Happy Spreadsheet Day! Be they a pivot table pro or an entry-level novice, spreadsheet users worldwide have one person to thank: Dan Bricklin released the first electronic spreadsheet program on this day in 1979. The day celebrates the sophisticated grids that have reshaped businesses from accounting and engineering to project management. But data handling did not begin in the digital age. Ancient civilizations had their own ways of recording and tracking the world around them, as seen in our homepage image.
Spreadsheet Day
Today in History
More Desktop Wallpapers:
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Pollinator Week
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Longer days mean warmer sand
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Rock of ages
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Pollinator Week
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Göreme, Cappadocia, Turkey
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Desert bighorn sheep in Valley of Fire State Park, Nevada
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Swinging into International Jazz Day
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World Penguin Day
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Mada’in Saleh archeological site in Saudi Arabia
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Prasat Phanom Rung temple ruins, Thailand
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Travel Sunday: Liverpool
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Craters of the Moon centennial
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A hero for the 21st century
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World Chocolate Day
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Vietnam’s new bridge deserves a big hand
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Notes from an underground lake
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Bear Hole Brook, Catskill Mountains, New York
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Bernina Pass, Graubünden, Switzerland
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Al-Khazneh in Petra, Jordan
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Sweetheart Abbey, Scotland
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Fall comes to Pando
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Ruins of St. Dwynwens Church, Ynys Llanddwyn, Wales
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Muir Woods National Monument anniversary
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Apple trees in spring, Germany
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Remembering the Velvet Revolution
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The Great Blue Hole, Belize
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Hemakuta Hill, Hampi, India
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Pride 2025
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Salt of the earth
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Crescent-tail bigeye fish, Great Barrier Reef, Australia
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