RE: A weapon like no other: The ancient Chinese Sword of Goujian, found in a tomb, is perfectly sharp after more than 2,500 years

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A weapon like no other: The ancient Chinese Sword of Goujian, found in a tomb, is perfectly sharp after more than 2,500 years

in cn •  7 years ago 

Extraordinary study, highly reccomended

cn
7 years ago by

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