Eyeglasses are indeed one of the astounding and essential discoveries of the mankind. It is said that without the eyeglasses it would have been an impossible for task for many other inventions to happen. This discovery was done somewhere in the 1200’s, however the real person who have discovered the lens and the eyeglasses is still a mystery.
Although the use of the lens started in the 1200 century, the actual invention of the first bi-focal version was done by Benjamin Franklin in the mid 1780s. He came up with this discovery because he himself was tired, with changing the eyeglasses so as to see clearly and decided to work on inventing the bi-focal lens himself. [Read more…]