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
Roman Catholic 81%, Seventh Day Adventist 1.4%, other Christian 0.7%, other 0.6%, unspecified or none 16.3% (2003 est.)
Daoist (Taoist), Buddhist, Christian 3%-4%, Muslim 1%-2% note: officially atheist (2002 est.)
Languages
Spanish (official), Quechua (official), Aymara, and a large number of minor Amazonian 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)
