High School History Challenge: How Much Can You Recall?

QUESTION 18-What vision aid is Benjamin Franklin credited with inventing, given his various titles like postmaster, politician, freemason, inventor, and diplomat?

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Correct Incorrect Bifocal lenses: Franklin first came up with the idea when he was frustrated with constantly switching between two pairs of glasses, one for reading and one for distance vision. He then cut two lenses in half and combined them to create bifocal lenses.

QUESTION 18-What vision aid is Benjamin Franklin credited with inventing, given his various titles like postmaster, politician, freemason, inventor, and diplomat?

• Contact lenses
• Anti-glare lenses
• Bifocal lenses
• Progressive lenses