- Balhaego
Balhaego(발해고, 渤海考) is a
Balhae 's history book written byYu Deuk-gong who was a practical scientist (실학) atJoseon dynasty . It describes about the king of Balhae, the vassals of Balhae, geography and geology, government system, foods and clothing, etc. It is an early book argued that Balhae should be included as part of Korean history.External links
* [http://khaan.net/history/balhaego/balhaegomenu.htm 발해고] The original text of the Balhaego.
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