Feb 17, 2015 Celebrate the Pi Day of the Century Pi Day 2015This coming year (2015) will be a special year since 3-14-15 is part of pi Pi, Greek letter (π), is the symbol for the ratio of the circumference of a circle to its diameter. Pi Day is celebrated by math enthusiasts around the world on March 14th. Pi = 3.1415926535…With the use of computers, Pi has been calculated to over 1 trillion digits past the decimal. Pi is an irrational and transcendental number meaning it will continue infinitely without repeating. The symbol for pi was first used in 1706 by William Jones, but was popular after it was adopted by the Swiss mathematician Leonhard Euler in 1737 (Calculus Humor 2015)Each year pies are ordered for Pi Day celebrations by teachers, accountants, radio personalities, marketing/PR/ ad agencies, students, math geeks, and many others who just want an intelligent excuse to enjoy fresh pie! ~the Pi symbol is available on all of the flavors listed on the menu. ~ we ship most flavors so if you want to send some Pi Day Pie please order by 3/7/15 a.k.a. Pi in the Sky Celebrate Irrationality deliciously!