As we all know, China's four great inventions are papermaking, compass, gunpowder and movable type printing. But Xiaobian thinks that sunglasses should be listed in one of the four major inventions, and even ranked first. Why on earth is that? You can see from the figure below.
Sunglasses were invented by the Chinese
Information shows that sunglasses, or sunglasses, are probably invented by the Chinese. According to guiqian Zhi written by Liu Qi in the 12th century, sunglasses are made of smoke crystals, which can only be worn by government officials. It is not to block the glare of sunlight, but to prevent others from seeing his reaction when listening to confessions.