International Day of Mathematics

Did you know that, to celebrate the beauty and importance of mathematics and its essential role in everyday life, UNESCO proclaimed March 14th as “The International Day of Mathematics”?

March 14 is already known in many countries as Pi Day, 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 celebration expands Pi Day to include the whole spectrum of mathematics.

Every year a new theme will be announced to flavor the spark imagination and creativity and bring light to connections between mathematics and all sorts of fields, concepts and ideas.

The theme for 2020 is Mathematics is Everywhere.

The IDM website is the main hub for the International Day of Mathematics, at

All the official material provided through the website will be under an open license, which means it can be freely shared, translated and adapted.

Let’s celebrate Mathematics together!