Over 100 Leiden University alumni gathered in the heart of Brussels for the annual Leiden Alumni in Brussels Event on 29 February. The European Banking Federation (EBF) generously hosted the event for the second time at their premises on Avenue des Arts.

The Surinamese-Dutch language, Parbo Beer and, of course, football. The ‘Dear Aunt Olga’ (‘Lieve tante Olga’) exhibition focuses on the shared Surinamese-Dutch culture. Full of cheer and with life experience to spare, ‘icon’ Aunt Olga (95) leads visitors through a shared history and does not shy away…

Every year around 8 February, Leiden University, the oldest university in the Netherlands, is celebrating its birthday. Why does the King still receive a telegram on the day of the Dies Natalis? 4 questions on the origins of Leiden University and its traditions for celebrating its foundation day.

Leiden patriot Pieter Vreede fought for greater popular influence. Historian Dirk Alkemade reveals how this pioneer used radical means to shape Dutch democracy.

What does it mean to be the ‘perfect student’? This is the focus of the Perspectify exhibition, which was opened on 16 November by President of the Executive Board Annetje Ottow.

Research

The Schoof cabinet has presented its budget. As expected, higher education is facing severe cuts. In the coming period, the Executive Board will regularly look at the consequences of what it deems an irresponsible policy.

Doing a PhD on the side? External PhD candidates, like Joost Van der Helm, just get on and ‘do it’. Besides his hectic job as a justice at the Court of Appeal in The Hague, Van der Helm managed to still find time to write a PhD dissertation.

Whether finding signals of dark matter or discovering hydrogen in the vicinity of exoplanets, Leiden astronomers are world players in their field, and they are part of a long tradition: Leiden was the first university in the world to have its own observatory.

Spui Campus, Leiden University’s fourth location in The Hague, will soon open its doors. The former V&D department store’s transformation into a university campus is becoming more visible by the week. Removal vans will soon be driving back and forth to move all the furniture there in time. The first…

Dick Schoof kan ook wel de buurman van de Haagse faculteit worden genoemd. Vooral vanuit zijn rol bij de NCTV werkte hij veel samen met de Universiteit Leiden en hielp hij onderwijs en onderzoek vooruit, vertelt hoogleraar Terrorisme en Contraterrorisme Edwin Bakker. ‘Voor een kritische vriend was altijd…

Minister Dijkgraaf van onderwijs wil het aantal internationale studenten terugdringen. Maar mag Nederland dat wel? En zo ja, is het ook wenselijk? Deze vragen behandelde Mark Klaassen, universitair docent bij het Europa Instituut, tijdens de slotbijeenkomst van het Honours College Law op 12 juni.

Lots of employees celebrated special successes in 2023. Here’s a list of all those scholarships, awards and honours.

Organisation

50 years ago Lauterbur published the basic principle of MRI. Sine then MRI has become more expensive. Professor Andrew Webb describes what is needed to make MRI available for everybody.

Human resources

An article in Leiden University’s Mare newspaper on 24 September states that the University Council advised against reappointing President of the Executive Board Annetje Ottow. The Board of Governors, deans and Annetje Ottow respond below.

The team from Universidad de los Andes (Bogotá, Colombia) came out on top at the international online Moot Court organised by Leiden University and law firm Baker McKenzie.

‘If we all possessed just an ounce of Cleveringa, then all would be well in the world,’ said Professor Leo Lucassen. In the Cleveringa debate on the line between free speech and threatening speech he called for ‘more guts’. He is not the only one who thinks this is badly needed if the debate at the…

The radio telescope LOFAR, with a major contribution from Leiden Observatory, has produced the most detailed radio map of the Universe ever made. Never before have so many cosmic radio sources been captured in a single survey: 13.7 million.

Every year, Leiden University hosts the Annie Romein-Verschoor Lecture to mark International Women’s Day. This year, historian Nadia Bouras will speak about academic freedom, class and being a woman in academia. And that is just as relevant to men, says lecturer and organiser Looi van Kessel.

An image has great powers of persuasion. It is said that ‘a picture is worth more than a thousand words’. But these days, images can easily be manipulated with severe consequences. ‘Perhaps it’s time to reconsider the value we attach to images’, says Elize de Mul, whose PhD thesis deals with ‘digital…

Which law governs the Strait of Hormuz? Under international law, both Iran and the US are expected to comply with the ‘Constitution for the Oceans’. In practice, the situation is more complicated, explains maritime law expert Hilde Woker.

Are international courts effective? Dr Fatou Bensouda, a former Lead Prosecutor of the International Criminal Court in The Hague (ICC), will discuss this issue during her lecture at the Owada Symposium 2025. The ICC’s efficacy depends on the actions of its member states, she says.

The new Humanities Hub in the Huizinga Building was officially opened on Tuesday 3 December. In the different labs, researchers presented the options for using digital technologies in humanities research.

PhD ceremonies in the Academy Building will be much easier for family, friends and other non-specialist audience members to follow after the summer. The Doctorate Board is pleased to have decided that as of 1 September, all Leiden PhD candidates will begin their PhD defence with a lay talk. ‘It can…

Debate

Conference, D&I Event

Finally we know for sure that there is a black hole at the centre of our own galaxy. Today, astronomers unveiled the first ever photo of Sagittarius A*, a super-massive object at the centre of the Milky Way. This picture could only be taken thanks to the cooperation of telescopes worldwide.

Staff from Leiden University are starting the Dutch universities’ staggered strike against the government cuts on 10 March. Follow the strike in this liveblog.

Exhibition

450 years

450 years

Grotius Dialogue

At the halfway mark, how should we adjust our strategy to a rapidly changing world? Faculty administrators, academic directors, directors of expertise centres, staff from Administration and Central Services, members of the representative bodies and students assessors met on 6 June to discuss this qu…

In the middle of doing research for her master’s thesis, Sara Kalf (24) was hit by a car and got seriously injured. After a long period of rehabilitation and hard work, this week she can finally add her signature to the wall of the Academy Building’s ‘Sweat Room’.

It was a memorable start to September. While Leiden marked the opening of the academic year, The Hague celebrated the launch of three new degree programmes. Students were welcomed on a blue carpet rolled out at the entrance to the lecture halls.

Should we cut our ties with Israel or maintain them? The event ‘A university conversation on Israel/Palestine’ on 1 July revealed the depth of feeling about the conflict, with students and staff grappling with academic values and moral dilemmas.

Meijerslezing, Meijersprijzen en Van Wersch springplankprijs en Nieuwjaarsreceptie 2024

What started as pioneering work, has evolved over decades to become a renowned institute in 2025 with an internationally acclaimed master's programme. 'Almost everyone involved in the aviation and space sector knows us in Leiden.'

Speaking for the Executive Board, Timo Kos reflects on the university’s security policy and what lies ahead. ‘We want to keep our buildings open, but we also need to be able to guarantee the safety of everyone there. It’s a real balancing act.’

Sexual exploitation of children abroad: the Dutch government calls on its citizens to not look away from 'suspicious situations’ while turning a blind eye to the root causes of the problem themselves. Koning, who recently obtained her PhD on transnational sexual exploitation of children from Leiden…

How can we help our students build resilience and prevent unnecessary stress? And how do we break the taboo on failure? These and other questions are what study advisers, lecturers, deans and student support staff discussed at the staff symposium on student well-being at PLNT.

A number of young researchers recently took part in a knowledge mission to Indonesia, aiming to build a lasting relationship with the country. How did they find the trip, what did they do, and how are they creating new connections with scientists in Indonesia?

Space for open dialogue on historical slavery was created at the Keti Koti Table at Museum De Lakenhal, organised by Leiden University and the Municipality of Leiden. There, just metres away from 17th-century paintings, Leideners shared a ritual meal and spoke about the effects of slavery and our colonial…

The former Valkenburg airfield is steeped in history: the Romans defended their empire here, German forces landed here in 1940 and even the Cold War left its mark. Now thousands of homes are planned for the site. Students from Leiden and Delft are exploring how to make this past visible.