Whether it is glasses or sunglasses, it is now commonplace. However, few people may think about when did the glasses or sunglasses we wear today appear? As for the origin of glasses, no exact answer has been given to this day. However, it is generally accepted that glasses appeared after the middle of the 13th century.
The two most common are: one is that according to the 15th-century document "Is the glasses an ancient invention?", The glasses were invented by a monk scientist named Alexandre Spina. . It is also said that the glasses were invented in China, because in 1240, a Chinese writer named Zhao Xizhen wrote in "Dongtian Qinglu": In ancient China, there was something similar to big coins, with a color similar to mica. As I get older, I ca n’t read because of my vision loss, so I wear something like a large coin on my eyes to focus my eyes so that I can see more clearly. Marco Polo also recorded in 1260: "Chinese elderly wear glasses for clear reading."
However, as far as sunglasses are concerned, it is likely that they were invented by the Chinese. According to the "Qi Qian Zhi" written by Liu Qi in the 12th century, sunglasses are made of smoke crystals, which are generally only worn by officials in the Yamen, not for Block the glare of the sun, but let others not see his response when listening to the confession.
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