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Ben Franklin was getting older and couldn't see as well he had both kinds of glasses near sighted and far sighted he cut the lens in half and then glued them together
this was the 1st pair of bifocals
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∙ 14y ago
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Where were bifocals invented?
bifocals were invented on the 300th block of Market street in Philadelphia
Where and when were the bifocals invented?
ben Franklin invented his bifocals at his house in philly and made them on March 23.1784
How have bifocals changed since they were first invented?
The bifocals have changed alot since they were first invented. They have changed into different sizes, shapes and forms. They had also changed into sunglasses.:)
Where were the first wearable eyeglasses invented?
The Bifocals by Benjamin Franklin in 1784.
Why were the bifocals invented?
they where invented for people who arent far sighted or near sighted so that they can see far and near
Where were bifocals invented?
bifocals were invented on the 300th block of Market street in Philadelphia
Where and when were the bifocals invented?
ben Franklin invented his bifocals at his house in philly and made them on March 23.1784
Who invented bioforcal glasses?
Benjamin Franklin invented the bifocals
Did president George Washington invent bifocals?
George Constant Louis Washington, not the president of the United States, is fabled to have invented bifocals. However Benjamin Franklin invented bifocals on May 23, 1785.
Who invented the bifocals?
I've read that Benjamin Franklin invented them...
What state did ben invented the bifocals?
in Washington DC
Who invented the bifocals and the lighting rod?
Ben Franklin
What did Benjamin Franklin invent and what nationality was he?
he invented bifocals
How have bifocals changed since they were first invented?
The bifocals have changed alot since they were first invented. They have changed into different sizes, shapes and forms. They had also changed into sunglasses.:)
What year was the bifocals invented?
The bifocals were invented in 1784, by Benjamin Franklin, because he had seeing problems, and put two lenses of glass together to magnify his vision.
Why were bifocals invented?
Bifocals are used for distance seeing or at close up seeing.
Who invented the bifocals eyeglasses?
Benjamin Franklin.
