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.
Longmatan District, which belongs to Luzhou City, Sichuan Province, is located in the south of Sichuan Basin, at the confluence of the Yangtze River and Tuojiang River. It intersects with Lu County in the west and north, Jiangyang District in the south and Lu County and Jiangyang District in the east. Longmatan District is the trade, logistics, economic and passenger transport center of Luzhou. It is a developed economic and trade area of Luzhou and one of the three main cities of Luzhou. At the same time, the Lingang area in southern Sichuan, a free trade pilot zone in China (Sichuan), is located in Longmatan District. Longmatan District covers an area of 332.64 square kilometers and has jurisdiction over 7 streets and 5 towns. In 2013, Longmatan District had a total registered population of 357000 and a resident population of more than 500,000. GDP reached 16.188 billion yuan, an increase of 13.1% over 2012 at comparable prices. On February 2, 2019, it was rated as the national base at the county level by the State Administration of traditional Chinese Medicine.