The On-Line Museum and Encyclopedia of Vision Aids.
|First understanding of astigmatism and its correction.|
|First United States school for refracting opens in Boston.|
|First spectacles invented by an unknown Italian artisan.|
|First spectacles patent, #1359, is awarded to Addison Smith.|
|First gold and silver spectacles made by John McAllister, Sr.|
|First adjustable sidearm implemented.|
|First sidearm design for spectacles advertised--after 440 years.|
|First "Visual Glasses" - Benjamin Martin - an annulus made of horn.|
|First of American Optical's originators (Beecher) makes spectacles.|
|First painting shows Cardinal Hugh of Provence wearing rivet spectacles.|
Choose from the answers below. The questions must be answered in order from 1 to 10.
Just enter the letter corresponding to the answers below for your response.
|Just after 1800||1815||1825-1830||1833||1894|