Happy ‘Pi’ Day!
(From piday.org) 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…
Read all about here:www.piday.org
Read more about Pi Day at Wikipedia:https://en.m.wikipedia.org/wiki/Pi_Day