Yes, folks, today is pie day – errrr, no wrong kind… I mean the mathematical irrational constant [3.1415926535…] that is the ratio of any Euclidean circle’s circumference to its diameter, better known as **π**, to which pi day (in date format 3/14) is duly named after. How do you celebrate Pi Day? Well, here’s a handy list of ten suggestions of what to do that’s suitably mathematically geeky to mark the day.

Depending on what pi(e) you’re talking about depends on if you use the letter “e” or not, but **E** as a physical constant indicating energy, is a pretty fundamental part of physics, probably made ubiquitously well known by Albert Einstein’s formula *E = mc2* as result of his solutions to Special Relativity. The 14th March also happens to be Albert Einstein’s birthday. Contrary to popular belief, he didn’t get a Nobel Prize for his work on Relativity, but was awarded the 1921 Nobel Prize in Physics “for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect”, sixteen years after that pesky little energy-mass equation everyone remembers.

Today is also the day when The Queen of Cyprus sold her kingdom to Venice (1489), The Mikado had its first London performance (1885) , The Gold Standard Act was ratified (1900), the first patient was successfully treated using penicillin (1942) and Linux kernel version 1.0.0 was released (1994). I wonder how much it would cost to buy Cyprus these days?

Of course, those culinary bloggers at cakewrecks manage to combine both kinds of pi(e) for the occasion…

Mmmm… pie!

I have a sudden urge to have Steak Pie for dinner. Now, where did my pi slice get to… I mean, pie slice.

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