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)
15 September 1821 (from Spain)
Religions
Daoist (Taoist), Buddhist, Christian 3%-4%, Muslim 1%-2% note: officially atheist (2002 est.)
Roman Catholic 57.1%, Protestant 21.2%, Jehovah's Witnesses 1.9%, Mormon 0.7%, other religions 2.3%, none 16.8% (2003 est.)
Languages
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)
Spanish, Nahua (among some Amerindians)
Exports
electrical and other machinery, including data processing equipment, apparel, textile, iron and steel, optical and medical equipment