Oklahoma City (/oʊkləˌhoʊmə -/ (listen)), officially the City of Oklahoma City, and often shortened to OKC, is the capital and largest city of the U.S. state of Oklahoma. The county seat of Oklahoma County, it ranks 20th among United States cities in population, and is the 8th largest city in the Southern United States. The population grew following the 2010 census and reached 687,725 in the 2020 census. The Oklahoma City metropolitan area had a population of 1,396,445, and the Oklahoma City–Shawnee Combined Statistical Area had a population of 1,469,124, making it Oklahoma's largest municipality and metropolitan area by population.
Oklahoma City's city limits extend somewhat into Canadian, Cleveland, and Pottawatomie counties, though much of those areas outside the core Oklahoma County area are suburban tracts or protected rural zones (watershed). The city is the eighth-largest in the United States by area including consolidated city-counties; it is the second-largest, after Houston, not including consolidated cities. The city is also the second largest by area among state capital cities in the United States, after Juneau, Alaska.
Haining, a county-level city under the jurisdiction of Zhejiang Province, hosted by Jiaxing City, is located in the south wing of China's Yangtze River Delta, northern Zhejiang Province, Haiyan County in the east, Qiantang River in the south, across the river from Shangyu District in Shaoxing and Xiaoshan District in Hangzhou. Xiasha, Yuhang District and Jianggan District of Hangzhou, Tongxiang City and Xiuzhou District of Jiaxing in the north. It is 100 kilometers from Shanghai to the east, Hangzhou to the west and Qiantang River to the south. In 1986, the county was removed and the city was established. The name Haining was first seen in the second year of Yongding, Emperor Chen Wudi of the Southern Dynasty (558), implying the meaning of "serenity of the sea flood". Its scenic spot "Qianjiang surge" has been popular since the Tang and Song dynasties and is well-known at home and abroad. "on August 18, there is nothing spectacular in the world". It still attracts guests from all directions and sees the wonder of the tide. Haining City has a long history, a large number of celebrities from all walks of life, is Li Shanlan, Wang Guowei,.