Benjamin Franklin Reveals His Design for Bifocal Glasses

Benjamin Franklin announced his invention of bifocal eyeglasses.

Source

Share This Article

Popular on Shenhuifu

Also on Shenhuifu

• Demonstrations Against Russification of Georgia in Tbilisi
• Hitler’s First Address as Chancellor
• William Smith discovered Williams Point
• The Great Charleston Earthquake, 1886
• When Was FC Barcelona Founded?