Why Do We Have Leap Years? (And Why 1900 Was Not One)
A year is about 365.2422 days, not 365. How leap years fix the drift, why century years are usually skipped, and how this affects…
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The strange stories behind everyday things.
Why Is the “Save” Icon a Floppy Disk? A Short History
Why Is the “Save” Icon a Floppy Disk? A Short History
The floppy disk save icon outlived the floppy disk by decades. Where the 3.5-inch disk came from, why it became the save symbol, and…
Read article →The Surprising History of Undo, Cut, Copy and Paste
The Surprising History of Undo, Cut, Copy and Paste
Where Ctrl+Z, Ctrl+X, Ctrl+C and Ctrl+V came from — from Xerox PARC’s modeless editing to the Apple Lisa and Windows keyboards we use today.
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