Pi Day occurs on March 14, because the date is written as 3.14 in the United States. Pi is the ratio of the circumference of a circle to its diameter, or approximately 3.14 (its exact value is ...

A collaboration between a Chicago pizza shop and dispensary has high aims for this year's Pi Day celebrations.

Find out how to make this fun rainbow pizza. PHOTO CREDIT: twokidsandacoupon.com COLORFUL RAINBOW PAPER PLATE CRAFT FOR KIDS ...