Pi Day this year is on March 14 (or 3/14). Pi, known by the letter “π,” represents the ratio of a circumference of a circle to its diameter, which is just about 3.14.
In honor of this fun event, numerous business are offering deals for $3.14. For the specifics on the Pi Day deals as well as a short history on Pi, visit NationalToday.
(Photo: nationaltoday.com)