The Index of Middle English Prose, of which twenty-three volumes have been published since 1984, now has an online presence at imep.lib.cam.ac.uk. Thanks to the kind co-operation of Cambridge University Library and of the publishers, Boydell & Brewer, the indexes to all the volumes are now available…

The project has been done under the supervision of Dr. Diego Garlaschelli and Dr. Frank Takes. The title of the presentation is: ''Complex Network Analysis of Darknet Black Market Forum Structure.

While we are working hard to prepare an exciting and coronaproof course program for 2020-2021, it has been decided to postpone the Medieval Studies Day, that would normally take place in the fall of 2020, until the fall of 2021.

Scott Waitukaitus has been nominated by LION to be Discoverer of the Year 2017. Cast your vote now!

The project has been done in the Quantum Matter Optics group under the supervision of Dr. Wolfgang Löffler and Prof.dr. Carlo Beenakker. The title of the presentation is:

The project has been done in the Theoretical Nanophysics group under the supervision of Prof.dr. Carlo Beenakker. The title of the presentation is: ''Quantum pumping signatures of parafermionic zero-modes.

The project has been done in the Dirk Bouwmeester Lab under the supervision of Dr. Wolfgang Loeffler, Dr. Michiel de Dood and Frank Buters. The title of the presentation is:“A membrane-in-the-middle device for optomechanics.

For many centuries, news about catastrophic events has been disseminated via media such as pamphlets, chronicles, poems, and prints. This conference welcomes contributions that engage with the cultural dimensions of disasters and reflect on representations of catastrophes in different media.

Farewell lunch Stijn Aerts On 25 May, we organised a farewell lunch with a sjoel competition for Stijn, who left the institute on 1 June. Dear Stijn, it has been a great pleasure working with you, and we will surely miss you. We wish you all the best for the future!

On Tuesday, 16 December 2025, a disruption occurred in the functionality of Mediasite. The supplier has been informed and is currently investigating the cause of the disruption.

The university website(s) are currently unavailable.

Japanese was not always the language spoken in Japan. Researchers link the arrival of the language in Japan with the migration of farmers around 400 BC. Linguist Elisabeth de Boer has been awarded an ERC Starting Grant to carry out research on the further spread of the language in Japan.

Groupcard provided prepaid cards to Dutch municipalities for welfare recipients, informal carers and volunteers. Now it is bankrupt, the cards are worthless and consumers and municipalities have lost money. Associate Professor Jessie Pool is investigating whether vulnerable people need better protection…

This week the Turkish army invaded North East Syria. The Turkish invasion might well have had an unintended side effect: the escapement of thousands of Islamic State terrorists held in captivity. Experts on terrorism and politicians fear a resurrection of the terror group.

Professor Ignas Snellen has developed an online platform where exoplanet researchers can post videos about their work: exoplanet-talks.org. ‘For young researchers in particular it’s a way to bring their research to people’s attention.’

Specific fatty acid-sugar molecules allow leprosy bacteria, among others, to hide from our immune system. How exactly is not entirely clear. Hessel van Dijk, who received his PhD on 13 October, replicated the molecules, helping to solve a piece of the puzzle. Van Dijk's dissertation is titled: Synthesis…

Spying in the seventeenth century was a man’s job. That had been the prevailing impression, until the Veni research by Nadine Akkerman from Leiden University...

Juan Masullo J., Assistant Professor at Leiden University’s Institute of Political Science, has been named a 2025 Harry Frank Guggenheim Distinguished Scholar. His research with Nicholas Barnes on public security policy preferences in Rio de Janeiro's favelas has been recognized for its innovative approach…

A flake of limestone (ostracon) inscribed with an ancient Egyptian word list of the fifteenth century BC turns out to be the world’s oldest known abecedary. The words have been arranged according to their initial sounds, and the order followed here is one that is still known today. This discovery has…

The journal Philosophical Transactions of the Royal Society – Biological Sciences published its theme issue ‘Conflict across taxa’ on 4 April, which was edited by Professor of Social and Organisational Psychology Carsten de Dreu. Together with researchers from other disciplines he provides more insight…

The ongoing conflict in Kashmir is often seen as a political issue between India and Pakistan. Idrees Kanth, who has written a dissertation on the subject, believes that the people of Kashmir are the primary contenders in the conflict and should be allowed their right to decide their own political fate.…

The discovery of a planet far too large for its sun defies models about the formation of solar systems and planets. In a paper in Science, researchers, including Yamila Miguel of Leiden Observatory, report the discovery of a planet more than 13 times heavier than Earth orbiting the ultracool dwarf star…

The Dutch research school IPA has awarded former PhD student Sung-Shik Jongmans with the IPA Dissertation Award 2016. In March of that year, Jongmans received his doctorate degree with the rare distinction ‘cum laude’, describing a new method for parallel programming. ‘I aim to simplify programming…

It is time for the international community to put a stop to war crimes – especially against medical personnel, argued international chair of Doctors Without Borders Joanne Liu in her Cleveringa lecture.

Cambridge Studies in International and Comparative Law

An interdisciplinary team of researchers has won the NWO Team Science Award after conducting research regarding the authenticity of several “Hugo de Groot’s” bookchests for the Dutch TV series Historisch Bewijs. The team consisted of researchers from the University of Amsterdam, the Rijksmuseum and…

The 289 students who recently moved into the tower on Kolffpad at the Leiden Bio Science Park are sitting pretty. A self-contained unit in the middle of the campus yet surrounded by green, with a launderette, games room and study area on the ground floor, and, coming soon, a branch of Coffee Star.

His article on ‘the War on Drugs’ in Colombia and the Philippines has been in the top five most downloaded articles of Oxford University Press for some time. Now, Assistant Professor Santino Regilme is to receive a NIAS grant to map out the global war on drugs.

Mavlyuda Yusupova will be Central Asia Visiting Professor in November 2018. She will deliver two guest lectures for Leiden MA and PhD students.

On 19th August, we received the sad news that our dear colleague, Dr Johanna Stöger, has passed on. Hanna died, surrounded by family, at home in Southern Germany. She had battled her illness for some time, and for a while it looked as if treatment would be successful. Alas, Hanna’s recovery was to…

On 1st July Austria will assume the rotating presidency of the Council of the European Union. An appropriate occasion to invite former president of Austria Heinz Fischer to deliver the eighth Europa Lecture on Friday 8th June. During the lecture Mr Fischer shared his views on the history of his country…

Four young Leiden researchers have been awarded a Rubicon grant to conduct research abroad. They will be working in Germany, the UK and the US studying such topics as the origin of galaxies and risk behaviour in young people.

If it is up to university lecturer Evelien Walhout, in a year's time we will know exactly what people from Haarlem and Zwolle died of a century ago. Together with colleagues from other universities, she started the doodsoorzaken.nl platform, where causes of death are recorded. ‘Somewhere around the…

If you had something important to write down in ancient times, you would usually write in Greek in the eastern Mediterranean. University lecturer Joanne Stolk has been awarded an ERC grant to explore the kinds of spelling mistakes that were made in these scripts. And, more importantly, what improvements…

We catched up with Annette Righolt, Honours College coordinator at FGGA, about a grant, a new course and the new year.

On 24 April, Selma Ablak was awarded the distinction of Member of the Order of Oranje-Nassau by the mayor of Amsterdam during the digital honours presentations. Ablak works at the Governance and Global Affairs Faculty Office in The Hague. She was presented with the award partly because of her commitment…

Almost a hundred students and researchers can study in Leiden or go from Leiden to another university abroad as part of an exchange programme. Fourteen exchange projects have been awarded a subsidy from the EU's Erasmus+ International Credit Mobility programme.

Tech company Uber uses various tricks via the Netherlands to avoid paying tax on its profits. A $16 billion inter-company loan from Singapore has prompted questions with experts claiming the loan is not under arm’s length terms. MEP Paul Tang wants Brussels to investigate.

On Wednesday 4 September, Queen Máxima opened the renovated tropical greenhouse complex of the Leiden Hortus Botanicus, an event that attracted wide public interest. Thanks to this renovation, the greenhouses are even better equipped for scientific research.

No evidence found that increasing migration leads to an increase in politically and ideologically motivated criminality. Migration flows have, however resulted in increased polarisation in the Netherlands.

Fiffy the chimpanzee had rapidly developed cataracts in both eyes that made her as good as blind. Eye doctors at the Leiden University Medical Center (LUMC) have now managed to replace the lenses in both her eyes. As far as we know, Fiffy, who is thought to be between 30 and 40 years old, is the first…

Children and young people feel the government is not listening to them during the coronavirus pandemic and this is a cause for concern in light of international children’s rights. This is the conclusion of a recent report by a research team from Leiden University on how children and youngsters have…

For the first time, scientists have traced back a high-energy neutrino to its source in space. It was produced by a so-called blazar—a supermassive black hole. Researchers from neutrino detector IceCube report this in Science. ‘This is a milestone for neutrino science,’ says physicist Dorothea Samtleben…

Translating texts, rehearsing scenes or practising music. Over the last few weeks, students of the BA Classics programme have been focused on just one thing: their production of the Greek tragedy Hecuba. Almost a third of them are involved in it. Iris de Smalen, who plays Hecuba, and Christoph Pieper,…

For the twelfth consecutive year, Leiden University College The Hague has been awarded the 'Top Programme' quality label by the Keuzegids Universiteiten 2025. With an impressive overall score of 89 out of 100 points, the Liberal Arts and Sciences: Global Challenges (BA/BSc) programme has earned five…

He makes music, goes to the athletics track twice a week and, according to his supervisor, has done his research so well that it would not be out of place in a PhD research. Physics and astronomy student Hidde Stoffels' undergraduate research on the properties of dark matter is of such high quality…

What do climate change and traditional Japanese music have to do with each other? A great deal, university lecturer Andrea Giolai suspects. He has been awarded an NWO grant to study the relationship in more depth.

Carel Stolker, former Rector Magnificus and President of the Executive Board of Leiden University, has been made an Officer in the Order of Orange-Nassau for his services to the city and University. Mayor Henri Lenferink awarded the royal honour to Stolker at the University’s Dies Natalis on 8 February…

A new chair has been added to the partnership between Leiden University and the Royal Conservatoire The Hague. Richard Barrett has been appointed Professor of Research in Creative Music (ACPA) as of 1 December 2020. 'For me it is important that music and academia are not placed in an ivory tower.'

On 8 February 2016, Dr Jennifer Tour Chayes, Director of Microsoft Research in Boston and New York, will be presented with a Leiden honorary doctorate by Frank den Hollander, Professor of Probability Theory and Statistical Physics.