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Licemer1 [7]
3 years ago
11

Who invented bifocal glasses

History
1 answer:
jonny [76]3 years ago
8 0

History of bifocals and trifocals

Benjamin Franklin, the early American statesman and inventor, is credited with creating the first multifocal lens for eyeglasses. Prior to Franklin's invention, anyone with presbyopia had to carry two pairs of eyeglasses — one for seeing distant objects and one for seeing up close.

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John C. Calhoun, Andrew Jackson and Henry Clay were key players in this piece of history.
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John C. Calhoun was an outstanding<span> U.S. </span>national leader and spokesperson <span>for the slave-plantation system of the </span>non modern<span> South. As a young legislator </span><span>from South </span>geographical region<span>, he helped steer the States</span><span> into war with kingdom</span><span> and established the Second Bank of the U.S</span>.<span>He was one of Jackson's Vice Presidents and was the creator of the idea of nullification.</span>
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Which statements describe the Hebrews and their beliefs
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