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Category : Society, History & Politics » History | Posted by : Lussay | Posted on : 10/9/2009 | Updated on : 10/9/2009
Keywords : year, grinding, polo, reported, seeing, china, lens, year, marco
In what year Marco Polo reported seeing lens grinding in China?
In what year Marco Polo reported seeing lens grinding in China?
Answers
It was in 1257, 500 years before the Western world began to grind lenses.
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