Finding:

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   Benjamin Franklin

   He invented the lightning rod, bifocals, the Franklin stove, a carriage odometer, and a musical instrument. ... When denied the chance to write a letter to the paper for publication, Franklin invented the pseudonym of "Mrs. Silence Dogood," who was ostensibly a middle-aged widow.
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   Sons of Ben (MLS supporters association)

   The name of the club alludes to Benjamin Franklin, who was one of the most well known Founding Fathers of the United States and a particularly iconic figure of Philadelphia. ... Franklin invented bifocals, while the key, lightning bolts and lozenge-shaped kite symbolize his exploration into the nature of electricity.
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   Glasses

   The American scientist Benjamin Franklin, who suffered from both myopia and presbyopia, invented bifocals in 1784 to avoid having to regularly switch between two pairs of glasses.
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   Bifocals

   John Isaac Hawkins, the inventor of trifocals, coined the term bifocals in 1824 and credited Dr. Franklin with their invention. ... Benjamin Franklin
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   National Treasure (film)

   The coded message in the letters leads them to Independence Hall in Philadelphia, where they find special bifocals invented by Benjamin Franklin inside of a brick from the building.
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   List of United States inventions

   Benjamin Franklin is usually credited with the creation of the first pair of bifocals in the early 1760s, though the first indication of his double spectacles comes from a political cartoon printed in 1764. ... Joseph Gayetty invented toilet paper in 1857.
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   18th century

   1784: The Bifocals invented by Benjamin Franklin
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   List of QI episodes (A series)

   Benjamin Franklin thought it would be a great idea to find a way to stop flatulence from smelling so bad. Amongst his other inventions were bifocals and the fire brigade.
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   Timeline of historic inventions

   Inventions are often invented by several inventors around the same time, or may be invented in an impractical form many years before another inventor improves the invention into a practical form. ... 1784: Bifocals: Benjamin Franklin
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    Ben and Me

    Amongst Amos' contributions were bifocals, inspiring Franklin to build the stove, and changing the format of Poor Richard's Almanac to an event-oriented newspaper. ... Benjamin Franklin

Explore the following pages on Powerset:

• Benjamin Franklin,
• Sons of Ben (MLS supporters association),
• Glasses,
• Bifocals,
• National Treasure (film),
• List of United States inventions,
• 18th century,
• List of QI episodes (A series),
• Timeline of historic inventions,
• Ben and Me