Archaeologist Virginia García-Díaz made replicas of centuries-old tools to be able to study North Holland settlements from the corded-ware culture. PhD defence 23 February.

Roman philosopher and orator Marcus Tullius Cicero is still used as an intellectual example by politicians and speech writers today. But, he did not go unchallenged in his own day, as a statesman in particular. Classicist Leanne Jansen conducted research into how classical historians judged Cicero’s…

Young children exhibit more aggressive behaviour if their nervous system fails to respond adequately to stress situations and if they are exposed to risk factors such as smoking or psychological problems experienced by the mother during the pregnancy. This is the conclusion of PhD candidate Jill Suurland.…

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.”

‘You are the last generation that will have an effective influence on the future of the world.' This was the message given by guest speaker Maurits Groen to the 135 students who graduated at Leiden University College in The Hague on 6 July.

The new University Sports and Exam Centre is another step closer. Bigger sports and exam halls, plenty of room for meeting people, an open feel that integrates with the Campus Square and the sports fields, optimal acoustics and an uncompromisingly sustainable building with a green facade and solar panels.…

The second instalment of the Humanities Lab - the three-year honours programme of the Humanities – has reached its conclusion. On 12 May, 11 groups of honours student presented their work in the Arsenaal building.

Do you want to show that sustainability and business can work well together? And are you ready for a challenge? If so, you can sign up for the Sustainable Business Battle, a six-week business case challenge in which teams of students help companies find innovative and sustainable solutions.

Sara Petrollino, a university lecturer in linguistics, strongly believes that language influences the way we see the world. An NWO Open Competition (XS) grant will enable her to test this hypothesis among the Ethiopian Hamar people. ‘The idea that everyone thinks in geometric shapes is culturally de…

Cybercriminality and cybersecurity are hot topics, in the academic world as well as elsewhere. But there is room for improvement in this research, says Bibi van den Berg, Professor of Cybersecurity Governance at Leiden University. Inaugural lecture 8 June.

The scientific world is a competitive place. Even so, researchers are often prepared to share their findings with colleagues. This applies particularly to men as a group: women are much less willing to share their work, whether it is with other women or with men. This discovery was made by Leiden and…

First year bachelor students of Security Studies enjoyed an interactive guest lecture by Han van Midden, former mayor of Roosendaal.

New ALMA observations show there is ordinary table salt in a not-so-ordinary location: 1,500 light-years from Earth in the disk surrounding a massive young star. Though salts have been found in the atmospheres of old, dying stars, this is the first time they have been seen around young stars in stellar…

Dust particles in space form the basis for new stars and planets. But what do these particles consist of and how do they behave? Sascha Zeegers studied this. PhD defence 1 November.

Birds around airports are more aggressive and sing as if they have hearing loss. Collaboration between researchers of Manchester Metropolitan University and the Institute of Biology Leiden has led to surprising new findings about the impact of anthropogenic noise on birds around airports. Publication…

At the International Online Conference 'Fair Medicine and Artificial Intelligence' organised by the University of Tübingen (Germany), Hadassah Drukarch, junior researcher at eLaw, gave a presentation on how current algorithmic-based systems may reinforce biases in healthcare. This topic forms part of…

Climate interventions do not lead to more climate action among Dutch, but they do raise awareness about climate change.

BA 3 student Dasha Derzhavets is one of the first students to be back in the lab at the Faculty of Archaeology. She is conducting experiments in the ceramic and experimental lab for her thesis. ‘It is different in the labs, a lot quieter, I can better concentrate on my work however.’

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…

Experiencing what it is like to attend a lecture, asking professors questions and even trying your hand at homework: Experience Days help prospective students learn more about all the programmes offered by the Faculty of Humanities.

How does a lecture work? What does Urban Studies entail? What are International Studies’ career prospects? During the Experience Day, prospective students were given the opportunity to learn more about the programmes of the Humanities Faculty in The Hague.

On 2 November, more than 800 students visited Leiden's Humanities Faculty to explore their options during the Master's Open Day. Read some of their stories here!

Jens Stoltenberg, Secretary-General of NATO, gave a guest lecture at Leiden University on 19 April. His message was clear: increased international tensions call for greater investments in defence. According to Stoltenberg, the Netherlands is not one of the big spenders in this area.

On Friday 13 April 2018, the Department of Child Law of Leiden University was proud to host the international symposium 'Deprivation of Liberty of Children in The Justice System – Towards A Global Research Agenda', organised by Prof. Dr. Ton Liefaard and Dr. Yannick van den Brink.

The European Research Council (ERC) has awarded a prestigious Starting Grant to Leiden archaeologist Dr Nathalie Brusgaard. With this €1.5 million grant, Brusgaard will investigate how the transition to farming in Western Europe affected the relationship between humans and wild animals. A theme that,…

‘Ordinary citizens’ are featuring more prominently in foreign policies which has already resulted in some unexpected outcomes such as Brexit. Jan Melissen, Senior Fellow at the Institute of Security and Global Affairs (ISGA) conducts research into the societisation of diplomacy. He is interested in…

To what extent are the rights of children in the Netherlands guaranteed? On 8 December 2015 the Dutch Children’s Ombudsman has published the Children’s Rights Monitor 2015.

Leiden physicists have managed to detect a single molecule called dibenzoterrylene in a new crystal, and found that it is a candidate component for a quantum network. Future quantum computers will need such a network to work together while maintaining their advantages. Publication in ChemPhysChem jo…

The Dutch Passport Alerts Register (Register paspoortsignaleringen, RPS) lists Dutch nationals (around 8000 in 2021) whose right to a passport has been restricted. As a result, they cannot apply for, renew, or must surrender their passports. Under the Passport Act, the Tax Authority, the DUO (Education…

The impact of war extends beyond destroyed buildings and torn families. In bilingual Ukraine, the ongoing war with Russia is a major driver for increasingly discarding the Russian language. What does this mean for the position of Russian in Ukraine?

On Tuesday 12 January 2021, the Leiden Law School thesis prizes were awarded at the New Year’s event.

During his bachelor's programme in International Studies, Tom de Groot became fascinated by the theme of peace and security. Now he designs and moderates training courses to help professionals develop further in this field.

Jelle van Buuren bespreekt de link tussen radicalisering en psychiatrische problematiek.

On 24 September the Institute of Environmental Sciences (CML) in Leiden will launch the new version of the Pesticides Atlas in cooperation with Rijkswaterstaat and Royal HaskoningDHV. The online tool is now faster, more user-friendly, more accessible and all data can be downloaded directly. Users can…

Merijn de Bakker and colleagues of the IBL-research group of Prof. Mike Richardson provide a unique view on digit evolution in crocodiles and birds in their recent study published in Nature.

From filtering UV light in sun cream to preventing perspiration odour in socks and sterilising fridges and washing machines. The use of nanoparticles in products is increasing. But what is the impact of these miniscule particles on the environment?

How do practice and theory reinforce one another in neuroscience? Professor Birte Forstmann’s inaugural lecture on 2 October will be about building interdisciplinary bridges between cognitive neuroscience and cognitive models. Her approach may lead to brain research with fewer side-effects for patie…

Nadine Raaphorst, university lecturer at the Institute of Public Administration, has been awarded a Veni-subisidy from science financier NWO. This grant of up to 250,000 euros will enable her to set up her own research in the coming years. Raaphorst's research is about consistent decision-making by…

Soil salinity is affecting large areas in the world and millions of farmers are faced with decreasing yields and many are even forced to migrate . Dutch scientists (Prof Dr. Gerrit van Straten (Wageningen University), Prof. Dr. Peter van Bodegom (Leiden University), Prof. Dr. Jelte Rozema (VU University…

Now that selling via digital platforms is flourishing, we need to take a closer look at the rights and obligations of all the parties involved. This is the subject of the inaugural lecture by Leiden Professor Vanessa Mak on 15 October.

Research is at the heart of a solid security policy. That’s why researchers from Leiden are analysing the motives of radicalised people and the biggest risks surrounding digital activity. Read more about their work in the research dossier ‘Security and Threat’.

Leiden University is the highest scoring comprehensive university in the biannual valorisation ranking produced by Elsevier and Science Works. They calculate which Dutch universities best exploit their scientific capital, in economic terms and in terms of societal impact. .

Leaf-eating caterpillars greatly enrich their intestinal flora by eating soil. Even effects of plants that previously grew in that soil can be found back in bacteria and fungi in caterpillars. Researchers from the Netherlands Institute of Ecology (NIOO-KNAW) and Leiden University write about this discovery…

Mariska Jung, Jasmijn Rana and Looi van Kessel receive a €10,000 KIEM grant for

From the very beginning, the Islam has known an oral tradition. It was only two hundred years ago that Muslims starting writing about the history of Islam, on rocks or other hard materials. Arabic epigraphy (study of inscriptions) turns out to be an essential tool in historical genealogy research. Abdullah…

The Lucia de Berk case or the suicide of Slobodan Praljak at the International Criminal Tribunal for the former Yugoslavia: certain trials keep popping up in media. In her dissertation, Tessa de Zeeuw examines the cultural appeal of such cases and analyses artistic responses. ‘Artworks sometimes have…

An enormous number of monumental buildings, such as burial tombs, appeared in Mycenaean Greece after 1600 BC. Why did this urge to build come to an abrupt end 400 years later? Archaeologist Ann Brysbaert investigates the possible causes thanks to her ERC Consolidator Grant.

Interest group Animal Rights has started a test case to prompt the Netherlands Food and Consumer Product Safety Authority (NVWA) to tackle farmers who do not adequately protect their livestock against wolves. The test case concerns a rejected enforcement request to the NVWA. In it, the NVWA were called…

In 2018 the Laboratory Efficiency Assessment Framework (LEAF) was launched in the UK. The aim of this programme was to help laboratories work more sustainably and efficiently. The initiative got a Dutch spin-off in 2021. Since then, a couple of the laboratories at the Leiden Faculty of Science have…

Prof. C. Bakels is an archaeobotanist who devoted most of her career researching farming, its (pre)history and influence on the landscape. Born in 1942, she got her first appointment as a lecturer at Leiden University in 1968. On Monday 16 April, we celebrated her 50th work anniversary.