College students, rocket scientists and math enthusiasts around the world are celebrating Pi Day. The holiday on March 14 — ...

Years ago, the infinite decimal 3.14 or its Greek symbol pi was mostly known to math and science geeks, but now March 14 is also a day for tasty deals. Here’s a little history to whet the appetite.

Pi Day was first celebrated in 1988 at San Francisco's Exploratorium, a museum of science and technology that encourages visitors to be hands-on.

But there's another holiday that offers an even better excuse to indulge in pie: Pi Day, celebrated on March 14, is a ...