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.
Chengcheng County, which belongs to Weinan City, Shaanxi Province, is located in the eastern part of Guanzhong Basin, Shaanxi Province. It is between 109o 46km east longitude-110o 05km east latitude and 34o 550045 "- 35o 2705km north latitude, with a total area of 1121 square km. Chengcheng County has a long history. It was built from the Northern Wei Dynasty, and the county name has been in use for 1540 years. The terrain is high in the north and low in the south, and the county is divided into "three beams and one original" by four rivers. It is a warm temperate semi-humid monsoon zone with an average annual temperature of 12 ℃, precipitation of 680mm, frost-free period of 204days and a large temperature difference between day and night. As of 2018, Chengcheng County has jurisdiction over 1 street and 9 towns. By the end of 2017, Chengcheng County had a resident population of 393224, with a gross domestic product (GDP) of 8.569 billion yuan.