The first sunglasses date back to the prehistoric Inuits, who wore a piece of flattened ivory over their eyes (made from walrus bones) with narrow slits to look through that blocked harmful rays of the sun reflecting off the ice.
fact
The first sunglasses date back to the prehistoric Inuits, who wore a piece of flattened ivory over their eyes (made from walrus bones) with narrow slits to look through that blocked harmful rays of the sun reflecting off the ice.