Sunglasses were invented in China

In Roman times, Emperor Nero liked to watch gladiator fights through emeralds, to prevent the sun from entering his eyes. It is likely that humans, in periods prior to the invention of sunglasses, also applied various materials to their faces to protect their eyes from the sun's brightness, but there is little evidence of this phenomenon before the twelfth century.

The 12th century is when sunglasses were invented correctly, in China. They used lenses made of imperfection-prone quartz to block sunlight and primitive frames to protect them from the face. These sunglasses do not protect against harmful UV rays and do not allow the wearer to see better (in fact, they make it very difficult to see), but they somewhat relieve the sun from shining in their eyes. Only the rich possessed them, but they found many uses: Chinese leaders and judges, for example, realized that they could use sunglasses to hide the expression of their faces when talking to someone. one, thus allowing them to appear emotionally detached. situations.