Today, March 14, 2015, is Pi Day:
Pi Day is celebrated on March 14th (3/14) around the world. Pi (Greek letter “π”) is the symbol used in mathematics to represent a constant — the ratio of the circumference of a circle to its diameter — which is approximately 3.14159.
An extra-special moment comes at 9:26:53 p.m., if you’re inclined to take note of such things.
This particular, extra-special Super Pi Day won’t come around again for another century, so why not enjoy Pi Day this year with a nice piece of your favorite pie?