It"s a bit of a fib that Fibonacci, the 13th-century Italian math whiz, was the first to sketch out a number sequence in which each number is the sum of the two preceding numbers: 0, 1, 1, 2, 3, 5, 8, 13, and so on forever. In fact, scholars in India described the sequence centuries before Fibonacci, and they probably weren"t the first to figure it out either. But in any case, each November 23—that is, 11/23—we celebrate the infinite series known as the Fibonacci sequence.
Fibonacci Day
Today in History
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Grand Teton National Park, Wyoming
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The scene of a literary crime
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Tree of many colors
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All eyes on moths
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National Llama Day
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Atolls in the Maldives
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Purple flowers and Golden Week
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Bohemian waxwings in Canada
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Blue linckia sea stars in Papua New Guinea
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Chapel on the rock
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World Jellyfish Day
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Summer solstice
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World Penguin Day
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Autumn in Alaska
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The Great Blue Hole, Belize
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National Frog Month
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Happy New Year!
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A view fit for a queen
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Flying high on National Bird Day
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A duckling swimming in a water meadow, Suffolk, England
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Arromanches-les-Bains for the 81st anniversary of D-Day
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China s colorful terraced pools
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An historic forest
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Arbor Day
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Juniper Springs, Florida
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Anybody out there?
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A grotesque scene
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Celebrating a young girl s age-old discovery
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‘Think equal, build smart, innovate for change’
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Who doesn’t love a ‘Puppy’?
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