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About National Pi Day

United States
EVENT NAME:
3.14 Pi Day, Ntl.
EVENT CATEGORIES:
Science & Math , Education
United States
Dates Active:
Begins: Mar 14, 2025
Ends: Mar 14, 2025
INFORMATION URL:
EVENT ADDRESS:
RESERVE TICKETS:

DESCRIPTION:

Pi Day is a play on the date in the United States, and 3.14 is the shortened version of the one million-digit number Pi. In the United States, people write March 14 as 3/14, thus Pi Day. The purpose of this day is to show how fun math can be.

In March 2001, Dan Hellerich bought the domain name piday.org. Since then, the site has undergone four major revisions, with each version leveraged to try out new technologies. In 2008, the site started using WordPress to feature more articles about Pi in our culture. In 2009, the United States House of Representatives passed Resolution 224, naming March 14, 2009, Pi Day.

Pi Day joined Facebook in 2009 and quickly got thousands of "Likes." On Pi Day 2010, Google recognized the holiday worldwide with a doodle on its homepage, helping piday.org serve nearly a million page views in a single day.

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LAST UPDATED:

Dec 30, 2024

EVENT MANAGER:

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