Pi Day is an annual national celebration of the mathematical concept, which is the ratio of a circle’s circumference to its ...

Box of Maine, a gift shop in Brewer, giving away free whoopie pies on Pi Day, donating 10% of proceeds to the Rand-May ...

Aside from being Albert Einstein’s birthday, this specific date is known for another mathematically-relevant reason: it’s pi ...

March 14, a.k.a. 3/14 — is also Pi Day, because Steph and Pi — also known by its logo, π — have infinite similarities. Pi is ...