PI DAY CELEBRATION (PI = private investigator)
The first three digits of the mathematical constant pi are 3.14. Pi Day has been celebrated on March 14th (3/14) every year since 1988, when it was inaugurated at the San Francisco Exploratorium. In countries where the day is usually written before the month, Pi Day is July 22nd, reflecting the more accurate approximation of pi as 22/7. Interestingly, March 14th is also Albert Einstein’s birthday.
