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
More Desktop Wallpapers:
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Castillo de La Calahorra, Granada, Spain
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Rio de Janeiro Botanical Garden, Brazil
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Black-winged stilts, France
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Skipper butterfly on an Echinacea flower
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The Old Man of Storr, Isle of Skye, Scotland, UK
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Ostuni, Apulia, Italy
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Tree frog, Costa Rica
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Yellow-spotted river turtle, Amazon Region, Ecuador
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Boundary Waters Canoe Area Wilderness
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Wheatear, Peak District National Park, England
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Eurasian red squirrel
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Devils Tower National Monument, Wyoming, United States
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Sydney Harbour, New South Wales, Australia
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Floating fruit market, Kaptai Lake, Rangamati, Bangladesh
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Village of Oia, Santorini, Greece
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Hungarian Parliament Building, Budapest, Hungary
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Thousand Islands region, St. Lawrence River, USA-Canada border
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Superbloom in Carrizo Plain National Monument, California, United States
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Sandstone formations in the badlands near Caineville, Utah, United States
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Death Valley National Park, California, USA
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The Three Musketeers Falls at Iguazú Falls, Argentina
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A kingfisher perched on a branch
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Cenote Nicte-Ha, Tulum, Mexico
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Tea plantation near Munnar, India
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Black-naped monarch
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Oktoberfest, Munich, Germany
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Lion, Queen Elizabeth National Park, Uganda
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Crescent-tail bigeye fish, Great Barrier Reef, Australia
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Bodie State Historic Park, California, United States
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Sea turtle, Fernando de Noronha, Brazil
Bing Wallpaper Gallery

