More commonly known as Fibonacci, Leonardo Bonacci is notable for popularising the Hindu-Arabic numeral system, with its use of zero, decimal points and 10 numbers instead of the ponderous Roman numeral system. He"s most famous, however, for his sequence of numbers: 0, 1, 1, 2, 3, 5, 8... By adding the first two numbers, you arrive at the third, and adding the previous two numbers, you arrive at the next number, and so on. Disregarding the zero, the first four numbers correspond to today"s date, 11/23.
Spiral aloe, Kangaroo Island, Australia
Today in History
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Tea plantation near Munnar, India
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Whooper swans
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Black bear cub emerges into spring
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Masai giraffes in the Serengeti
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Lake Louise, Banff National Park, Alberta, Canada
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Dolphin pod near Réunion island
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Red fox
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Clark Range, Yosemite National Park, California, United States
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Colonnade in San Miguel de Allende, Guanajuato, Mexico
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Reine, Norway
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Autumn colours below Mount Sneffels near Ridgway, Colorado, United States
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Huntington Beach Pier, California, USA
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Moose, Denali National Park, Alaska, United States
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Tulips at Emirgan Park in Istanbul, Türkiye
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Amazon rainforest, Ecuador
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Burchells zebras
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Whale shark
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Gran Paradiso National Park, Piedmont, Italy
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Red deer stag
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Great horned owl
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Pont de pierre, Bordeaux, France
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Sørvágsvatn lake, island of Vágar, Faroe Islands
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Mount Sopris, Colorado, USA
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La Geria wine region, Lanzarote, Canary Islands, Spain
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Ammonite fossil from Madagascar
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Almond trees in full bloom, California, USA
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Lake Tyrrell, Victoria, Australia
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Wolfe Creek Crater, Australia
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Lion, Queen Elizabeth National Park, Uganda
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Colosseum, Rome, Italy
Bing Wallpaper Gallery

