The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With 8,472 square miles (21,940 km2) and a population of more than 2.2 million people, it is the second-largest metropolitan area centered in Missouri (after Greater St. Louis) and is the largest metropolitan area in Kansas, though Wichita is the largest metropolitan area centered in Kansas. Alongside Kansas City, Missouri, these are the suburbs with populations above 100,000: Overland Park, Kansas; Kansas City, Kansas; Olathe, Kansas; Independence, Missouri; and Lee's Summit, Missouri.
Wugong County, which belongs to Xianyang City, Shaanxi Province, is located in the hinterland of Guanzhong Plain, bordering Xingping City in the east, Weishui River in the south and Zhouzhi County in Xi'an City in the south, Yangling Agricultural High-tech Industry demonstration Zone in the west, Fufeng County in Baoji City, and Qian County in the north. It is 87 kilometers away from Xi'an and 50 kilometers from Xianyang City, with a county area of 397.8 square kilometers. Wugong County, located in the hinterland of Guanzhong Plain, is the birthplace of Chinese agricultural civilization. Guoyu Jin Yu said: "in the past, Shaodian married in Youyu, gave birth to Huangdi and Yan Emperor." Yan Emperor became with Jiang Shui, and Yellow Emperor with Ji Shui. Success is different from virtue, so the Yellow Emperor is Ji and Yan Di is Jiang. " Jishui is the lacquer water in today's martial arts. Houji established the first state in Chinese history in Zhengjiapo, Wugong town, and became the ancestor of the Zhou nationality. Ji Fa, King of Zhou Wu, destroyed Yin and Shang Dynasty and built the Western Zhou Dynasty.