A  Science and Technology Odyssey in Cyberspace-Time 
20000 BC to 1800 AD
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Time Period

Title Page

20000BC-301BC

300BC-1499AD

1500 - 1699

1700 - 1800

 

 


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

Optics

"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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