Koreans in China - Wikipedia
https://en.wikipedia.org/wiki/Koreans_in_ChinaDue to the geographic proximity between China and the Korean Peninsula, population migration of some kind had often occurred throughout history. However, most early ethnic Koreans in China had been assimilated by the Han Chinese, Manchus and Mongols. Thus, the overwhelming majority of today's ethnic Korean population in China are descendants of relatively recent Korean emigrants since late Qing dynasty.
Korean language - Wikipedia
https://en.wikipedia.org/wiki/Korean_languageIn North Korea and China, the language is most often called Joseon-mal, or more formally, Joseon-o. This is taken from the North Korean name for Korea (Joseon), a name retained from the Joseon dynasty until the proclamation of the Korean Empire, which in turn was annexed by the Empire of Japan .
Languages of China - Wikipedia
https://en.wikipedia.org/wiki/Languages_of_ChinaOverview of the languages spoken in China. Languages of China. Historical distribution map of linguistic groups in Greater China. Official. Standard Mandarin, Cantonese ( Hong Kong and Macau ), Portuguese ( Macau ), English ( Hong Kong ), Mongolian ( Inner Mongolia, Haixi in Qinghai, Bayingolin and Bortala in Xinjiang), Korean ( Yanbian in ...