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.
Langfang, a prefecture-level city of Hebei Province, is located in the east-central part of Hebei Province, facing the capital Beijing in the north, bordering Tianjin in the east, Cangzhou in the south and Baoding in the west. Most of Langfang is located in the depression area due to the influence of geological structure; it is located in the middle latitudes and belongs to the warm temperate continental monsoon climate; it is located in the core of Beijing-Tianjin-Hebei urban agglomeration, around the hinterland of Bohai Sea. Langfang has jurisdiction over two districts, two county-level cities and six counties, with a total area of 6429 square kilometers and an urban area of 54 square kilometers. The registered population is 4.795 million in 2018. Langfang City is located in the central and eastern part of the North China Plain and the central part of Hebei Province. Langfang territory starts from the hilly area at the southern foot of Yanshan in the north and reaches the Heilonggang basin in the south. Langfang City is located in the middle latitudes, is a warm temperate continental monsoon climate, four distinct seasons. Langfang City is located in the middle and lower reaches of the Haihe River Basin.