China Historical GIS, Harvard University and Fudan University CC BY-NC 4.0 https://chgis.hudci.org/tgaz/placename/hvd_83013 許昌縣 许昌县 Xuchang Xian 县 縣 xian county 534 4 922 4 POINT point N 34.16586 E 114.01630 FROM_AC
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许昌郡 Xuchang Jun 许州 Xu Zhou 颍川郡 Yingchuan Jun 许州 Xu Zhou 颍川郡 Yingchuan Jun 颍川郡 Yingchuan Jun 许州 Xu Zhou
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CHGIS