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.

With great sadness we share the news that Prof. Harold Linnartz passed away suddenly and unexpectedly on Sunday 31 December 2023. We are all in shock, and our thoughts are with his wife and children, other family, and friends. Harold was at the heart of our institute, as a researcher, as a supervisor,…

On 24 November a High-Level panel discussion on the occasion of the signing ceremony of the memorandum of understanding between the NATO Civil-Military Cooperation Centre of Excellence and the Institute of Security and Global Affairs and the Faculty of Governance and Global Affairs took place at Campus…

An online ceremony, no party and then no signature in the Sweat Room: during the pandemic, many graduation traditions could not take place. Now anyone who graduated in corona time may still come and sign their name.

Even embryos can become embroiled in an evolutionary arms race with another species. Leiden biologists demonstrate this with larvae of the rosy bitterling that parasitize the gills of freshwater mussels. They published their research on February 19 in PNAS.

Around lunchtime on 28 October, 18 of our colleagues gathered in a room at the Lipsius, while 22 other colleagues settled in front of their computer for a one-hour update on the development of the alternative Humanities Campus. Dean of the Faculty of Humanities Mark Rutgers and Vice-Chairman of the…

Are magnetic fields older than the first light? And how did they influence the development of our universe right after the Big Bang? Cosmologists from Leiden, Groningen, and Utrecht are now collaborating to investigate this.

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

The slogan of the Faculty of Archaeology, ‘The Future of the Past starts at Leiden University’, might sound like empty marketing speak. But there is something to it. The past can teach us a lot about climate change and that could make us fear the worst for our future. Archaeologist Gerrit Dusseldorp…

On Tuesday the 5th of September the Faculty of Archaeology officially opened its academic year. All staff and students were invited to this festive occasion.

Do people actually understand the constitution? This is what Jelle But, PhD candidate at Constitutional and administrative law, wondered. To find out, he conducted a survey among 1333 respondents. His research shows that lawyers and other legal professionals actually do not have a better understanding…

Since September, Victor van der Horst is a member of the Faculty Council. Well, not just a member; he is the Chairman! In addition, this master's student in Mathematics also devotes himself to our Faculty in many other ways. 'I'm convinced we need input from all layers to keep improving our Faculty.'…

Light, open and green: a description that fits the new, renovated location of the Faculty of Humanities. The official opening of the Herta Mohr Building took place on 8 October, and it has many remarkable features: for example, recycled ‘mushroom columns’, a pedestrian bridge to the University Library…

Another year has reached its end. And what a year it has been! On December 4th staff and students of the Faculty of Archaeology came together to celebrate and reminisce. The event's central topic was the end of Jan Kolen's term as Dean. Martina Revello Lami moderated the event.

Organisation

Leiden is proud to announce that the city has been selected to host the 33rd Annual Meeting of the European Association of Archaeologists (EAA), scheduled for 25-28 August 2027.

For many years, he was active in various management positions at the LION and even after his retirement he is still very involved. Professor Jan Aarts leads the Leiden hub of the Quantum Delta NL growth fund and is now temporarily responsible for national educational activities. In this way, he is helping…

Alexander van Oudenhoven has been appointed as the new Director of Education of the Governance of Sustainability master's programme. Van Oudenhoven has been appointed for a four-year period, from 1 October 2022 to 1 October 2026. The programme is taught in The Hague.

'Echoes of the Silent Roots' by Mark Lindenberg wins the Multimodal Incentive Grant for Alumni of the Metje Postma Awards. His film is a touching auto-ethnographic project about family estrangement and repair. Ieke van Dam won the Excellence in Visual & Multimodal Ethnography Thesis Prize for her film…

Examining cybercrime from criminological, legal, administrative, and technical perspectives. The new Bachelor's programme in Cybersecurity & Cybercrime addresses the growing demand for versatile cyber professionals..

Lou Boshart won the Excellence in Visual & Multimodal Ethnography Thesis Prize for his film ‘Layers of Confidence’. Lou produced a multimodal thesis about the way rat catchers in New Zealand enact conservation policies and reflect on the ethical challenges of eradicating invasive species. Xiaohui Liu…

The theme of the opening of this year’s academic year was peace and justice. With the climate crisis and the war in Ukraine, these are turbulent times. During the ceremony those present reflected on what the academic community and universities can mean in times of crisis and conflict.

During a well-attended Studium Generale lecture at Rijksmuseum Boerhaave, Professor Ellen de Bruijn demonstrated how hormonal fluctuations influence the female brain. 'We urgently need more attention for the mental health of girls and women during transitional periods.'

On 8 February, the Universities of the Netherlands (UNL) published the measures that universities themselves are intending to take to manage the influx of international students and enhance the Dutch language skills of lecturers and students.

On Tuesday, the 16th of May, the Faculty of Archaeology put a festive end to the 25th year celebrations. The programme included a dedication of our largest meeting room, the sealing and burying of a time capsule, and a BBQ.

After 7.5 years, Jan Kolen is stepping down as Dean of the Faculty of Archaeology. For him, it does not feel like a dramatic moment. ‘It is part of the role: you pass the baton on to someone else.’ He adds with a smile: ‘And I will remain connected to the faculty, so it is not really a farewell.’

They hurtle along at over a thousand kilometres per second: the fastest stars in the Milky Way. PhD candidate Fraser Evans conducted research into these elusive hypervelocity stars and discovered that they have a lot to teach us, about black holes and supernovae, for example.

Today, anyone wanting a new look for their living room watches a home decorating programme or buys an interior design magazine. In the eighteenth century, people went to an upholstry specialist, who would provide you with new wall coverings, curtains and much-needed accessories. PhD candidate Aagje…

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.

Meet Thomas King, alumnus BA International Studies: ‘I’m currently living in London which is a really amazing experience! I’m a British citizen and I moved to the Netherlands to study BA International Studies back in 2017. I had the best three years ever living in The Hague and studying at Leiden.’

Smiling faces, sweltering heat and a record-breaking donation – that was the Leiden Science Run 2025. On Saturday 21 June, the Leiden Bio Science Park turned bright orange as enthusiastic runners completed 4.5 kilometres to support research for vulnerable children.

People suffer from anxiety wait on average twelve years before seeking professional help. That’s a pity and it’s unnecessary, says development psychologist Leonie Vreeke. She is therefore developing prevention programmes where parents learn to react in a helpful way to anxious behaviour on the part…

How can the Netherlands help secure a peaceful future for Israel and Palestine? At a recent meeting at the university, two remarkable speakers shared their perspectives: Somaya Bashir, a Palestinian woman living in Israel, and Palestinian journalist, Houssam Khadra, who fled Gaza over a decade ago.

How do digital technologies affect adolescent mental health and resilience? How do we foster a secure online environment? How should we deal with increasing rates of online crimes among adolescents? During the mini-symposium ‘The effect of the online world on adolescents’, presented by the interdisciplinary…

Minister Robbert Dijkgraaf (Education, Culture and Science) spoke with lecturers and students from Leiden University at Campus The Hague on 27 October about the impact of the Israel-Hamas war. He wanted to know how the conflict was affecting the academic community. Lecturers and students shared their…

Project TARGET is a research project aimed at the relation between the illegal arms trade and firearm violence. In a study conducted in seven countries, the researchers took a look at the differences and similarities. Katharina Krüsselmann and Marieke Liem took a closer look at the situation in the…

Today marks the start of the Healthy University - Let's Walk Week 2021, a week focused on the mental and physical health of our employees. Including an online program with interesting inspiration sessions, office workouts and sports lessons. And join our walking competition in the Ommetje app!

Student of International Studies Susanne Reitsma has a remarkable passion: water. In April 2015, she was elected vice president of the World Youth Parliament for Water, in which capacity she works for worldwide access to clean drinking water and sanitation. What does Suzanne find so special about water?…

Liselotta Jahnke, Jason Irwin, Rachel Cruickshank and Paula Kovač are the new student members of the Programme Committee (OLC). This committee advises the Executive Board and the Faculty Board of CADS about educational matters, such as determining the Course and Examination Regulations and evaluating…

As of 1 April 2025, Professor E.A.L.M.G (Elke) Moons has been appointed professor by special appointment of the chair ‘Crime Statistics’ at Leiden University’s Institute of Criminal Law and Criminology at Leiden Law School.

Salt crystals, a nano-sized golf stick and molten glass. The LION Image Award competition of 2023 yielded a lot of beautiful images once again. But in the end, only one can be the winner.

Jelle van Buuren, university lecturer at ISGA, discusses the role that social media played in the storming of the Capitol last Wednesday

Organisation

The Executive Board of Leiden University has asked the University Council to advise on its proposed decision to reactivate the person counters/sensors in due course. The Council will now look at this carefully before the Board makes a final decision. The advice of the University’s participation body…

From assistance in the event of natural disasters to peace-keeping missions. As a communication adviser, Leonoor van Poelgeest goes to all those destinations where the Royal Navy are active. Why did she choose this work and how has her Public Administration study helped her?

At the age of six, Barbara Gravendeel already knew what she wanted to be: a biologist. The seed was planted in the garden of her childhood home: an old orchard surrounded by a large hedge. Since 1 May, she has been the scientific director (prefect) of the Hortus botanicus in Leiden, and all the pieces…

How do you recount historic events if you are not allowed to talk about them? For his dissertation, Taufiq Hanafi tried to find out how a period of mass murder – despite heavy censorship – found a place in Indonesian literature. PhD defence 31 March.