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.
Changge City, which belongs to Xuchang City, Henan Province, is a county-level city under Xuchang's jurisdiction; it is adjacent to Xuchang City-Jian'an District to the south, Zhengzhou Airport area to the north and Xinzheng International Airport to the north, between latitude 34 °20km north and longitude 113o 34km east. It has a total area of 650square kilometers and a resident population of 679300 (2016). It has jurisdiction over 4 streets and 12 towns. Changge City has two industrial agglomeration zones (Changge Economic and technological Development Zone and Changge Dazhou Industrial agglomeration Zone). By 2015, Changge City has built 10 national and provincial enterprise technology centers and 2 postdoctoral workstations. GE, head of China's top 100 industrial counties, ranked 54th in 2017. The main business income of industry in 2016 is 215.8 billion, the first in Henan county.