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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
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1 jan 1286 ano - Roger Bacon discovers the convex lens, leading to the making of eyeglasses to correct vision problems
Adicionado na linha do tempo:
1000 AD to 2000 AD
By
cole bennett
18 out 2018
1
0
3113
Data:
1 jan 1286 ano
Agora
~ 739 years ago
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