China In World Languages
Wikipedia Reference Information
The different usages and names of China in world languages are generally consistent with how knowledge of China's existence first reached each culture. Research is too inconclusive to make any definite assertation of the origins of the names of China in non-Chinese records.
In modern China, the term Zhongguo is used to refer to all of China, including China proper (including Taiwan), Manchuria, Inner Mongolia, Xinjiang, Tibet. By contrast, Han refers to the Han Chinese ethnic group, who are mostly concentrated in China proper, Manchuria, and only parts of the other three regions. There is no general Chinese term for just China proper, or just the territories inhabited by Han Chinese.
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