450 years

In exactly 450 days’ time, on 8 February 2025, it is the university’s 450th anniversary. We are going to celebrate this with our students, staff, alumni and friends. In the run-up to the anniversary, we are compiling our top 450: Who or what is your favourite?

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.

450 years

The exhibition Leiden celebrates – 450 years of parades at Museum De Lakenhal shows how parades and society have changed through the centuries. Alumnus and historian Danielle van Goethem worked on the exhibition. She gives a preview.

By looking at what is different, researchers often discover the special, the unusual. And that has already brought a wealth of highlights – also in Leiden.

An extra-long procession with musical accompaniment will mark the beginning of the university’s 450th birthday celebrations on 7 February.

During the Opening of the Academic Year 2024-2025, we asked guests for their wishes and ideas for Leiden University's anniversary year in 2025.

This year Leiden will be celebrating the 450th Relief of Leiden. Leiden master’s students are researching this history as part of the ‘Traces of 3 October’ project.

Leiden University and Stadslab Leiden invite you to improve the Leiden and The Hague environment with 450 extra trees – a living reminder of 450 years since the Relief of Leiden and the foundation of Leiden University.

The 50th Top 450 entry has now been published. In the run-up to the university’s 450th anniversary, we are compiling our Top 450. What is your favourite?

An extra-long cortège, three honorary doctorates, a quiz about 450 years of university history, a Dies Natalis rap and a call to defend academic freedom: these all featured in Leiden University’s 450th Dies Natalis celebration and the official start of its jubilee year.

Lawyer, economist, politician and women’s rights activist Lizzy van Dorp is the 100th entry in our Top 450. Who or what is your favourite?

Leiden University is celebrating its 450th anniversary in 2025 with a feast for the eyes, ears and spirit. The anniversary year opens with an extra special Dies Natalis on 7 February. Highlights includes an alumni festival, three exhibitions and a canal concert.

They have known each other since they were small but Rianne and Tom first fell in love when working together at the university. That love culminated in a fairytale wedding amid all the revelry last 3 October.

On 6 January 2025, Leiden Law School celebrated a special milestone: our 450th birthday! Our special anniversary year got underway with a panel discussion with Bonnie Honig, as well as a celebratory toast.

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.

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.

Students from the Royal Academy of Art The Hague (KABK) designed the 450 lustrum logo.

Want to find out how to assemble a human skeleton? Do you know what chemistry can be found around you? And are you easily fooled by fake news? Discover this and more at our Science Fair on 3 October.

On the eve of Leiden University’s 450th anniversary, the 1574th and 1575th Honours College students received their honours certificates. In a crowded Scheltema, people celebrated ‘that so many students have had the opportunity to broaden their horizons.’

The celebration of the university’s 450th anniversary is not confined to the walls of the university. For the 7th time, professors stood in front of the class of grade 7, in both Leiden and The Hague. Four FGGA professors visited primary schools, introducing the children to research questions such as…

A month’s break from your studies, ten days of intensive rehearsals and then a concert tour: the Netherlands Student Orchestra is based on a simple formula. Leiden student Daphne Biron tells us about the orchestra and the concert in Leiden on 20 February.

'The way we consume information has changed dramatically over the past fifteen years. You're no longer just a receiver; you participate, create, and spread information. So why not use that to improve society?'

If you do research on Leidens Ontzet in Leiden, you can count on a lot of interest. But Leiden Kennisstad interns Marieke Nolten and Alexander Nuijten had not expected there would be quite so much interest. They concluded a year of research with the presentation of a scientific paper.

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.

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…

Lara Ummels came from Maastricht to study law in Leiden, and never left. She recently joined the board of the 3 October Association.

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.

Universiteit Leiden stond niet altijd bekend als een bolwerk van vrijheid, betoogt Egbert Koops in zijn diesoratie. Leidsch Dagblad sprak met de hoogleraar rechtsgeschiedenis over academische vrijheid: ‘Het bolwerk van vrijheid moest veroverd worden.’

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.…

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.

After a long night of partying, hundreds of people head to Leiden’s Van der Werfpark early on 3 October for a good singsong. Lecturer in Dutch literature Olga van Marion helped compile the new songbook for the occasion. Which songs were left out and which new hits have taken their place?

Is my cap on straight? Where in the cortège will I be walking? These are some of the questions asked by professors joining the Dies Natalis procession for the first time.

Workshops, tours, talks, music, an AI photobooth, interviews, a special poem and the launch of the LUF Children’s Fund. Alumni celebrated their alma mater’s 450th birthday in style on Saturday at the massively oversubscribed Dies Natalis Festival.

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.

450 years

Each year on the university’s birthday, children at primary schools in Leiden and The Hague have a lesson from a professor – about children’s rights and robots in surgery, for example. The children get to do activities. And ask questions: ‘How do you become a professor?’

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.

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.

Scrap the radical cuts to research and teaching. This was researchers and students’ message to government at the opening of the new academic year. Various speakers in Leiden’s Pieterskerk highlighted the importance of science for society.

Bezoek

Festival

Leiden University will be conferring three honorary doctorates in its special anniversary year. They will be awarded to Eliot Higgins, truth finder and founder of Bellingcat, Bonnie Honig, expert in feminist theory and legal theory, and Kelly Chibale, professor of organic chemistry, who works on prevention…

University ceremony

How has evolution shaped our curiosity? And how does that curiosity ensure that we now have the technological ability to discover whether we are alone in the universe? This was all covered during the celebration of Leiden University’s 449th Dies Natalis.

Lecture, Tuesday Talks: Science Insights