Monday, March 14 (3/14) is Pi Day, the day when we celebrate the mathematical constant of the ratio of the circumference of a circle to its diameter, which is approximately 3.14159.
According to the official Pi Day website, Pi has been calculated to over one trillion digits. It is an irrational and transcendental number that will continue infinitely without repetition or pattern.
Pi Day was organized by Larry Shaw in 1988 at the San Francisco Exploratorium when he and other physicists marched in a circle and then ate fruit pies.
Coincidentally, the day is also Albert Einstein’s birthday.