Benjamin Franklin was one of historys greatest inventors who created bifocals, the lightning rod and swim fins but never patented any of his discoveries. He believed that seeking patents would lead to disputes and bitterness. Instead, Franklin chose to share his inventions freely with the public, aiming to improve life for everyone. His approach reflected a commitment to the free exchange of knowledge and a quiet generosity that favored societal progress over personal gain. | The History Page

Benjamin Franklin invented bifocals out of diplomatic necessity. #historyfacts #invention #didyouknow | Ancient Records

Benjamin Franklin invented bifocals not for convenience but for high-stakes diplomacy. | History Vault

Progressive lenses work in the same way as bifocals and trifocals but have a wider range of visual grade. It is “multifocal” so you can focus on any object from any range more easily. Best of all, because they look like regular glasses, they can help you stay looking young! #ExecutiveOptical | EO-Executive Optical