Every 4 years a European Congress of Mathematics (ECM) is organised in one of the European cities in collaboration between European Mathematical Society (EMS) and local organisers.
The EMS provides the programme for the event, while the local organisers provide the accompanying programme and take care of the organisational aspects of the event.
The ECM is the second largest mathematical congress in the world. It is surpassed only the by the International Congress of Mathematics.
In July it will be organised for 7th time. The hosting city is Berlin.
Slovene organisers will host the 8th edition of the congress in 2020.