Chūzan Seifu
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Chūzan Seifu (中山世譜; lit. Genealogy book of Chūzan) was an official history of the Ryūkyū Kingdom compiled between 1697 and 1701 by a group of scholar-officials led by Sai Taku. It was a continuation of the Chūzan Seikan. It is composed of 19 volumes, one of which is devoted to correspondence between the kingdom and the Satsuma Domain. It also describes the founding of the Chinese community in Okinawa after the arrival of "thirty-six families" of "people from Min" after permission was granted by Emperor Hongwu.
Later, it was rewritten into Classical Chinese by Sai Taku's famous son Sai On in 1724, and expanded each year until 1876.