As you may know, it is my firm and unflinching belief that our math & science “holidays” should be scheduled so that they actually teach something about the number being celebrated. Sure, 3.14 is a reasonable estimate of **π**, and March 14th does represent that number in typical US calendar notation (which has no respect for the hierarchical organization of dates).

But, that says nothing about what **π **represents. It represents the relationship between the radius (**r**) of a circle and both its circumference (**C=2πr**) and area (**A=πr**^{2}). When it comes to expressing this relationship using dates, I prefer circumference because both the radius and circumference are lengths. Also, expressing the year as a circle makes sense to me (and, based on their mythologies, a large number of human cultures).

If **C** is 365.25 days and **π **is **π**, then **2r** is approximately 116 days, which makes **r** approximately 58 days.

Which is why, at **The Finch & Pea**, 27 February is Pi Day.

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