Today is the "Pi DAY". We have dedicated special dates to celebrate various reasons. And March 14 (or in numbers 3-14) is the day dedicated to celebrate the mathematical constant "Pi". The representation of this date consists the first three digits of the mathematical constant "Pi". Thus it is selected as the "Pi" day. It is a day celebrated by mathematics lovers and probably a day hated by maths haters.
|Pi Day Google Doodle|
There are sites specially designed to celebrate this day such as http://www.piday.org/. And it contains useful information about the constant "Pi". Alternatively another day is celebrated as the "Pi" approximation day which fall on July 22nd (22/7) which represents the widely used approximation value of "Pi".