"The Bubishi" (Records of Military Preparation), a historical book written in the Chinese Ming Dynasty named Hakatanotsu, Anotsu, and of Bonotsu in Satsuma Province as Japan's Sanshin.
また、中国明代の歴史書『武備誌』（軍備誌）には博多津、安濃津、薩摩国坊津を日本三津と称している。