Pi Day was first celebrated in 1988 at San Francisco's Exploratorium, a museum of science and technology that encourages visitors to be hands-on.

Celebrate Pi Approximation Day on 22 July 2025 with engaging math facts pie themed activities and the story behind 22/7 an ...

Pi Day is beloved by the scientific community worldwide as a way to celebrate the mathematical constant and engage in fun pie-related activities. Here's what to know about March 14.

Pi Day occurs on March 14, because the date is written as 3/14 in the United States. If you're a serious math geek, celebrate the day exactly at 1:59 a.m. or p.m. so you can reach the first six ...

Pi Day 2017 is about protests, too More than 1,200 workers in Silicon Valley are expected to rally at a Tech Stands Up event in Palo Alto, Calif., to support "values that drive Silicon Valley." ...

Pi Day deals: Pizzas and pies &pizza: If you're in Washington, D.C., Philadelphia or Baltimore, you can get married at &pizza on Pi Day, when the shops are turned into a Vegas-style wedding chapels.

What is Pi Day, and when was it first celebrated? Pi Day was first celebrated in 1988 at San Francisco's Exploratorium, a museum of science and technology that encourages visitors to be hands-on.

Pi Approximation Day occurs every July 22nd. It celebrates pi, a key mathematical constant. Pi relates a circle's ...

The holiday has gotten such recognition that in March 2009, the U.S. House of Representatives designated March 14 as Pi Day. MORE: Indiana once tried to define Pi as 3.2. The bill almost passed.