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.
Zheng'an County is the lower jurisdiction county of Zunyi City, Guizhou Province, which is located in the northeast of Zunyi City. It is the frontier of Chongqing and the important economic and cultural intersection area of southern Chongqing and northern Guizhou. It is known as the "gateway to northern Guizhou". Zheng'an County is located in the north of Guizhou Province, bordering Nanchuan District of Chongqing to the north, Daozhen County and Wuchuan County in the northeast, Fenggang County and Meitan County in the southeast, Suiyang County in the south and Tongzi County in the northwest. In 2017, Zheng'an County achieved a regional GDP of 10.06382 billion yuan, of which the added value of the primary industry was 2.86398 billion yuan, the secondary industry was 2.221 billion yuan, and the tertiary industry was 4.97884 billion yuan. The proportion of the three industrial structures in the gross domestic product is 28.4% in the primary industry, 22.1% in the secondary industry and 22.1% in the tertiary industry.