I love Facebook.... if it weren't for FB, I would not have known that today is "Pi Day"... a day celebrated around the world to commemorate the mathematical constant "pi". Observed on March 14th since 3, 1, & 4 are the first and most significant digits in "pi"... "3.14".
To use "pie" to recognize "pi" is not so much of a stretch. The mathematical number for "pi" is the ratio of the circumference of any circle (i.e. an actual pie!)... to the diameter of that circle. Instantly, this makes me think of a slice of pie :) Regardless of the circle's size, the ratio will always equal pi... which is approximately 3.14.
So Happy Pi Day, Everyone! Have a slice!