Pi Day is celebrated worldwide on March 14th every year. The origin of modern Pi Day dates back to 1988, when physicist Larry Shaw organized an event at the Exploratorium museum in San Francisco. Shaw chose this day to draw attention to the first three digits of the pi number, 3.14, and arranged various circle-themed activities at the museum to engage participants in fun activities related to pi. Pi Day is an event held on March 14th each year to celebrate the significance of the mathematical constant pi (π). Pi is an irrational number that represents the ratio of a circle’s circumference to its diameter, with an approximate value of 3.14. The symbol pi (π), representing a constant in mathematics – the ratio of a circle’s circumference to its diameter – is approximately 3.14159. Pi has been calculated to over a trillion digits beyond the decimal point. As an irrational and transcendental number, it will continue infinitely without repetition or pattern. While only a handful of digits are needed for typical calculations, the infinite nature of Pi makes memorizing and computing more digits a fun challenge. HISTORY OF PI DAY The origin of modern Pi Day dates back to 1988, when physicist Larry Shaw organized an event at the Exploratorium museum in San Francisco. Over time, this celebration has gained popularity among the mathematics community and the general public, becoming a symbol of mathematical knowledge and creativity. In 2009, the U.S. House of Representatives officially recognized March 14th as National Pi Day, contributing to the wider reach of this celebration. Thus, Pi Day has found its place on the international stage as a day that promotes mathematical curiosity and encourages thoughts on the infinity and irrational nature of the pi number. On this special day, schools, universities, and math enthusiasts celebrate the beauty of pi and the wonders of mathematics through various activities. These activities include pi-themed contests, calculations, memory games, and even food parties featuring the digits of pi. Pi Day aims to emphasize the importance of mathematics in everyday life while also increasing interest in science and creating a fun learning environment.