Yu, Qin, 1284-1333, creator Hu, Delin, Kaozheng. Zhou, Jiayou, Kaozheng. 于欽, 1284-1333 胡德琳, 考證. 周嘉猷, 考證.
Qing, between 1781 and 1911] 清, betwttn 1781 and 1911].
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