Sam Johnston


Sam's latest writings
The History of Sunglasses

It may shock you to learn that sunglasses weren’t always used to protect people’s eyes from the sun. The history of sunglasses dates back to ancient China and Rome. It has been reported that the Roman emperor Nero enjoyed watching gladiator fights through polished gems. In China, sunglasses were used in the twelfth century or even earlier. Sunglasses were first made out of lenses that were flat panes of smoky quartz. These types... (posted by Sam 5 years 352 days ago.)