Smart glasses have been available in various forms ... to the invention of bifocal lenses by American statesman and inventor Benjamin Franklin in 1784, eyewear technology has advanced enormously ...

The armonica is a mechanised version of these 'musical glasses'. It was invented in 1761 by Benjamin Franklin, an important figure in the history of the United States. He was inspired to create ...

Our Founding Fathers had some surprising drinking habits, and Benjamin Franklin was ... should be limited to two 12-ounce glasses per day. According to Franklin's autobiography, at least one ...