Pi Day is such a huge holiday that it's hard to imagine it didn't exist until 1988. The first party in honor of the amazing mathematical entity known as "pi" began that year when Larry Shaw, a ...

Egyptians believed that the pyramids of Giza were like math marvels, built on the principles of pi. The fun fact about this ...

If you like pies or mathematics, the Exploratorium is the place to be on Sunday, when the hands-on science museum celebrates the number that knows no end at its Pi Day. For those who know more about ...

It’s Pi day! So what better way to celebrate than with games that involve the math of circles? On this most circular of days, we present three classic toys — hula hoops, yo-yo’s and Connect Four — and ...