π Day 2012

Credits: "Designed by KamranAydinov / Freepik"

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.

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.
There are many ways of celebrating Pi Day. Some of them include eating pie and discussing the relevance of π.

And it's just a coincidence, but it is also Albert Einstein's birthday... So, one more reason to celebrate!
Source: http://www.piday.org/