The city of Leiden has a unique combination of knowledge institutions. To ensure this knowledge flourishes and the city gains the maximum benefit from it, the Leiden City of Knowledge partnership was launched five years ago. A new partnership agreement will be signed on 11 November.

In the research for her upcoming book, Elizabeth Stuart: Queen of Hearts, author and academic Nadine Akkerman stumbled upon a little-known portrait of Elizabeth Stuart, Queen of Bohemia and grandmother of King George I, which she believes would have been considered treasonous at the time it was pain…

Graig Klein, assistant professor at the Institute of Security of Global Affairs (ISGA), has been awarded a Starting Grant by the European Research Council (ERC) for his project TERGAP. With this 1.500.000 euro grant Klein and his research team will investigate terrorist groups’ decision-making and strategic…

On 1 May, Casper de Jonge will be appointed Professor of Greek Language and Literature. ‘Greek literature did not come from Athens alone: authors from Egypt, Syria and Asia Minor also wrote in Greek.’

LIACS assistant professor Ben van Werkhoven leads the development of software for optimising graphics processing units. By now, version 1.0 of 'Kernel Tuner' is just around the corner. This milestone shows that the software is ready for serious use.

The Faculty of Archaeology used to be involved in several excavations in Syria, before the outbreak of civil war made travel to the region impossible. One of these excavations is the one of tell Hammam al-Turkman, which started in 1981. Student Ruben Hartman, together with archaeologist Dr Diederik…

Successfully completing a master’s thesis in Political Science is no small feat. Not only is this for most students the most extensive and in-depth research report they have ever written, the work is also held to very high standards. Yet, every year students manage to impress their instructors and demonstrate…

In the 2020 presidential elections, voters in several, mostly southern, electoral districts of the United States saw ‘their’ polling stations closed by the local authorities. In order to cast their vote, they had to travel further or use the mail ballot. Media reports and civil rights activitsts often…

In 1808, the United States banned the transatlantic slave trade. Not everyone was happy about this, as Marcella Schute discovered. In her thesis, she shows how politicians from Louisiana made serious attempts to restart the slave trade in the mid-nineteenth century.

Leiden University will award two honorary doctorates at its Dies Natalis on 9 February 2026. They will go to internet studies scholar Safiya Umoja Noble and philosopher Catherine Malabou.

From monitoring pollution to tracking rainfall, citizen science comes in different shapes and sizes. But at its heart, it’s about the relationships between citizens, policymakers and researchers.

The Just Peace Festival's first edition is live! The Opening Event marked the beginning of two weeks filled with activities to reflect on what peace and justice mean in today's world.

On Thursday 11 December 2025, Daan Roovers, the philosopher and former Denker des Vaderlands (Philosopher Laureate), will give the 54th Huizinga Lecture at the Stadsgehoorzaal in Leiden. Under the title What’s at stake: The boundaries of politics and fair play, she will reinterpret Johan Huizinga’s…

The history of the LGTBI+ collective, deeply marked by episodes of violence, repression, and discrimination, is also the history of the struggle for social change and the conquest of civil rights, advances without which contemporary Western democracies could not be explained. More recently, the implementation…

Since the invasion of Ukraine in 2022, Russia has been conducting a covert sabotage campaign against Europe. The ‘Bewaken en Beveiligen’ (Surveillance and Security) project team at Leiden University has investigated the scale of these operations and compiled its findings in the report Russian Operations…

On 25 February 2021, the UN High Level Panel on International Financial Accountability, Transparency and Integrity for Achieving the 2030 Agenda (FACTI panel) has adopted its final report, to which Valentina Carraro (GTGC) and Hortense Jongen (VU Amsterdam) have contributed by writing a background paper…

Yann Ryan recently joined the Institute for History as a postdoctoral researcher within the starting grant project 'Quiet Rebels? A Social History of Political Rhetoric’ under the supervision of Anne Heyer. Below, he introduces himself.

After an extensive content analysis of the coalition agreement, a sharp fall can be seen in the focus on education & culture, science & technology and defence. This is the conclusion of university public administration professors Gerard Breeman and Arco Timmermans. They compared the content with all…

As one of the first environmental scientists ever, Arnold Tukker received the honorary doctorate at Linköping University on Saturday 12 November. This Swedish university awarded Tukker for his scientific work to establish a circular economy.

To truly help citizens, professionals sometimes need to dare to deviate from the rules. That was the main message during the meeting on ‘rebellious professionals’ in healthcare and well-being, held on 15 October in The Hague.

Researchers Rowie Stolk and Caelesta Braun’s ‘Litigation in the name of public interest’ Kiem project included an interdisciplinary workshop on the same topic. For starting PhD candidates in particular, this was the chance to build valuable connections.

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…

Toogdag 2024 onderzoek kennisdelen

Online book launch

Panel Discussion

Lecture, COGLOSS lecture

Public Administration has been around for 40 years, and that deserves to be celebrated. Before the festivities begin, four figures from the Institute of Public Administration reflect on the past years, with one even looking back over the last 25 years. Speaking are: Bernard Steunenberg, Caelesta Braun,…

Lecture, LUCIS What's New?! Series

While health data is essential for scientific research, that data also needs to be protected. In her doctoral thesis, Irith Kist found a balance between protecting the individual and exchanging health data.

Maak kennis met digitale veiligheid in de podcast over de BSc Cybersecurity & Cybercrime. Experts bespreken actuele thema’s zoals ransomware en online fraude.

Film screening

Lecture, LUCIS What's New?! Series

Debate

Historic and iconic yet expensive and cold. It’s with mixed feelings that the university is leaving the Gravensteen building, which dates back to the 12th century. How was it to work and study in this former Leiden prison?

Reading group

What does it feel like to become a citizen in a new country? For her PhD research, Hannah Bliersbach immersed herself in the world of immigration. She interviewed dozens of new citizens in Germany and Canada and found that citizenship is, above all, a transactional process.

The stadtholder’s court in the Republic of the Seven United Netherlands has long been underestimated. Real courts and the associated court culture were to be found elsewhere in Europe. PhD candidate Quinten Somsen is trying to reverse this image. ‘The stadtholder’s court was actually very lively.’

Fear of repayment demands is causing people to forgo benefits and financial support, even when they are eligible. This was one of the finding of Olaf Simonse in his PhD research on financial stress and the non-use of social services. His proposal: 'Let the government take the initiative.'

‘In the field of AI, Leiden is still a relatively unseen university,’ says Thomas Dohmen. The brand-new Director AI Collaboration Center, would like to forge a Leiden AI collaboration network, with sustainable and impactful relationships between the university and civil society organisations. The question…

When Sjoerd van Trigt, a student of International Studies, is not in the lecture hall, you can find him at Rowing Club Asopos de Vliet. He trains there seven times a week. Soon, he will be leaving for a six-month stay in Japan.

The socio-economic effects of climate change often do not receive enough attention. At the EuroScience Open Forum (ESOF) a group of researchers will provide more insight. How does climate change affect whether people work together or conversely end up as opponents? And what can we learn from societies…

Lydie Cabane, Assistant Professor in Governance of Crises at the Institute for Security and Global Affairs, recently published the book The Government of Disasters. In this book Lydie explores how the South African state bureaucracy reacts to disasters.

Does a communal garden provide cool air and warm neighbourly relations? Does an additional row of trees increase biodiversity? These kinds of questions are key in the COMBINED project, on which Leiden scientists and residents of The Hague, among others, can work for six years with 4 million euros from…

Florian Herrendorf has won the Fruin Prize 2023. His thesis was chosen out of 11 nominees as the best master's thesis in history studies.

Since April 2023 the current war in Sudan has brought larger death, destruction, and displacement than any other ongoing armed conflict on earth. And yet, international media coverage of the conflict remains limited.

A Dutch consortium has received €6.7 million to accelerate the development of nanomedicines together with patients. Researchers from Leiden University play a key role in the project.

Research

There are many links between Leiden and the US. The highest office there has been held an impressive nine times by presidents with Leiden roots. This has led to memorable visits to Leiden University.

In the 60s and 70s, Black Power groups were also active in the Kingdom of the Netherlands. This is what PhD candidate Debby Esmeé de Vlugt has discovered.

Terrorism expert Bart Schuurman has been appointed professor. As a researcher and lecturer at ISGA, he has witnessed the terrorist threat evolve and broaden. 'How can we explain these shifts and protect our society against them? That is what I want to focus on more,' he says.