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’.

Media outlets Investico, de Groene Amsterdammer and Trouw reported on the wide-scale collection by the Dutch police of personal data of demonstrators and their family members. Bart Schermer, Professor of Privacy and Cybercrime, commented on the issue.

Cornald Maas was able to ‘pioneer’ in Leiden. This Dutch Studies graduate, presenter, programme maker and publicist combined an active student life with studying hard.

Language can be a time machine: we can learn from ancient texts how our ancestors interacted with the world around them. But can language also teach us something about people whose language has been lost? PhD candidate Anthony Jakob investigated whether the languages of prehistoric populations left…

Hans Slabbekoorn is specialised in animal sounds. On 1 July, he was appointed professor of Acoustic ecology and behaviour. A great honour, according to the new professor. ‘This job never gets boring, whether I am investigating the urban jungle or marine noise.’

Rik van Gijn was appointed professor of Ethnolinguistic Vitality and Diversity in the World from 1 December 2024. He is keen to use the position to set up research on language vitality. ‘People almost never give up their mother tongue entirely voluntarily.’

Again we had an unusual year, but also this year graduations still continued. We are well aware of the fact that at the start of your PhD track you had never imagined a graduation ceremony in the current context. Nevertheless, our warmest congratulations to the graduates at LACDR in 2021:

Facility

A new LUMC study has changed our understanding of how cells work. Researchers have discovered that the CFAP20 protein acts as a kind of ‘traffic controller’ on DNA. Without this protein, chaos ensues, potentially causing cancer. Their findings have been published in the prestigious journal Nature.

Do you know what to do if a rubbish bin catches fire, a student takes ill or a colleague falls off their bike? Our emergency responders do. They are ready to evacuate buildings, fight fires and offer first aid. Why not join the team?

What exactly does it mean when your doctor says you have a ‘good chance’ of survival? Leiden researchers discovered that there is a big difference in how people interpret such probability phrases. And that can be a problem, warns lead researcher Sanne Willems in her blog post.

113 Suicide Prevention gave a guest lecture about suicide prevention at the Spanish Steps in Wijnhaven

The JUL board 2025/2026 consists of five colleagues:

Within our university, we believe it is important to remain in dialogue with each other, to hear what is going on, and to take steps together. This allows us to build an environment in which we can work and grow together.

AI offers opportunities to make your work easier. However, there is also a downside to AI that may have consequences for your privacy and that of your colleagues. On this web page, you will find more information about the responsible use of AI within Leiden University.

Giving an effective lecture requires not only careful preparation of the content, but also clear structures, visual support and presentation techniques. Some guidelines and tips to keep your lectures engaging and well structured are presented here.

Maileon statistics give you insight into the success of your email campaigns. How often was an email opened, which links did recipients click on and how many unsubscribes were there? With that data, you can optimise your campaigns.

Follow these steps to start a new mailing or newsletter.

Are you a PhD candidate, and is there something you’d prefer to discuss with someone other than your thesis director or supervisor? The confidential counsellor for PhD candidates is here to help. You can speak to him/her in confidence and receive advice. If you experience symptoms of physical or mental…

Leiden University is committed to creating a pleasant working environment for its staff. It may nevertheless happen that you find yourself unable to work due to a temporary or long-term illness or disability. The university occupational health physicians can help you reduce health risks and give you…

Leiden University is committed to creating a pleasant working environment for its staff. It may nevertheless happen that you find yourself unable to work due to a temporary or long-term illness or disability. The university occupational health physician can help you reduce health risks and give you…

The EU aims to combat tax avoidance with a blacklist, but this policy has far reaching consequences for non European countries. It leads to unequal treatment and largely fails to achieve its goals. This is shown by Federica Casano’s PhD research.

Anne Land has been working at Science Communication & Society — the department that researches and teaches science communication — for fourteen years. What makes her work special? ‘That moment when students suddenly realise: this is exactly what I want to do.’

The Dutch police force has been deliberately storing personal data relating to millions of Dutch people for many years now. In doing so, the institution has been knowingly breaking the law. Bart Schermer, Professor of Law and Digital Technology expressed his concerns on Follow the Money – a platform…

End Fossil, Open Leiden and Students for Palestine incorrectly claim that a meeting will be held with the Executive Board on Friday 11 April. This statement is to correct these claims and clarify the situation.

In the Pioneers of Leiden University series we talk to past and present students who were the first in their families to go to university. In this third instalment we talk to Jos Schaeken (1962) dean of the Honours Academy and Professor of Slavic and Baltic languages and Cultural History: 'I had to…

How to take ownership of your career? To find out, students from ‘Design Your Career as a Climate Change Maker’ visited a farmer who has done just that. They learned from him that it’s never too late to start working on something you believe in.

Why is water wet? What is ADHD? In De Hoe?Zo! Show, curious 9-and-10-year-olds get answers to their questions. PhD candidates take to the stage to demonstrate just how exciting science can be while enhancing their own communication skills at the same time.

You have prepared a research project, put together a plan, and you are ready to travel to the country where you will be conducting your fieldwork. What do you do when Covid suddenly makes that impossible? Nadia Sonneveld was forced to relocate her project Living on the Other Side to a hybrid form: ‘It…

Her father is a miller, so it’s hardly surprising that Esther van der Ent is also fascinated by windmills. Alongside her work at the Centre for Environmental Sciences (CML) and the Leiden-Delft-Erasmus alliance, Esther is now training to become a miller herself. ‘This craft mustn’t be lost,’ she say…

Today marks the launch of the LDE Bachelor Honours Programme Sustainability. Students from Leiden University, TU Delft and Erasmus University will work together on concrete sustainability issues of organisations. Interest in the new programme turned out to be overwhelming. Two lecturers involved share…

Nine students dove into a challenging iGEM project this summer. With their idea, they aim to make antibodies more efficient - and in the meantime learn at least as much about collaboration, creativity and their own future.

The EU is aiming to deter economic coercion with a new legal instrument. Freya Baetens will elucidate this in her inaugural lecture on October 27th.

Assistant professor Joost Willemse firmly believes that as a teacher, you’re never done learning. ‘Students ask questions about things you’ve never thought of yourself. Ultimately, that makes you better at your job.’ That’s why he always encourages his students to ask questions. And it’s appreciated:…

‘A Muslim and a Jew in the house of God.’ This is how historian Nadia Bouras introduced her recent conversation with colleague Sara Polak in Leiden’s Hooglandse Kerk. They discussed the rising tensions since the outbreak of the Israel-Hamas war. ‘Dare to ask each other questions.’

Black-and-white photographs filled with solemn young men and distinguished professors line the walls of the Grand Auditorium. Young women are missing from the photos; women rarely obtained PhDs 50 years ago. And this article is about that group, the PhD candidates between 1966 and 1972, who were invited…

In July 2022 our alumnus Samatar Botan received the news that he had received the NWO Mosaic 2.0 grant. This grant enables him to start a PhD research at our Faculty on the ancient Aksumite Empire, a topic that is close to his heart. We speak with him about his ambitions and drive. ‘I want to know more…

On April 22, Lasse van den Dikkenberg defended his dissertation: Living with Flint. For this, he examined flint finds from the Rhine-Meuse Delta. These finds belong to the Vlaardingen culture, which existed here from 3400-2500 BC. His research revealed that import played a larger role in the Neolithic…

Izra ter Weer's mother had studied English Language and Culture in Leiden and was always so enthusiastic about her studies that Izra decided to follow in her footsteps. After completing a Master's degree in Linguistics, she now works as a consultant at strategic consultancy firm Sprenkels and organises…

Legal protection in education is something of a neglected child: oddly split between administrative law and civil courts. Brechtje Paijmans is calling attention to this issue as Professor by Special Appointment of Conflict Resolution and Legal Protection in Education.

At Leiden University College, Jaap de Hoop Scheffer urged Europe to show unity and strength in a world defined by fear, power politics, and uncertainty.

Since the beginning of September, Emma van der Plas (20) is the new student ambassador for CADS. Emma is a third-year student and is currently following a minor in Sustainable Development in Leiden. Her goal? To eliminate the stigmas surrounding anthropology. "When I tell people I'm studying anthropology,…

For associate professor Jenneke van der Wal, things have been good recently. After being awarded a Vici and Una Europa grant, she has now also received an Ammodo Science Award. ‘It is a nice confirmation that I am doing valuable work.’

As of this month, Kim Bonger has been appointed Professor of Chemical Biology. As a first-generation academic, she’s especially grateful. ‘I wasn’t exactly a top student at school. I never could’ve imagined this.’

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

Every year, the first Monday in November is Emergency Response Day: the opportunity to recognise the importance of emergency response officers. At Leiden University over 400 enthusiastic and dedicated emergency response officers make sure our students and staff are safe, says emergency response training…

Last Thursday, March 6, Sabine Luning passed away after an illness of more than six months. Sabine was an inspiring teacher who enthused generations of anthropology students with both the theoretical side of social science and the practice of intensive fieldwork. As a researcher, she produced innovative…

On 14 September, the Leiden Essay Film Festival will kick off. This three-day festival, organised by the Academy of Creative and Performing Arts, marks a first for the Netherlands. Never before has there been a public event entirely dedicated to the exceptional genre of the essay film. The festival…

Aphroditi Zoulfoukaridis is the manager of LeidenGlobal, a partnership of several faculties at the University and other academic and cultural institutions in Leiden. In her free time, she enjoys visiting cultural events and loves to travel.

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.