About European City of Science

The Science in the City Festival is an important feature of every EuroScience Open Forum dedicated to people of all ages who are curious about science and technology. It is one of the largest public engagement in science and technology events in Europe.

The Festival hosts international performers and is multilingual, engaging tens of thousands of participants coming from all over the world.


Leiden has been awarded the title European City of Science for the year 2022. A prestigious title which also grants the right to host ESOF 2022, the tenth edition of the biggest biennial multidisciplinary science convention of Europe.

Many cities claim to be cities of science. Leiden truly is it. In Leiden talent and expertise have been bringing about innovations for many centuries. In that spirit, all city partners came together towards the common goal of securing the title of European City of Science. For Leiden city it is the logical next step on the international field.

The title has been around a while but Leiden is the first city to create a year-round programme with an international character, following the example of the European Capitals of Culture. In 2022, Leiden will present a 365-day programme full of activities, lectures, workshops, excursions, exhibitions and events for anyone with an inquisitive mind. For scientific professionals, Leiden will be the ultimate European stage for the Dutch knowledge field in 2022.

The ESOF2022 candidacy is supported by two local champions of Leiden University, Prof. Dr Corinne Hofman and Prof. Dr Ferry Breedveld. Both are very proud of the result. The fact that we have been awarded this convention re-emphasises our scientific position as a city of knowledge once again. The theme of ‘Crossing Borders: Responsive Science, Resilient Society’ fits in seamlessly with the city’s motto: ‘Leiden, City of Discoveries’.