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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Giant anteater
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Tre Cime Nature Park, South Tyrol, Italy
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Giant sequoias, Sequoia National Park, California, USA
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Pink dahlia flower
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Town of Pienza in Tuscany, Italy
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Koala sleeping in a eucalyptus tree
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Italica, an old Roman city in Santiponce, Andalusia, Spain
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African elephant calf, Masai Mara National Reserve, Kenya
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Ribadesella, Asturias, Spain
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Dolbadarn Castle, Llanberis, Wales
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Colonnade in San Miguel de Allende, Guanajuato, Mexico
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The Gothic Gate in the Adršpach-Teplice Rocks, Czechia
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Northern hawk-owl
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Pygmy three-toed sloth
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Leopard sleeping in a tree in Masai Mara National Reserve, Kenya
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Golden larches and Prusik Peak, Enchantments, Washington, USA
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Silbury Hill, Wiltshire, England
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Yellow-billed hornbills in Kruger National Park, South Africa
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Beaver
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Dubrovnik, Croatia
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Cenote Nicte-Ha, Tulum, Mexico
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Village of Oia, Santorini, Greece
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Yoho National Park, British Columbia, Canada
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Vancouver Coastal Sea wolves
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Athens and the Acropolis, Greece
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Florida burrowing owlet, Cape Coral, Florida, United States
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Splügen Pass, Switzerland
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Fish River Canyon, Namibia
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Beech trees and anemone wildflowers, Jutland, Denmark
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Aqueduct, Arkadia Park, Poland
Bing Wallpaper Gallery

