Are You Familiar with Elementary School History? Take This Quiz and Recall What You Remember From 3rd to 5th Grade.
Benjamin Franklin boasted an impressive resume, including roles as a postmaster, politician, freemason, inventor, and diplomat. Which visual aid for improving eyesight is attributed to him?
Correct Incorrect Bifocal lenses - In 1784, Benjamin Franklin expressed his satisfaction with inventing "double spectacles," which allowed clear vision for both near and distant objects.