March 14 is Pi Day, an annual celebration of the world’s most famous number, pi. Founded in 1988 by physicist Larry Shaw, March 14 was selected because the numerical date (3.14) represents the first ...

Get ready to drool! Pi Day pies are taking over social media, and the world can’t get enough. From Oprah to The Big Bang Theory, this math-based craze inspires mouth-watering creations and fierce ...