Celebrate the International Day of Mathematics 2023

Celebrate the International Day of Mathematics 2023
Mar. 31, 2023

March 14 is already known as Pi Day and is celebrated in many countries worldwide. It is named after the important number π, the ratio between the circumference and diameter of a circle, and approximately equal to 3.14. The International Day of Mathematics (IDM) celebration expands Pi Day to include the whole spectrum of mathematics. Mathematical language and reasoning are accessible to everyone. This year, the IDM will be held under the theme “Mathematics for Everyone”.

IDM 2023 is celebrated on all continents, and new countries are joining this year: Curaçao, Haiti, and Fiji. All over the world, people are organizing festivities, and teachers celebrate in the classroom, for instance, by playing Towers of Hanoi and Stockmeyer. Celebrations take many forms: national and local competitions, conferences, exhibitions, and talks organized by mathematical societies, research institutes, museums, schools, universities, etc.

The special feature of IDM 2023 is the Comic Challenge. Over 1700 individuals, schools, and organizations have sent a comic to illustrate this year’s theme, “Mathematics for Everyone”. The comics will be made available on March 14 and remain in a public gallery to all under a free and open license.

French workshops for primary and secondary mathematics teachers from Haiti and the Democratic Republic of the Congo have accompanied the IDM this year. It is part of a special series of online teacher trainings supported by the Simons Foundation to further engage with Africa and Latin America and to expand the network for local IDM celebrations.
The IDM website is the main hub for the International Day of Mathematics:


It hosts information material to be used by press and organizers (including logos and flyers in different languages) and proposals for activities related to the theme for everyone interested in hosting an event. All the official material provided through the website is under an open license, which means it can be freely shared, translated, and adapted


All News

Apr. 2, 2013

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Mar. 12, 2013

The Italian edition of Scientific American, Le Science, has published a very nice piece by Roberta Fulci about the IMAGINARY platform launch. You can find it here (in Italian). 

Have you seen more articles or references about IMAGINARY in the news? If so,...Read more

Mar. 7, 2013

We are very happy that the user response to the new IMAGINARY platform was so big - too big for our server capacity. Today in the morning we registered 1.3 million accesses on the site (before 11:30 am) and we had to react quickly to shift the website to a new server. This caused several delays and also the platform was not online for about 2 hours. We are very sorry for this! 

Now the platform is up and...Read more

Feb. 10, 2013

On March 5, 2013 the new exhibition “Mathematics of Planet Earth” (MPE) and the new IMAGINARY platform will be launched officially at the MPE UNESCO day. The platform will host the open source exhibition, which will be physically displayed for the first time at UNESCO and remain there until March 8. The venue is...Read more

Dec. 12, 2012

The new Museum of Mathematics (MoMath) will open its doors in Manhattan, New York. “Mathematics illuminates the patterns and structures all around us. Our dynamic exhibits and programs will stimulate inquiry, spark curiosity, and reveal the wonders of mathematics. The Museum will have its grand opening on Saturday, December 15, 2012 at 11 East 26th Street in Manhattan.”

IMAGINARY is present with one exhibit: a...Read more