Glasses, as we all know, are an essential tool for correcting eyesight and protecting eyes, and also an ornament for many people to show themselves. But how were the earliest glasses invented? Let's trace the source together ?

Surprisingly, sunglasses were created earlier than optical glasses. In prehistoric times (before 3000 BC), Eskimo people were stimulated by the strong sunlight reflected on the snow, so they made the first pair of glasses with animal bone pieces. This pair of sunglasses helped them block the glare of light, making them protect their eyes well on the snow.

Humans have mastered the use of lenses long ago. It helps people make heat, fire, and collect sunlight. Seneca, an ancient Roman poet, read books by magnifying the image with a glass ball filled with water. At the same time, the upper nobles of the Roman Empire watched the gladiator competition through emeralds.

It was not until the second half of the 13th century that the lens specially used for correcting vision was finally born. In 1289, the glass factory in Florence inlaid two lenses on a carved wooden frame, but the glasses at that time were not worn on the face, but could only be used with hands. In 1730, Edward Scarlett, an optician in London, invented glasses that can be fixed on the front. This kind of glass is similar to the current mountain frame, but without the legs of modern glasses, it can be directly placed on the nose. The optician of the French Queen once wrote: "This is a kind of glasses that can breathe easily". At that time, ladies and gentlemen liked to wear these glasses in places such as opera houses, which was also a symbol of wealth for upper-class society at that time.

From the 18th century to the 19th century, the development of glasses accelerated the modernization process, and people began to use various metals, nails, horns, and other materials for production. With the increasing demand for glasses in the world, the United States took the lead. American Optical, founded in 1833, is the oldest existing glasses manufacturer. It has created a contemporary structure and design that remains in the history of glasses today and has established a complete production system, such as a mirror leg that can bend behind the ear. This design determines the basic shape of modern glasses.