In the thirteenth century, the Chinese invented dark glasses to be worn by judges so that none in the courtroom could read their eyes.
The narrowly slit Eskimo goggles are prehistoric and are a protection against snow-blindness, not the direct sun.
Modern sunglasses were a consequence of twentieth-century flight, designed by the American Army Air Corps in 1932 to keep the glare out of a pilot’s eyes.
Tinted spectacles were often prescribed for people with syphilis in the 19th century because one of the symptoms of the disease was sensitivity to light.
Related Posts
-
How do polarized sunglasses block out the glare without affecting your vision?
Polarized glasses cut out the glare from your field of view by filtering out all the horizontal light waves, which happen to be what "glare" is made of. The lens that performs this…
-
Who Invented the First Computer and When was the First Computer Invented?
Who invented the first computer? The answer depends on your definition of a computer. The first known counting devices or tools were Tally Sticks from about 35,000 BC. The Abacus was then invented…
-
Who Invented the Bathtub and When Was the First Modern Bathtub Invented?
For eons people have used stone, brick, or wooden tubs to bathe in, in or around the home. But two men significantly affected the bathtub as we know it today. John Kohler, a…
-
Who invented hammocks and how did the name originate?
Caribbean natives invented hammocks. Columbus saw them lounging around in hammocks on his first trip to the New World. The name comes from the hamack tree, the bark of which was woven to…
-
Who Invented Shoe Sizes, Where Did the Measurements Originate, and Why Is a Baby’s Foot Size Zero?
Roman shoemakers had discovered that the length of three barleycorns equaled one inch. So they used one kernel, or a third of an inch, as a measurement for shoe size. In 1324, King…
-
When Was the Bobby Pin Invented, How Did it Originate, and How Did the Bobby Pin Get its Name?
The bobby pin got its name in the 1930s, but the inexpensive little wire gadget had become popular with flappers during the "Roaring 20s." A short haircut for young women came in vogue…
