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jan 1, 462 - 【南朝】 祖冲之精确地算出圆周率
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#462前
Added to timeline:
人教版高中历史|Chinese students' PEP SENIOR HIGH HISTORY TEXTBOOKS
By
GUZI
10 months ago
4
0
3970
Date:
jan 1, 462
Now
~ 1565 years ago
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