Chinese or the Sinitic language(s) (汉语／漢語 Hànyǔ; 华语／華語 Huáyǔ; 中文 Zhōngwén) is a language family consisting of languages which are mostly mutually unintelligible to varying degrees. Originally the indigenous languages spoken by the Han Chinese in China, it forms one of the two branches of Sino-Tibetan family of languages. About one-fifth of the world’s population, or over one billion people, speak some form of Chinese as their native language. Internal divisions of Chinese are usually perceived by their native speakers as dialects of a single Chinese language, rather than separate languages, although this identification is considered inappropriate by some linguists and Sinologists. Spoken Chinese is distinguished by its high level of internal diversity, although all spoken varieties of Chinese are tonal and analytic. There are between seven and thirteen main regional groups of Chinese (depending on classification scheme), of which the most spoken, by far, is Mandarin (about 850 million...