Universities cannot survive in this highly competitive world without collaboration. And the ultimate aim is to make the world a safer and more sustainable place. This was Rector Carel Stolker’s message during the 441st Dies Natalis.

Ilja Leonard Pfeijffer delivered the Huizinga lecture on Friday 8 December in a packed Pieterskerk. The writer seized the opportunity of the 52nd edition to point out the importance of creativity, both for artists and scientists.

Researchers from the Leiden University Medical Center (LUMC) have successfully used stem cell gene therapy to treat a baby with the severe congenital immune disorder SCID. An important milestone: it is the first time stem cell gene therapy of Dutch origin has been administered to a patient, and also…

By chance, computer scientist Hans-Dieter Hiep (Leiden Institute of Advanced Computer Science and Centrum Wiskunde & Informatica) discovered a ‘gaping hole’ in a widely used method for evaluating software security. Hiep patched the hole, causing quite a stir in his field. 'It’s not pleasant when a PhD…

Joeri Reinders, universitair docent bij het LUC, ontving een NWO-subsidie voor het project 'Het KlimaatCasino'.

That the tax authorities are allowed to impose taxes is widely known. What is less well known is when the tax authorities must impose taxes. And what to do when one set of regulations requires the tax authorities to impose taxes while other regulations prevent them from doing exactly that? Vergouwen’s…

Being rejected always hurts, but so does having to reject someone. Social psychologists have discovered that at interviews to select suitable housemates students dehumanise candidates to make it easier to reject them. That may sound harsh but, according to the researchers, it is also logical.

How do you study the growth of microorganisms, the spread of epidemic diseases or the healing of wounds, without actually performing experiments? Daoyi Wang, PhD candidate at the Mathematical Institute, worked on a specific mathematical model that can describe the growth of microorganisms and many other…

He brings order to chaos and analyses satellite swarms. During his PhD research, mathematician Oliver Nagy delved into random networks and how they reach equilibrium. Along the way, he also developed a handy tool. This knowledge is valuable for calculations related to communication networks.

With support of several companies, including Brill Publishers, Elsevier and private foundations, Leiden University Libraries (UBL) and the Scaliger Institute welcome around 15 to 20 Fellows and guest per year to consult and examine material in the Special Collections. The Scaliger Institute received…

A dissertation covered in hot pink faux fur, antique prints of PhD ceremonies, a pot encrusted with sealing wax: the Hora est! anniversary exhibition at Oude UB takes you to the ritual yet idiosyncratic world of PhD ceremonies.

No matter how hard Chinese communists tried to control the economy, they could not stop the free market from flourishing. This was the message given by historian Frank Dikötter on 7 February during a lecture on the Cultural Revolution. He will be awarded an Honorary Doctorate on 8 February.

A celebration was held in the Tabú restaurant: Mark Rutgers, Dean of the Faculty of Humanities, was presented with the first copy of LEAP, a journal where Humanities master’s students can prepare for an academic career by publishing articles themselves.

Several consortia in which Leiden University is involved have been awarded Dutch Research Agenda funding. Leiden is the coordinator of five of these consortia. These five consortia will receive grants worth a total of almost 24 million euros. They relate to interdisciplinary projects that will bring…

How do opinions form and change in large groups of people? That's not just a sociological question, it's a mathematical one. PhD candidate Federico Capannoli studied opinion dynamics. He defended his thesis on November 19.

Researchers and clinicians at Leiden University Medical Centre (LUMC) are about to begin a milestone clinical study. It will be the first time a stem cell gene therapy developed in the Netherlands is used in a clinic. The therapy will be used to treat children with SCID, a rare disorder where children…

Researchers Karène Sanchez and Sary Zananiri tell us about their research project CrossRoads, which investigates Christian communities during British Mandate Palestine (1918-1948) through cultural and linguistic lenses. The project was awarded a VIDI grant by NWO in 2017.

Computer scientist Matthijs van Leeuwen is one of four science faculty members who obtained the Senior Qualification in Education in 2021. What was that like and what drives him? ‘In my own education I would have liked to see more attention paid to the responsibility that machine learning and data mining…

The Natuurwetenschappelijk Gezelschap Leiden (Leiden Science Society) is organising short online evening lectures, every two weeks on Thursday, held by a Leiden scientist who will talk about an aspect of the Corona crisis from their expert point of view. NGL members, alumni, (former) employees, students…

Marta Fiocco has been appointed as of 1 April as professor of applied mathematics, in particular medical statistics. Fiocco's appointment is at the Faculty of Science and at the Leiden University Medical Centre (LUMC). She conducts research into 'personalised medicine', tailor-made medicines for cancer…

The Economic Community of West African States (ECOWAS) has formally approved the withdrawal of Niger, Mali and Burkina Faso from the regional body. The approval comes just days after President Bola Tinubu promised German President Frank-Walter Steinmeier that ECOWAS would handle the three countries'…

Professor Janice Bellace (Warthon, University of Pennsylvania) gives the Social Justice Lecture this year. The title of her lecture will be: ‘Social justice, business and labour rights and the role of the International Labour Organization (ILO) to influence corporate behaviour of multinational enterprises.’…

A new elective course, 'History of Morocco and the Moroccans in The Netherlands

The restoration of the Sterrewacht is proceeding well and is expected to be completed by the end of the year. On Thursday 11 March, the highest point was reached with the restored domes being replaced on the roof.

With support of several publishers and private foundations, Leiden University Libraries (UBL) and the Scaliger Institute welcome around 15 to 20 Fellows and guests per year to consult and research materials from our Special Collections. The Scaliger Institute received many applications this year from…

Arteriosclerosis bears great similarities to autoimmune diseases. Researchers from Leiden University show this in a new study they published in the renowned scientific journal Nature Cardiovascular Research. 'This discovery suggests that treatment methods for autoimmune diseases might also be effective…

As of 1 September, Michel Mandjes has been appointed full professor of Probability and Operations Research at the Mathematical Institute. He succeeds Frank den Hollander, who will retire on 1 October. ‘The combination of deep thinking on your own combined with working towards solutions together with…

The many thousands of small celestial bodies beyond Neptune’s orbit may have ended up there due to a star that passed close to the solar system billions of years ago. This is shown by Leiden simulation expert Simon Portegies Zwart, along with his German and Dutch colleagues. ‘We are answering several…

Today, CBS launches the Center for Big Data Statistics (CBDS), a cooperation of an unprecedented scale in the field of Big Data. Leiden University and HumanityX are key partners.

As of 1 June, Floske Spieksma has been appointed Professor at the Mathematical Institute in Leiden. Her field of study is Stochastic Decision-Making. Within this field, researchers develop mathematical techniques to analyse and improve processes within organisations. ‘As a professor, I hope to safeguard…

Back after pandemic interruptions, the Dutch Network Science Society Symposium took place on May 19th, 2022. The event brought together researchers from around The Netherlands studying complex networks and representing various disciplines, including mathematics, physics, neuroscience, computer science,…

The editorial board of the Leiden Elective Academic Periodical (LEAP) is proud to announce the release of the fourth edition, titled “Subject: Matter”!

On February 10 2025, the Leiden Jewish Studies Network convened a lively roundtable and catered reception at the Faculty Club to celebrate the launch of Dr. Kate Brackney’s new book, Surreal Geographies: A New History of Holocaust Consciousness (University of Wisconsin Press, 2024), winner of the George…

Sarah de Rijcke (CWTS) receives a ZonMw Fostering Responsible Research Practices grant for the project 'Optimizing the responsible researcher: towards fair and constructive academic advancement'.

Milou Deelen (24) rapidly rose to prominence as the Dutch advocate of frank talk about women’s sexuality. It has cost her dear, but she has received so much assent, praise and support that she won’t be giving up anytime soon. In the Annie Romein Verschoor Lecture on 5 March, Leiden University’s celebration…

In 2022, many of our staff and students won fantastic prizes and were awarded important research grants.

An overview of awards and prizes granted to our staff and students in 2019, as well as special appointments and royal distinctions.

Leiden University has a long tradition of Asian language education. Chinese, Japanese and Korean partners are essential in providing a practical side of learning education.

An overview of awards and prizes granted to our staff and students in 2021, as well as special appointments at Leiden University and other institutions.

The Department of Company Law and Financial Law provides education and conducts research in areas including company and corporate law, financial contract- and liability law, corporate governance, sustainability, Dutch and EU financial regulatory law, mergers and acquisitions, insolvency law, and international…

In 2025 hebben medewerkers en studenten van de Universiteit Leiden veel mooie prijzen ontvangen en belangrijke onderzoekssubsidies binnengehaald.

African oral literatures, new media and technologies: challenges for research and documentation

By working together with external social partners, the knowledge of our scientists finds its way into society.

Should we ban snack bars from neighbourhoods where residents are overweight or have diabetes? At the Common Sense about Health knowledge festival, scientists, civil servants and other professionals discussed how South Holland can become healthier. The Healthy Society Map makes it clear where there are…

Chats with students, webinars or online experiences. Fortunately, in these times of social distancing with prospective students currently unable to visit Leiden University, there are plenty of online ways to find out what it’s like to study at Leiden University. What are they?

Recently, archeologists of Leiden University made an excavation in Oegstgeest, where they found a unique silver bowl from the first half of the seventh century as well as imported pottery and winebarrels. Thijs Porck, lecturer in Old English language and culture at Leiden University, places the Oegstgeest…