This day only comes 'round' once every year!

March 14 is celebrated as Pi Day because the date, when written as 3/14, matches the start of the decimal expansion 3.14159… ...

Saturday's Google Doodle celebrates everyone's favorite math holiday, Pi Day. The Doodle features an animated illustration of how the mathematical constant is us ...

Every year, math nerds and dessert enthusiasts unite to celebrate Pi Day on March 14, a date whose digits represent the first ...

Pi Day is a day for food and restaurant chains to highlight their own pies to commemorate a math equation.

Pi Day is tomorrow — March 14 — a day dedicated to the mathematical constant “pi,” or 3.14. It’s become a popular opportunity for students to celebrate math and learn how it shapes the world around us ...

Pi Day is celebrated every year on March 14, honouring the significance of the mathematical constant π and its applications ...