The Pew Research Center – Monica Anderson
“For almost 30 years, math enthusiasts have been taking part in festivities on March 14 to honor an infinitely long number beginning with 3.14 – the ratio of a circle’s circumference to its diameter, otherwise known as pi. The first official Pi Day was March 14, 1988, when physicist Larry Shaw led staff and visitors to San Francisco’s Exploratorium in a celebration of all things pi-related. Since then, it has been celebrated across the globe, with universities, conferences and even pizzerias honoring the day.”(more)