Pi Day celebrates the mathematical constant π. First marked in 1988, it became an official US holiday in 2009, encouraging ...

News 9 celebrates Pi Day on March 14, discussing pi's significance and invites viewers to enjoy pie in honor of the day.

Friday is Pi Day, a national celebration of the mathematical concept, which is the ratio of a circle's circumference to its ...

Whether you’re a math whiz or you simply love desserts, National Pi Day is one of the sweetest holidays of the year. In case ...

Pi Day celebrates curiosity, creativity, and, let’s face it, carbs! Indulge in pies, explore math trivia, or bake ...

Pi Day rolls around every year on March 14. It is observed on March 14 because 3, 1, and 4 are the first three significant figures of π, making the date (3/14) a perfect match to honor the ...