March 14—aka Pi Day—isn’t just for math nerds. It’s the one day a year where we celebrate the magic of the number π (pi), which starts at 3.14 and goes on forever. But Pi Day isn’t just about ...

Add Yahoo as a preferred source to see more of our stories on Google. If those questions are running through your head, keep on reading! Ahead, you'll find everything you need to know about Pi Day.

Today marks National Pi Day in the United States and around the world. The holiday commemorates a timeless symbol beloved by many in mathematical and scientific communities, while making the most of ...