倭 (without "people" or "country" suffixation) under the Dongyi "Eastern Barbarians" section, and begins with the Taibo legend. The Wa say of themselves that they are posterity of Tàibó. According to custom, the people are all tattooed. Their territory is over 12,000 li from Daifang. It is located approximately east of Kuaiji [on Hangzhou Bay], though at an extremely great distance. [] Later texts repeat this myth of Japanese descent from Taibo. The 648 CE Jin Shu 晉書 "Book of Jin" about the Jin dynasty (266–420 CE) uses a different "call" verb, wèi 謂 "say; call; name" instead of yún 云 "say; speak; call", "They call themselves the posterity of Tàibó [自謂太伯之後]". The 1084 CE Chinese universal history Zizhi Tongjian 資治通鑑 speculates, "The present-day Japan is also said to be posterity of Tàibó of Wu; perhaps when Wu was destroyed, [a member of] a collateral branch of the royal family disappeared at sea and became Wo." []. Sui Shu The 636 CE Sui Shu 隋書 "Book of Sui" records the history of the Sui dynasty (581–618) when China was reunified. Wōguó/Wakoku is entered under "Eastern Barbarians", and said to be located off of Baekje and Silla (see Hogong), two of the Three Kingdoms of Korea. Wa-kuo is situated in the middle of the great ocean southeast of Paekche and Silla, three thousand li away by water and land. The people dwell on mountainous islands. [倭國在百濟新羅東南水陸三千里於大海之中依山島而居] During the Wei dynasty, over thirty countries [of Wa-kuo], each of which boasted a king, held intercourse with China. These barbarians do not know how to measure distance by li and estimate it by days. Their domain is five months' journey from east to west, and three months' from north to south; and the sea lies on all sides. The land is high in the east and low in the west. (tr. Tsunoda 1951:28) In 607 CE, the Sui Shu records that "King Tarishihoko" (a mistake for Empress Suiko) sent an envoy, Buddhist monks, and tribute to Emperor Yang. Her official message is quoted using the word Tiānzǐ 天子 "Son of Heaven; Chinese Emperor". "The Son of Heaven in the land where the sun rises addresses a letter to the Son of Heaven in the land where the sun sets. We hope you are in good health." When the Emperor saw this letter, he was displeased and told the chief official of foreign affairs that