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.
Yi'an District, which belongs to Tongling City, Anhui Province, is located in the central and southern part of Anhui Province, on the south bank of the middle and lower reaches of the Yangtze River, close to the developed Yangtze River Delta, between longitude 117 °42 "- 118 °10" 6 "east longitude and latitude 30 °45 12"-31 °07 56 "north. Fanchang and Nanling to the east, Qingyang and Guichi to the south, and Zongyang and Wuwei to the northwest. It is only 152 kilometers away from the provincial capital Hefei. In 2017, Yi'an District has jurisdiction over 6 towns and 2 townships, with a total area of 845 square kilometers. In 2016, there were 290932 registered residents (255000 permanent residents). In 2016, the gross domestic product (GDP) of Yi'an District reached 13.593 billion yuan. Yi'an, who first appeared in the first year of Tang Wende (AD 888), is the development of Chinese bronze civilization.