Administrative divisions of China By its political level, when a "city" is referred to, it can be a: By its actual area and population, it can be: When used in the statistical data, the word "city" may have three different meanings: It is important to specify the definition of "city" when referring to statistical data of Chinese cities, otherwise, confusion may arise. For example, Shanghai is the largest city in China by population in the urban area but is smaller than Chongqing by the population within the administration area. Before the establishment of the Qin Dynasty, China was ruled by a network of kings,
Koreans in China in 2008 and the depreciation of the Korean won, large numbers of those returned to South Korea. A "Bloomberg News" article initially stated the proportion as 20% (roughly 140,000 people). Between 2008 and 2009, South Korean government figures show that the number of Koreans in China dropped by 433,000. The Sixth National Population Census of the People's Republic of China reported 120,750 South Koreans in Mainland China, the largest single foreign group. Koreans in China The population of Koreans in China include millions of descendants of Korean immigrants with citizenship of the People's Republic of China, as well as smaller