March 14 is celebrated as Pi Day, an annual observance dedicated to the mathematical constant known as pi, which reflects the ratio of a circle’s circumference to its diameter.
This holiday takes place on March 14, or 3/14, as these numbers correspond to the initial three digits of pi — 3.14, followed by the endless sequence of digits 3.14159 … and so forth.
The concept of Pi Day was initiated by physicist Larry Shaw and was first celebrated in 1988 at San Francisco’s Exploratorium, a renowned science museum. Since then, it has evolved into an international event.
During that first celebration in 1988, Larry Shaw and his wife, Catherine, brought pies and tea to the museum to honor this infinite number. Shaw earned the nickname “Prince of Pi” for presiding over the museum’s annual homage to pi until his passing in 2017.
Pi Day festivities now also commemorate the brilliant mind of Albert Einstein, who shares a birthday with this unique day on March 14.
In 2009, the U.S. House of Representatives officially recognized March 14 as National Pi Day. The Exploratorium announced that this year’s Pi Day would feature the traditional Pi Procession. This event, described as being led by “a high-spirited crowd,” involves participants circling the museum’s Pi Shrine 3.14 times while joyfully waving the digits of pi and dancing to a brass band.
Naturally, all revelers are treated to a complimentary slice of pie, adding to the festive atmosphere.
Today, Pi Day is celebrated globally by enthusiasts of pi and serves as an exciting opportunity to spark interest in science among younger generations.
A particularly special celebration occurred in 2015, when Pi Day was marked on 3/14/15 at 9:26:53 a.m. The combined date and time reflect the first 10 digits of pi — 3.141592653.
