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.
Shaanxi, referred to as "Shaanxi" or "Qin", the provincial administrative region of the people's Republic of China, the provincial capital Xi'an, is located in the hinterland of China, the middle reaches of the Yellow River, Shanxi and Henan to the east, Ningxia and Gansu to the west, Sichuan, Chongqing and Hubei to the south and Inner Mongolia to the north, between longitude 105 °29 and latitude 31 °42, with a total area of 205600 square kilometers. China's longitude and latitude reference point, geodetic origin, and Beijing time National time Service Center are located in the province. The topography of Shaanxi Province is high in the north and low in the middle, and is composed of plateaus, mountains, plains and basins, among which the Loess Plateau accounts for 40% of the province's land area, straddling the two major river systems of the Yellow River and the Yangtze River, and across three climatic belts. The Great Wall in northern Shaanxi belongs to the mid-temperate monsoon climate, Guanzhong and