The International Day of Mathematics (IDM) is a worldwide celebration. Each year on March 14 all countries will be invited to participate through activities for both students and the general public in schools, museums, libraries and other spaces.
March 14 is already celebrated in many countries as Pi Day because that date is written as 3/14 in some countries and the mathematical constant Pi is approximately 3.14.
The International Day of Mathematics is a project led by the International Mathematical Union with the support of numerous international and regional organizations.
Relive the launch of the first IDM, which took place through our website with announcements, videos and images of events happening globally.
Watch the video we created with clips sent from all over the world by people showing us how Mathematics is Everywhere.
Send us your ideas about what the theme should be for next year's celebration. You have time until the 4th of April.
People and organizations all over the world announced events in their cities:
Please note that many planned IDM events have been cancelled due to COVID-19
As part of the celebrations we put together a video with clips submitted by math lovers all over the world who wanted to show that Mathematics is Everywhere
Visit our Worldwide Video page to learn more about the project, watch some other great submissions and learn how you can participate .
Find an event near youThis website will give you detailed information about events in your town.
Keep in touch and receive updates and news about the International Day of Mathematics via email
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Every year we'll announce a new theme to flavor the celebration, spark creativity and bring light to connections between mathematics and all sorts of fields, concepts and ideas.
The theme for 2020 was Mathematics is Everywhere
The International Day of Mathematics (IDM) is supported by the following international and regional organizations: