The Grand Parade was a festive highlight of the 450th anniversary celebration of 3 October. Students and staff members from Leiden University participated with an impressive float.

Her Royal Highness Princess Beatrix of the Netherlands will attend the Dies Natalis ceremony at Leiden's Pieterskerk on Friday 7 February to celebrate our 450th anniversary.

No procession of professors, just a handful of people in the church and snowdrifts outside Leiden’s Pieterskerk: 8 February 2021 was no ordinary Dies Natalis. Carel Stolker transferred the rectorate to Hester Bijl, and Annetje Ottow became the new President of the Executive Board. With an honorary doctorate…

Leiden and The Hague have an extra 450 trees thanks to a special campaign to mark the 450th anniversary of the Relief of Leiden and Leiden University’s foundation. Over the past few months, Stadslab Leiden has worked on an initiative to plant young trees with the residents of the two cities.

What is freedom worth in times of hunger? ‘Beleg’ is a modern interpretation of Lucretia van Merken’s 1774 play. With five performances in Leiden’s Schouwburg theatre, the play is a prominent part of the Relief of Leiden celebrations, and Leiden alumni are playing a big role. Take a look behind the…

‘Be yourself. Be as gay, queer, trans as you can and show the world you exist.’ These rousing words from Looi van Kessel marked the start of the third Pride Leiden for the university boat, with the theme: ‘450 years of being yourself’.

Some thirty Leiden students balanced on SUP boards for the Supping for Sustainability Lustrum activity. Together with alumnus Merijn Tinga, better known as the Plastic Soup Surfer, they paddled their boards through the Leiden canals and waterways, fishing plastic waste out of the water.

To mark the university’s 450th anniversary, the Leiden Discoveries science route has been updated and was relaunched on the Night of Discoveries. New signs in town and a revamped website tell Leiden residents and visitors the stories of the city’s spectacular discoveries.

The university has been shaping the city of Leiden for 450 years. A brief history of the university buildings that have helped define the city.

Discover budding creators, artists and researchers at the Night of Discoveries art and knowledge festival. And many researchers from Leiden University are taking part.

Ten Leiden museums and heritage institutions have curated the online exhibition ‘Carel’s Universe’. They selected objects from their collections that symbolise retiring Rector Magnificus Carel Stolker and the research in Leiden. With direct references, playful associations and the odd nod and wink.

Ten years ago, a new reward system was introduced in Dutch prisons: the only way prisoners could earn extra ‘freedoms’ was through good behaviour. Jan Maarten Elbers concludes that this system does little to encourage behavioural change and can even be counterproductive.

Organisation

University lecturer Tazuko van Berkel is one of this year's laureates of the Ammodo Science Award. The award includes a sum of 350,000 euros that she can use as she wishes to explore new avenues in basic scientific research.

Early July was the graduation ceremony of the Leiden Leadership Programme,: a moment to reflect and celebrate the outcomes of eight months’ hard work. Leiden’s Marekerk was filled with colourful music and some wise pieces of advice: ‘Find the path that suits you best.’

From a powerful documentary to a heartwarming classic: four Leiden alumni have chosen their favourite films and will introduce them at Leiden International Film Festival.

They confounded expectations and went to university anyway – as a woman of colour, a working-class student or refugee... Throughout the centuries the university has always welcomed pioneers. Students for whom going to university was not the obvious choice and who did not grow up in an academic environment.…

What will it be like to study at Leiden University in 2075? Ten surprising, artistic uni-visions could be brought to life. It’s up to you to vote for your favourite.

Career and apply for jobs, Study support

Career and apply for jobs, Study support

A dissertation covered in hot pink faux fur, antique prints of PhD ceremonies, a pot encrusted with sealing wax: the Hora est! anniversary exhibition at Oude UB takes you to the ritual yet idiosyncratic world of PhD ceremonies.

Are you curious about how the human skeleton works? Discover this and more on 3 October in Leiden and on 4 October in The Hague.

There are many links between Leiden and the US. The highest office there has been held an impressive nine times by presidents with Leiden roots. This has led to memorable visits to Leiden University.

Paul Gobée (LUMC), Kirsty Rolfe (Humanities) and Frank Takes (Science) have been nominated for the Leiden Teaching Prize 2023.

Amid the many traditions of Leiden’s 3 October Festival, a relative newcomer is beginning to take hold: the Science Market. At market stalls, the people of Leiden could explore or even participate in Leiden’s research – performing an ‘operation’ in the street, for example.

The university was a gift from William of Orange to the people of Leiden for their courageous resistance to the Spanish. We’ve all heard the story of the university’s foundation. But its foundation was also a success story for two friends.

The Plants & Planets exhibition brings two worlds together in a dazzling mix of science, nature and art. It opens at Old Observatory Leiden and Hortus botanicus on 7 February.

Glorious sunshine, dozens of enthusiastic academics and huge numbers of Leiden residents ensured that this year’s special jubilee version of 3 October University was a great success.

It is with deep sorrow that we share the news that our dear colleague Andrea Evers passed away on Monday, 4 August 2025. Since 2013, Andrea had been affiliated with the Faculty of Social and Behavioural Sciences at Leiden University as Professor of Health Psychology. She was an undeniable driving force…

Ijeoma Uchegbu is Professor of Pharmacy at University College London (UCL). As a female scientist of colour, she was initially reluctant to play an active role in the university’s diversity policy. Until, that is, she had a radical change of heart: ‘I knew it; I had to become an evangelist.'

The members of the Duivelsei student association are games mad, be it computer or board games. Game of the Goose and Ludo have fallen out of favour. The students prefer more-challenging board games or online gaming instead. ‘You can be yourself here.’

The university is launching a campaign to focus extra attention on our smoke-free university locations. The University is using aptly named cigarette barrels to try to show clearly just how many cigarette filters are being saved from the environment. How harmful are these cigarette filters to the e…

Anthropologist Rodrigo Ochigame studies how AI is changing the practice of scientific research. From astrophysics to mathematics to climate science, they find that the adoption of new AI models is raising questions about what counts as reliable scientific evidence.

Protests have been raging in Iran for two months since the death of 22-year-old Mahsa Amini. The role of social media in the protests against the Iranian regime should not be underestimated, says Senior Assistant Professor and Iranian Babak RezaeeDaryakenari.

Researchers from the LUMC and the Universities of Granada and Almería have found a gut bacterium that is associated with stronger muscles in people and mice. Their findings, published in the journal Gut, hint at the potential for new probiotics to support muscle strength and healthy ageing.

Career and apply for jobs

Buurtlab 070 is a new Leiden University project in which residents, researchers and students from The Hague work together on climate, sustainability and biodiversity solutions. What do they expect of the lab?

There are many tributaries to Rosalin Kuiper’s story and they all lead to the sea. The 28-year-old sailor was one of the five-person Team Malizia in the world’s most prestigious sailing competition: the Ocean Race.

Exhibition

Alumni who live and work in Brussels met on 18 February at the annual Leiden Alumni in Brussels Event. As well as celebrating Leiden University’s 450th anniversary, they also looked at the challenges Europe faces.

450 years

450 years

Arts and culture