A  Science and Technology Odyssey in Cyberspace-Time 
20000 BC to 1800 AD
An e-book for the entire family from science-ebooks.com
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Time Period

Title Page



1500 - 1699

1700 - 1800



Back to Timeline 300 B.C. thru 1499 A.D


"The modern reinvention of spectacles occurred around 1280-1285 in Florence, Italy. While it's uncertain who the inventor was, it is quite clear that spectacles quickly took hold into common use in that city, and use of them spread outward to the rest of the known world in just a few years. Considering the large percentage of people with visual problems, it's not difficult to understand why there was such enthusiasm." From: Early History of the Lens

 Optics Timeline




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