Tianjin is the largest coastal city in northern China. In terms of urban population, Tianjin is the fourth largest in China, after Shanghai, Beijing, and Guangzhou. In terms of administrative area population, Tianjin ranks fifth in Mainland China. The walled city of Tianjin was built in 1404. As a treaty port since 1860, Tianjin has been a major seaport and gateway to Beijing. During the Boxer Rebellion the city was the seat of the Tianjin Provisional Government. Under the Qing dynasty and the Republic of China, Tianjin became one of the largest cities in the region. At that time, numerous European-style
Koreans in China 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 groups of South and North Korean expatriates, with a total of roughly 2.3 million people , making it the largest ethnic Korean population living outside the Korean Peninsula. Chaoxianzu (), Joseonjok or Chosŏnjok () form one of the 56 ethnicities officially recognized by the Chinese government. Their total population was estimated at 1,923,842 and 1,830,929 according to the 2010 Chinese census. High levels of emigration to South Korea, which has conversely reported