Today it all comes to an end. No, not the world, but a 12-year streak in which each year has offered a magical day like today, when the day, month, and year all coincide. Harmonic convergences such as 12/12/12 aren’t to be sniffed at, as most of us won’t see another one, Mayan calendar or no Mayan calendar. But part of what makes this particular day special is the number 12 itself. How special is it? Here’s a guided tour:
Derrick Niederman is a math professor at the College of Charleston.
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