According to the official history from the Han generation through until the Sui generation, Wa and Tai were described as `Santo' (literally, mountain, island), which backs up the idea that Wa and Tai were in Kyushu as they were clearly perceived as islands at that time
漢代から隋代までの正史によれば、倭・俀は「山島」と明記されているので、倭・俀とは、明確に島であると認識されていた九州の他にはない。