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.
Quanjiao County, which belongs to Chuzhou City, Anhui Province, is located in the east of Anhui Province, on the south side of the Jianghuai Watershed, between Hefei, the capital of Anhui Province and Nanjing, the capital of Jiangsu Province. Quanjiao County is located in the Jianghuai hilly area, with low mountains and hills in the northwest. The east and south are corrugated plains alternating with hills and hills, with sporadic distribution of residual hills and a subtropical monsoon climate with a total area of 1568 square kilometers. Quanjiao County was first built in the Western Han Dynasty, the name of the county evolved from the ancient country. Legend has it that the ancient Gao Yang established Gujiao Kingdom in Jiaolingshan (also known as Busan, in today's city). In the Spring and Autumn period, it was Chu Jiaoyi, and then Quanshi lived. Han Dynasty set up governance in Gujiaoyi County, hence the name Quanjiao County. Quanjiao is the cultural hometown of Chongwen and heavy education, which has given birth to many local scholars, the most famous of which is Wu Jingzi, the author of the Outer History of Scholars, which created a precedent of Chinese satirical novels. Quanjiao County