221 BC (unification under the Qin or Ch'in Dynasty); 1 January 1912 (Qing or Ch'ing Dynasty replaced by the Republic of China); 1 October 1949 (People's Republic of China established)
Religions
Christian 80% to 90% (Lutheran 50% at least), indigenous beliefs 10% to 20%
Daoist (Taoist), Buddhist, Christian 3%-4%, Muslim 1%-2% note: officially atheist (2002 est.)
Languages
English 7% (official), Afrikaans common language of most of the population and about 60% of the white population, German 32%, indigenous languages 1% (includes Oshivambo, Herero, Nama)
Standard Chinese or Mandarin (Putonghua, based on the Beijing dialect), Yue (Cantonese), Wu (Shanghainese), Minbei (Fuzhou), Minnan (Hokkien-Taiwanese), Xiang, Gan, Hakka dialects, minority languages (see Ethnic groups entry)