It would be another 30 years before the United States House would pass a resolution officially recognizing March 14 as National Pi Day. Pi ... digits. The symbol has a much deeper history dating ...

If you remember from school, Pi is the ratio of a circle's circumference to its diameter. It is a number that is usually written as 3.14. Around Pi Day ... your hat size a different way.

Math fanatics from all around the world and everyone else who just loves ancient Greek pi (or pie) celebrate on March 14.

Pi Day is a favorite holiday for both food lovers and mathematicians. For the foodies, the reasoning is simple. Pi Day brings discounts and deals for people looking to grab a pizza to celebrate ...

It's Pi Day! While the celebration is focused on the mathematical symbol, it also acts as the perfect excuse to eat a delicious, savory pizza or sweet, mouthwatering pie. While fun to focus on the ...

Pi belongs to a huge mathematical group called irrational numbers, which go on forever and cannot be written as fractions.

Ladies and gentlemen, get ready to get your nerd on. Know what today is? It's Pi Day. What's that you say? Why, it's March ...