On Saturday, March 14, 2026, the Exploratorium invites the public to join an all-day celebration of Pi (π) Day, with special ...

Every year on March 14, the scientific community and the world at large celebrate Pi Day in recognition of the mathematical constant with their favorite slice of pie and other quirky Pi-related ...

SAN FRANCISCO -- Every March 14, mathematicians, scientists and math lovers around the world celebrate Pi Day, a commemoration of the mathematical sign Pi. That's because the date written numerically ...

If you've been using Pi Day as an excuse to just eat pie, that's just peachy (or apple or chocolate cream). But there's so much more to know about pi. Here's why we care about pi and its day of ...

Math enthusiasts around the world, from college kids to rocket scientists, celebrate Pi Day on Thursday, which is March 14 or 3/14 — the first three digits of an infinite number with many practical ...

Did you know there are holidays for almost everything? While the U.S. may have 11 official federal holidays, there are actually thousands of quirky, themed days that make the calendar a whole lot more ...

Friday, March 14 marks Pi Day, a celebration of the mathematical constant that (roughly) equals 3.14. And in a shining testament to the United States' willingness to use anything as an excuse to eat ...