Pi Day occurs every year on March 14th. Pi is 3.14 hence why it is celebrated on the 14th of March. There is also a Pi Approximation Day which is observed on July 22nd of each year.
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1. Meet the state requirements for a PI license. In Virginia, you must be at least 18 years of age and a U.S. citizen or legal alien. 2. Complete the mandatory training courses provided
http://www.ehow.com/how_6246568_becomepivirginia...

A numerical value used to calculate the area and circumference of circles.
http://wiki.answers.com/Q/Why_is_pi

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