Celebrate Pi Day!
It's the only holiday to honor a number: Pi Day, on 314, the beginning digits of the infinite, nonrepeating decimal expansion of pi = 3.1415926... As the ratio of a circle's circumference to its diameter, pi is irrational and transcendentalqualities sure to bring a twinkle to any mathematician's eyes. How are people celebrating Pi Day?

In Rhode Island, the AMS will be holding their annual Who Wants to Be a Mathematician game with local high school students.

How about some music? Here's Noam Elkies' composition, Steganographic Étude #1, based on the first 244 digits of pi, with an explanation.

The Exploratorium in San Francisco hosts events every year

National Council of Teachers of Math (NCTM) "Pi Day on Pinterest"

Math Goodies offers lesson plans

College and university math departments such as Princeton University, Missouri University of Science & Technology, Harvard University, University of Adelaide (Vine videos), and MIT have fun on Pi Day

Raytheon's Math Moves U celebrates Pi Day. Make a pie!

See Happy Pi Day video on YouTube. Dr Eugenia Cheng, from the University of Sheffield, explains what Pi is, what it's useful for, and demonstrates a trick to remembering it.

Read more about Pi Day on AMS Blogs: The Pi Day Link Roundup of the Century, by Evelyn Lamb, Pi Day and Other Math Holidays, by Maya Sharma, and The Ubiquity of Pi Day: It’s Not Just for Math Geeks, by Edray Goins.

Search Twitter for hashtag #PiDay to see lots more Pi Day celebrations around the world
If your math department celebrates Pi Day let us know!
Email the AMS Public Awareness Office
From The SelfReferential Cookbook: the first 13 digits of Pi (last displayed digit rounded).