The 3rd month and the 14th day of the year is a consistent day to celebrate the mathematical constant ?. Also known as pi, the first three and most recognized digits are 3.14. National Pi Day is celebrated by pi enthusiasts and pie lovers alike!
HOW TO OBSERVE
Our research has found that there are different ways that people celebrate National Pi Day. Some of the celebrations include:
Use #NationalPiDay to post on social media.
The earliest known official, or large-scale celebration of Pi Day, was organized by Larry Shaw in 1988 at the San Francisco Exploratorium. The Exploratorium continues to hold Pi Day celebrations.
On March 12, 2009, the U.S. House of Representatives passed a non-binding resolution (HRES 224) recognizing March 14, 2009, as National Pi Day.