In 2009, the U.S. House of Representatives passed a resolution declaring March 14 National Pi Day. Celebrate appropriately in ...

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

It's Pi Day, and local bakeries and pizzerias alike are celebrating with sweet and savory deals in honor of that important ...

Just in time for Pi Day, pastry chef Colleen Murphy of Blue Duck Tavern took to Good Morning Washington for a lesson in ...