In what year Marco Polo reported seeing lens grinding in China?

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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

None Lucian Udrea

by Lussay
(637 points)

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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