It is believed earliest known official celebration of Pi Day was organized by American physicist Larry Shaw in 1988 at the San Francisco Exploratorium. For those who are wondering what it is, it's Pi Day.
The Massachusetts Institute of Technology (MIT) and the Princeton Universities have devised their own unique ways to celebtate the day.
If you're the kind of person who spends all their time memorizing the infinite digits of pi, you'll be able to make quick work of Ansel's pie recipe, which calls for less than 15 ingredients. Interestingly, Albert Einstein's birth anniversary falls on March 14, which is also celebrated at Princeton by organising an annual Einstein look-alike contest. Though modern mathematicians have calculated more than one TRILLION decimal places beyond the standard "3.14", pi is an irrational number that continues on to infinity!
Pi represents the ratio of a circle's circumference to its diameter.
The value of pi is 22/7 and today even school children use the value to calculate the circumference and area of a circle by substituting the value of pi in the formulas. He went on to create a caramel apple pie which according to him, it is one of the most classic forms of apple pies, therefore symbolising the mathematical constant pi which like an apple pie remains a constant favourite among the people. The Pilish dialect was invented, in which the numbers of letters in successive words matched the digits of pi.