What is Pi Day and why do we celebrate the holiday?

Every March 14, mathematicians, scientists and math lovers around the world celebrate Pi Day, a commemoration of the mathematical sign pi.

Every March 14, mathematicians, scientists and math lovers around the world celebrate Pi Day, a commemoration of the mathematical sign pi.

The date written numerically as 3/14 match the first three digits of the never-ending number: 3.14

The unique holiday is one that is discussed by math teachers in schools across the country and bakeries and grocery stores often sell pies at a discount that day.

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.