yangtze River. It is bordered by Bowang District and Shijiu Lake to the east, Lishui District and Gaochun District in Nanjing City, Jiangsu Province to the east, the Yangtze River to the west, across the river to Hexian County, Wuhu County and Xuancheng City to the south, and Yushan District to the north. Dangtu County has a history of more than 2200 years. Danyang County was established in the Qin Dynasty, and it was named Dangtu in the ninth year of Sui Kaihuang (589). In history, the county seat was the seat of Taiping Prefecture in Song Dynasty, Taiping Mansion in Ming and Qing dynasties, Yangtze River navigator in Qing Dynasty and Anhui Science and Government Office. Since the Qin Dynasty, it has attracted more than 600 poets to leave more than 1000 popular poems here. Xie Kui, a great poet of the Southern Dynasty, called it "the capital of mountains and rivers". The poem fairy Li Bai visited Dangtu seven times and wrote 56 unique poems such as "Wangtianmen Mountain".