Wichita (/ˈwɪtʃɪtɔː/ WITCH-ih-taw) is the largest city in the U.S. state of Kansas and the county seat of Sedgwick County. As of the 2020 census, the population of the city was 397,532. The Wichita metro area had a population of 647,610 in 2020. It is located in south-central Kansas on the Arkansas River.
Wichita began as a trading post on the Chisholm Trail in the 1860s and was incorporated as a city in 1870. It became a destination for cattle drives traveling north from Texas to Kansas railroads, earning it the nickname "Cowtown". Wyatt Earp served as a police officer in Wichita for around one year before going to Dodge City.
Changtu County, the northernmost county in Liaoning Province, is the pilot unit of the county system of expanding power in Liaoning Province. it is a well-known agricultural county in the country, the largest peanut distribution center in Northeast China, the largest grain production base and livestock and poultry production and processing base in China. Changtu County has convenient transportation, there are Harbin-Dalian Railway, Pingqi Railway and Harbin-Dalian High-speed Railway. National Highway 102, National Highway 303 and Shen-Harbin Expressway pass through the territory. Changtu County has a strong industrial foundation. A modern industrial pattern based on the processing of building materials, chemical industry, machinery, textiles, agricultural and sideline products is taking shape. In September 2019, it was selected as a pilot county for the construction of medical community in a compact county.