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.
Join the 2023 celebration
The best way to celebrate the IDM is to host your own event.
Publish it in our mapWe'll help people in your town find out about your event.
Keep in touch and receive updates and news about the International Day of Mathematics via email
You will only receive one or two emails per month at most. Your personal data won't be shared with any third party nor used for any other purposes, and you can unsubscribe at any time.
A new theme every year
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 was proposed by Marco Zarco Rotairo of the Trece Martires City National High School at Indang, Cavite, Philippines.
The same theme had also been proposed for IDM 2022 by the London Mathematical Society, based on the importance of improving Equality, Diversity, and Inclusion (EDI) in the mathematical community.
Others also proposed this theme, with slight variations in the wording. Blanca Margarita Parra Mosqueda, from ENES León, UNAM, Mexico, says:
According to Fin McLaughlin from Cabot Learning Federation, Bristol, UK:
Luis Miguel Paz Corrales, from Universidad Pedagógica Nacional Francisco Morazan, Langue, Valle, Honduras, adds:
Creative worldwide challenges
Each year we invite you to participate in a creative challenge along with your class, family, friends, colleagues or community.
In 2020, you made short videos showing the many ways that Mathematics is Everywhere.See the 2020 video
In 2021, you used mathematics to create posters sharing ways to make the world better.Visit the 2021 poster gallery
In 2022, you teamed up, or explored your town, to take pictures with mathematics.Explore the 2022 photo galleries
In 2023 , we'll have a surprising new challenge. Follow us to be the first to know.Sign up for updates