If you ever thought there was nothing in common between pie loves and mathematicians, you are wrong. They have one thing they have in common, which is their love for the 14th of March. The 14th of March is Pi Day. For math enthusiasts, they celebrate Pi, which is one of the crucial numbers in the history of Math. If you do not remember it from your school days, Pi is the ratio of the circumference of the circle to the diameter.

It is rounded up usually to 3.14, which explains why it is celebrated on the 14th of the third month. But, in reality, the number can go on indefinitely. According to the Guinness World Record, the most accurate value ever to be recorded for Pi’s value is well over 62 trillion digits, and if you are a math enthusiast, the number is 62,831,853,071,796 digits long. That huge number was calculated in Switzerland by the University of Applied Sciences in August of 2021.

If you are wondering what does all of this has to do with pie lovers, the answer is simple, if you don’t enjoy math on Pi Day, you can always get a pie. A lot of bakeries and restaurants took advantage of Pi, or shall we say, Pie Day to give something to the pie lovers. So, whether you calculate the number or have a love for pies, let us see how all of this started.

### The History Behind Pi

The first recorded calculation of Pi was around 4000 years ago, during the times of ancient Babylon. They used it to calculate the circle’s area by calculating 3x the square of the circle’s radius. That is according to the Exploratorium, which is a museum located in the state of San Francisco. However, all of the earlier measurements of that number were based on measurements. That was until Archimedes, the Greek mathematician, used the algorithmic approach. As for the symbol itself, William Jones, a fellow mathematician, introduced it back in 1706, but it wasn’t used popularly until Leonhard Euler, another mathematician, used it back in 1737. The symbol itself is the first letter of perimetros, which is the Greek word that translates loosely to the circumference.

### What Started Pi Day as a Celebration

Larry Shaw, a former physicist, was the first to celebrate Pi Day on March 14, which was at the Exploratorium. He celebrated it with tea and pies back in 1988. The museum stated that Shaw himself led the Pi Day celebration and parades every single year until he died in 2017. The date itself is significant in the science world, more than just being a Pi Day. One of the greatest pillars of science, Albert Einstein, was born on the same day back in 1879. The Exploratorium believes that Pi Day also acts as a celebration of Albert Einstein’s life. March the 14th is also the date on which the renowned physicist Stephen Hawking passed away four years ago in 2018.