History: Old China

Most languages in China belong to the Sino-Tibetan language family, spoken by 29 ethnicities. There are also several major linguistic groups within the Chinese language itself. The most spoken varieties are Mandarin (spoken by over 70% of the population), Wu, Yue (Cantonese), Min, Xiang, Gan, and Hakka. Non-Sinitic languages spoken widely by ethnic minorities include Zhuang (Thai), Mongolian, Tibetan, Uyghur (Turkic), Hmong and Korean.
Classical Chinese was the written standard in China for thousands of years, and allowed for written communication between speakers of various unintelligible languages and dialects in China. Written vernacular Chinese, or baihua, is the written standard based on the Mandarin dialect and first popularized in Ming dynasty novels. It was adopted with significant modifications during the early 20th century as the national standard. Classical Chinese is still part of the high school curriculum and is thus intelligible to some degree to many Chinese.
• Religion
The "official" orthodox faith system held by most dynasties of China since at least the Shang Dynasty (1766 BC) until the overthrow of the last dynasty (1911 AD) centered on the worship of Shangdi ("Supreme God") or "Heaven" as an omnipotent force. This faith system pre-dated the development of Confucianism and Taoism and the introduction of Buddhism, Islam and Christianity.