Claire van den Helder (fourth-year Cultural Anthropology student) and Orestes Kyrgiakis (second-year Cultural Anthropology student) won the Pieter de la Court Medal 2021. The Pieter de la Court Medal is an initiative for students by students and is awarded annually to students who voluntarily contribute…

Digitalisation can make a huge contribution to a greener future, but it must also be as sustainable as possible. To make significant progress, more collaboration and national leadership will be needed. Leiden University has therefore signed the Digital Sustainability Manifesto, which was presented on…

As of 1 October, David Holmes has been appointed full professor of Pure Mathematics at the Mathematical Institute (MI). His work lies at the intersection of algebra, geometry and number theory.

Prof. Sarah de Rijcke will succeed Paul Wouters as dean of Leiden University's Faculty of Social and Behavioural Sciences (FSW) from 1 January 2024. Paul Wouters will retire at the beginning of January.

It is one of the most famous moments in Dutch TV history: the twenty-three hour long marathon broadcast of Open het Dorp. But what happened to the commune for people with disabilities after that? Monika Baár and Paul van Trigt received a NWO grant of 750,000 euros to map the development of Het Dorp.

How do you progress from an immense gas cloud somewhere in the universe to a star with planets? Research by Astronomy PhD student Martijn van Gelder sheds more light on the earliest phases of this process. He will receive his doctorate on November 24th.

What if AI doesn’t just support engineers, but actually works alongside them? A large consortium, including Leiden University, gets 3.7 million euros. They will explore novel synergies between engineers and AI, in industrial engineering design areas such as automotive engineering.

The right medicine in the right dosage for every patient, that is something medical science aspires. 'Personalised medicine' is the term for that. But it does require a lot of research with patient data and that can be hard to get due to privacy legislation. Researchers Laura Zwep and Coen van Hasselt…

Even though the COVID-crisis continuously evolves and is marked by new realities and uncertainties, we can carefully begin to take stock looking back on the first phases of Dutch crisis management. What can we learn reflecting on the crisis strategies of this extraordinary and transboundary crisis that…

Protests against textbooks on trans persons in America and against a reading hour by drag queens in Rotterdam: it has been raining protests recently against people with a gender expression that does not match their birth sex. Why does this evoke such resistance? We asked Professor by special appointment…

The sixth specialisation of the Master Crisis and Security Management (CSM) will start in September 2023: Governance of Violence. Coordinator of this track is Professor Marieke Liem. She talks about the how and why of this new track and the importance of research in and knowledge of the nature and scope…

Generations of Leiden students and academics have done archaeological research into the early medieval history of Oegstgeest. This makes this old settlement one of the best-documented sites from that era. In a new book Leiden researchers take stock.

On January 1st Jasper Knoester started as our new dean. How is he doing? What exactly does he do? And what does his day look like? In each newsletter Jasper gives a peek into his life as dean.

For four years, Vicky Beckers examined thin slices of wood under a microscope, mapping the anatomy of two plant families. Her research helps identify different wood species, benefiting both the timber trade and archaeology.

De crèche en het klaslokaal zijn misschien wel de meest gunstige plekken voor ziekteverwekkers. Toch is er relatief weinig bekend over hoe kinderen reageren op virussen en bacteriën en hoe het komt dat sommige kinderen veel beter beschermd zijn dan anderen. Simon Jochems, onderzoeker aan het Leids Universitair…

Always wanted to go to a real art auction? Now’s your chance! On 15 February over a hundred works from the LUMC’s art collection will go under the hammer. ‘It’s great fun just to be there, regardless of whether you buy anything,’ says dean and auctioneer Pancras Hogendoorn.

Four researchers from Leiden University have been awarded NWO Open Competition grants in the Science domain. This is for research into subjects such as immune cells in tumours, antibiotic resistance and magnetic semiconductors.

Have you ever experienced the feeling of awkwardness when attending a party where you didn’t know anybody? Ever felt shy at a party within the first few minutes? While this feeling is labelled loosely as feeling socially anxious, social anxiety disorder goes to a much further extent.

Just like scientific articles, patents cite scientific literature to support their findings. These references provide valuable information on how science is used to develop practical applications. However, extracting this information from patents is not that simple.

On Wednesday 27 September we will be holding a debate for students and staff on our links with the fossil fuel industry in relation to the topic of sustainability. All students and staff of the university are cordially invited. If you’re still not sure about whether to attend, these four questions and…

Gabrielle van den Berg became the Academic Director of LIAS on 1 September 2025: “I hope I’ll be able to make a real difference.”

Children who lost their fathers in early modern England ran the risk of being sold to the highest bidder. Although Shakespeare wrote about it in his plays, the practice disappeared from collective memory for a long time. University lecturer Lotte Fikkers is bringing it back to light in a new Vidi research…

Why are health problems such as loneliness and obesity so persistent? What causes them to occur more frequently in some neighborhoods than others? And how can we solve them? You will learn about these topics in the new minor 'Co-creating a Healthy Society'.

Now the introduction weeks can go ahead as usual, the new students’ enthusiasm is overwhelming. It’s back to normal for the student associations too, having had a hard time of it during the pandemic.

What do you do as a government if you are at a loss? You ask an expert for help. In the seventeenth-century Republic of the Seven United Netherlands, one expert after another popped up to advise one of the many regional authorities. In her Veni project, researcher Anna-Luna Post sets out to discover…

Pim Overgaauw is at his best when he can support others. His new position as Institute Manager of the Mathematical Institute is therefore a perfect fit. ‘My main goal is to ensure that our mathematicians can focus on the maths.’

The Executive Board is visiting the university’s institutes to find out what is going on. On 8 July 2025, it was the turn of the Institute of Environmental Sciences (CML), one of the fastest-growing institutes at Leiden University. ‘Our main aim is to preserve our planet for future generations.’

At the moment, many staff members are working intensively on the implementation of BAS InSite, our new administrative system. Much is already up and running – salary payments, invoice processing and the new staff hiring procedure – but some elements still need to be finalised and not everything is working…

Yvonne Erkens has been appointed Professor of Labour Law at Leiden University as of 1 January 2026.

Data Science & AI student Nataliia Bagan combines a passion for mathematics, language, and artificial intelligence. Her exceptional bachelor’s thesis on improving reasoning in large language models earned her a nomination for the Leiden Science Young Talent Award 2025.

A delegation from Zhejiang University in Hangzhou, China, is on a two-day visit to Leiden University. The aim is to explore opportunities for further collaboration and to exchange knowledge with this leading Chinese university.

On 8 December, Dirk Visser was awarded a ‘Gouden Peer’ in intellectual property law by legal platform 'Mr.'. He received the prize after being nominated by 25 fellow experts.

Leiden Law School is organising a summer conference on Law and Artificial Intelligence as part of the interfaculty and interdisciplinary research programme on Artificial Intelligence (SAILS) at Leiden University.

In a new video series for the Corpus Kids Academy, researchers Marieke Bos and Janna Marie Bas-Hoogendam explain how the adolescent brain develops and how anxiety works. 'We wanted to present the information simply, while still preserving the complexity.'

Bacteria whirl around in the mouths of most people, forming dental plaques and sometimes causing nasty gum infections. Treponema denticola might be a dangerous pathogen, but not much is known about this bacterium. It was up to Ariane Briegel and her research group to change that.

For decades, unmarried girls and women in the Netherlands were forced to give up their newborn children. The impact was profound and persists to this day for the mothers, fathers, relinquished children, and the adoptive families in which they were raised.

Since the introduction of ChatGPT, the tool has become immensely popular with students. The Faculty of Humanities is now developing its own bots that can act for students as an individual tutor. In January, product owner Julian van der Kraats assists at a workshop on this technique to interested Humanities…

Martin van Hecke and Lennard Kwakernaak (Leiden university and AMOLF) develop a mechanical metamterial that can count to ten in their research.

Professor Sarah de Rijcke will become the new Rector Magnificus on the Executive Board of Leiden University on 15 January 2026. She will succeed Professor Hester Bijl, who will become Rector Magnificus at Delft University of Technology.

When discussing the history of Islam, the focus is almost always on the history of the Sunni majority. University Lecturer in the history of Islam, Edmund Hayes wants this to change. His new ERC-funded project , focuses on the development of the early Shia community.

Carla van Baalen was awarded the Thorbecke Medal on 4 June. She received the award in recognition of her remarkable and varied oeuvre in the field of parliamentary history.

On 11 January 2026, our esteemed and much-loved former colleague, Prof. Dr Marc Spijker, passed away.

Four students of the Faculty of Archaeology investigated how the current and past inhabitants of the Dutch province of South Holland deal with water. Their findings now feature in an exhibition that can now be visited in the Van Steenis building’s Reuvenshal.

Teaching people to recognize subtle, real-world expressions will help them understand and trust others better. The aim of Mariska Kret is to develop an interactive virtual-reality training tool (E-VIRT) for a broad group of users, including patients. Kret provides a brief description of her idea for…

Timo McGregor recently joined the Institute for History as a NWO-Veni research fellow. His research explores legal and political thought in early modern European empires, with a particular focus on mobility, political belonging, and enslavement. Below he introduces himself.

Organisation

If you have a plan that could improve the education or the learning environment of the Faculty of Humanities in terms of diversity or inclusion, you can apply for a grant from the faculty’s JEDI Fund. This year, Nasreen has been helping to develop a new syllabus for the first-year Ancient History co…

The Covid-19 pandemic has challenged political leaders worldwide, bringing discussion about leadership in times of crisis. In various media outlets, a recurring topic has been the relationship between the gender of a country’s leader and the success of his or her Covid-19 approach. Especially female…

What opportunities does uncertainty offer with regard to innovative behaviour of professionals and what role does leadership play in this?