最終更新日：2022/12/24
The political boundary in the feudal period was relatively stable but by 377 B. C. seems to have moved south to the vicinity of Sung-tzu 松滋 a little north of the Yangtze (Ch'eng H.J., 1966).
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The political boundary in the feudal period was relatively stable but by 377 B. C. seems to have moved south to the vicinity of Sung-tzu 松滋 a little north of the Yangtze (Ch'eng H.J., 1966).
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