Last modified on 6 May 2013, at 18:48

Category:Guo Shoujing

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English: Guo Shoujing, a Chinese astronomer, engineer, and mathematician born in Xingtai, Hebei and living during the Yuan Dynasty
中文: 郭守敬

Media in category "Guo Shoujing"

The following 6 files are in this category, out of 6 total.