It's Pi Day! Few other days are so worth celebrating than Pi Day. What did Columbus do? He stole a map from Portugal to prove something pretty much everyone had already figured out centuries before. Valentine's Day was created to help out the failing greeting card industry. But Pi Day? The irrational constant Pi shapes grand structures and monuments. Only the first 39 digits of pi are needed to calculate the circumference of the visible universe with an accuracy of merely the width of a single hydrogen atom. Albert Einstein was born on Pi day. And without the number Pi we wouldn't have delicious blackberry filled baked goodness.