No one is certain who discovered pi as we know it today. But we do have some ideas. It seems that the Egyptians used pi in ...

Celebrate Pi Day and read all about how this number pops up across math and science on our special Pi Day page. Grab something circular, like a cup, measure the distance around the circle, and divide ...

Pi Day,” which is March 14, 3.14, is a day meant to recognize the special, infinite number that can also be recognized by its symbol π. Pi is an irrational number, which means it goes on ...

Happy Pi Day! We celebrate pi on March 14 because 3-14 gives the first three digits of this famous number. But what’s the big deal about pi anyway? Why does it get a day? Well, for starters, it ...

Whether you’re into pepperoni or peach, here are the best Pi Day pie specials that are worth the dough.

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 ...

7-Eleven: Members of the 7Rewards loyalty program can buy a whole pizza for $3.14 on two days — Friday, March 13, and Saturday, March 14 — at participating stores or via the delivery app.

Every year on March 14 (3/14), Pi Day is celebrated by many restaurants and grocery stores with deals on dessert pies & pizza pies! Read on for the list of tasty offers for 2026.

Pi is one of the coolest (and most used) mathematical constants there is. It first arrived in written word on 1900-1600BC Babylonian clay tablets, where pi was estimated to be 23/8≈3.1250. Pi is an ...

It’s Pi Day. What’s that? According to History.com, the day is a celebration founded in 1988 by a physicist named Larry Shaw to recognize the Pi. The date of March 14th was chosen because it is ...