Pi Day (March 14) is a day of global mathematical celebration, but it’s not the only numerically significant calendar date.

Pi Day (3/14) often comes with sweet treats; Square Root Day (4/4/16 or 5/5/25, for example) has a certain numerical rhyme.

Special dates, such as March 14 - 3/14 - (Pi Day), and May 4 (Star Wars Day) generate a lot of excitement every year. For mathematicians, there is also the Square Root Day (4/4/16 or 5/5/25). We just ...

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The progress and perfection of mathematics are intimately linked to the prosperity of the state,” said Napoleon Bonaparte, a ...