Pi Day

Pi Day

On March 14 (3/14) we celebrate Pi Day since 3, 1, and 4 are the first three significant digits of Pi. It's also the day we eat lots of pies. You may wonder why, but you see, Pi is circumference over diameter, that happens to be a constant in every circle.

History of Pi Day

In 1988 at the San Francisco Exploratorium, Pi Day was celebrated on a larger scale. It was organized by Larry Shaw, a physicist. The staff and the public gathered around one of the exploratorium's circular spaces for marching as well as eating fruit pies.

In 2009, on March 12, the U.S. House of Representatives passed a non-binding resolution and made March 14, as National Pi Day. In 2010 Google Doodle was celebrating the day with images of circles and pi symbols.

In 2015, Pi Day had a special significance, as 3/14/15 at 9:26:53 a.m and also p.m, the date and time representing the first 10 digits of Pi.

How to celebrate Pi Day

Simple, by eating lots of Pies! 




My kids absolutely love this show and who needs an excuse for pi lol. Loved this post!

Tereka McCollum

My daughter went to celebration at her school for pi-day! I should have threw a party at home, Im alwasy up for eating pies! Thanks for sharing.


We always celebrate Pi Day! It is always so much fun to share a little math love along with some games and of course pie :)


My family always makes a bunch of pies to celebrate. It is more an excuse to eat a pie.

Angela Milnes

We love Pi Day. Glad to learn its history!


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