''Xin'an Xianzhi'' (; literally ''Gazetteers of Xin'an County''), also known as San On County Gazetteer or San On Gazetteer in English, were the chorography of the historical Xin'an County (San-On or Sun-On County; literally ''New Peace County''; known at times as the Po-On County (spelt Bao'an in pinyin)) of

Guangdong ) means "wide" or "vast", and has been associated with the region since the creation of Guang Prefecture in AD 226. The name "''Guang''" ultimately came from Guangxin ( zh, labels=no, first=t, t= , s=广信), an outpost established in Han dynasty ...

(then Kwangtung) in southern China. Due to frequent geopolitical changes, the county ceased to exist and became the history and territories of

Hong Kong Hong Kong)., Legally Hong Kong, China in international treaties and organizations. is a special administrative region of China. With 7.5 million residents in a territory, Hong Kong is the fourth most densely populated region in the wor ...

and

Shenzhen Shenzhen is a prefecture-level city in the province of Guangdong, China. A Special economic zones of China, special economic zone, it is located on the east bank of the Pearl River (China), Pearl River estuary on the central coast of Guangdong ...

, metropolises in South China. Versions of the gazetteer are very important records to study in the area. Six editions were published, the first one in 1587 and the last one in 1819. The last editions were Qing's Kangxi Years (K'ang-hsi; 1661–1722) edition and

Jiaqing The Jiaqing Emperor (13 November 1760 – 2 September 1820), also known by his temple name Emperor Renzong of Qing, personal name Yongyan, was the sixth Emperor of China, emperor of the Qing dynasty and the fifth Qing emperor to rule over Chin ...

Years (Chia-ch'ing; 1796–1820) edition.

See also

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