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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Duckling in a water meadow, Suffolk, England
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Kaiserstuhl, Germany
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Start Point Lighthouse, South Devon, England
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Peña Roya beech forest, Moncayo Natural Park, Aragon, Spain
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Masoala National Park in Madagascar
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Thorny devil, Australia
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Edinburgh Castle, Scotland, United Kingdom
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Arraial do Cabo, Brazil
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Lençóis Maranhenses National Park, Brazil
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Indigo bunting
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Great white egret, Hungary
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Petroglyphs near Fruita in Capitol Reef National Park, Utah, United States
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Roller coaster in Nagashima Spa Land, Mie Prefecture, Japan
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Abraham Lake, Alberta, Canada
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Bardenas Reales Biosphere Reserve and Natural Park, Navarra, Spain
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Dhaka, Bangladesh
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Tre Cime di Lavaredo, Italy
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Dedham, Colchester, England
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Annas hummingbird
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Skara Brae, Scotland
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Castell Coch, Tongwynlais, South Wales
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Mount Rainier National Park, Washington, USA
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Salzburg, Austria
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Red deer stag in De Hoge Veluwe National Park, Netherlands
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Emerald Bay and Fannette Island, Lake Tahoe, California, United States
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Blueberries growing in the wild
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Whooper swans
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Grey seal sleeping on the beach, Orkney Islands, Scotland
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Black-winged stilts, France
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Allens hummingbird
Bing Wallpaper Gallery

