Zijn corona-complotten waanzin? Jelle van Buuren, universitair docent bij het Institute of Security and Global Affairs van de Universiteit Leiden, discussieert in de online talkshow De Groene Live #25 vanuit Pakhuis de Zwijger over dit thema.

“Very French and very impressive.” Those are the words drs. Isabelle van de Calseyde used to describe the reception at the French embassy residence in The Hague on 2 June 2015. There, she and dr. Sjef Houppermans were presented with an distinction for their remarkable services to the French language…

On 5 November 2021, Professor Michiel van de Sande of the Department of Orthopedics in the Leiden University Medical Centre (LUMC) delivered his inaugural lecture ‘The Art of Doing and Doing Nothing’. Van de Sande used the opportunity to explore both physical and philosophical aspects of co-decision…

Sources for those who want to familiarise themselves with the region.

University Library, Witte Singel 27, 2311 BG, Leiden

Niels van Willigen (Institute of Political Science, Leiden University) puts Dutch participation in UN peacekeeping into an historical context. He analyses the reasons for the Dutch withdrawal from the 1990s onwards, and explores the obstacles and opportunities for a structural return. Van Willigen argues…

De Roy van Zuijdewijn, researcher and lecturer at the Institute of Security and Global Affairs, wrote an opinion piece on the ongoing threat still being posed by Jihadism in Dutch newspaper NRC.

Jeanine de Roy van Zuijdewijn was invited to give the subject matter expert speech during the plenary meeting of the working groups of the Global Coalition against Daesh in Copenhagen on 28 January 2020.

Jeanine de Roy van Zuijdewijn, PhD candidate at ISGA, explained the dilemma countries face in the aftermath of terror attacks.

On December 6th, Bob Schoemaker succesfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Bob on this great result.

Professor of Law and Society, Maartje van der Woude, had an interview in ‘De Groene Amsterdammer’ of 4 September 2018 about her research into mobile border control.

Op donderdag 17 april 2025 neemt prof. dr. Marco Mostert, Hoogleraar Middeleeuwse Geschiedenis aan de Universiteit Utrecht afscheid.

Political scientists Tom Louwerse, Simon Otjes & Cynthia van Vonno introduce the Dutch Parliamentary Behaviour Dataset, a record of parliamentary (voting) behaviour in the Dutch Tweede Kamer (Second Chamber, House of Representatives) since 1945.

As an alumnus of Leiden University, you can continue to use the Leiden University Libraries (UBL) throughout your life.

If we want tax evasion to become a thing of the past then there has to be more balance in how tax advisers are educated, according to tax professors Jan Vleggeert and Jan van de Streek.

After an terrorist attack, tough talk often follows. However, this is not the case with prime minister Arden in New-Zealand, says Jeanine de Roy van Zuijdewijn, researcher at the Institute of Security and Global Affairs to the NOS.

In an interview on the website of the NWO, Sabine Luning, Marjo de Theije and Esther van de Camp talk about the gold miners they met in various African and South American countries and they come to new insights.

Op maandag 1 april 2024 stierf onze leermeester, vriend en gewaardeerd collega Dr. Alexander Hendrik de Groot (Sander).

Binnen de Faculteit der Sociale Wetenschappen (FSW) vinden op 1 april 2026 twee wisselingen van de wacht plaats. Shelley van der Veek wordt de nieuwe directeur onderwijs van het Instituut Pedagogische Wetenschappen. Carlijn Bergwerff, afzwaaiend directeur onderwijs van het instituut, verhuist naar het…

The new Middle Eastern Library (MEL) will bring together the UBL's own Middle Eastern collections and the collections of the library of The Netherlands Institute for the Near East (NINO), which has been part of the Leiden University Libraries since 1st January 2018.

De plannen van het kabinet-Schoof om een langstudeerboete zorgt voor veel ophef. Promovendus Joris van de Riet schreef een opinieartikel erover voor Trouw. Zijn argument is dat een langstudeerboete desastreuze gevolgen kan hebben voor studentenverenigingen.

From 24 March 2021, Professor Luuk van Middelaar will deliver four public lectures on 'Geopolitical Europe: Acts and words' at the Collège de France in Paris, on the invitation of the Chairholder on International Institutional Law, Professor Samantha Besson.

A new chapter has been added to the ongoing discussion on Islamic schools in the Netherlands. Dutch television programme ‘Nieuwsuur’ and Dutch newspaper NRC conducted research into approximately 50 Islamic educational institutions which do not take part in the conventional Dutch educational system.…

As a PhD candidate you can declare costs that are related to the graduation formalities.

Wereldwijd worden veel samenwerkingsverbanden met Rusland stopgezet vanwege de oorlog in Oekraïne. Hoe zit dat met de ruimtevaart, waar de Russen ook een groot aandeel in hebben?

In Dutch magazine De Psycholoog, Anne-Laura van Harmelen talks about the impact traumatic experiences, especially for those who are growing up.

This liber amicorum is a tribute to Prof. dr. ir. Hans H. de Iongh, associate professsor at the Institute of Environmental Sciences (CML) of Leiden University and guest professor at the University of Antwerp, on the occasion of his retirement on 27 October 2016.

The Dutch Tax Authorities leaked information about an international tax audit to Uber. In addition, they ‘obstructed and delayed’ an investigation by other EU Member States, says the International Consortium of Investigative Journalists (ICIJ) based on internal documents from the tech company.

Digitalisering ondermijnt de democratische rechtsstaat en verschuift macht van parlementen naar Silicon Valley, waarschuwt Reijer Passchier, hoogleraar digitalisering en beginselen van de democratische rechtstaat (OU) en docent staatsrecht in Leiden, in een podcast van de Publieke Ruimte.

Jeanine de Roy van Zuijdewijn teaches the masterclass terrorism 2018 together with Edwin Bakker. Read the interview here.

On 22 November 2018, Teico Sikkema defended his thesis 'Beginsel en begrip van verdeling'. The doctoral research was supervised by Prof. mr. W.G. Huijgen and Prof. dr. F. Sonneveldt.

Voor het universitaire thema ‘Vertrouwen ten tijde van polarisatie’ slaan Leidse en Haagse onderzoekers de handen ineen. Op vrijdagmiddag 5 juni wordt het thema afgetrapt in Den Haag en komen collega’s samen om te verkennen en te ontmoeten.

Het Internationaal Strafhof (ICC) in Den Haag bestaat sinds 2002, met als kerntaak het vervolgen van personen die verdacht worden van genocide, misdaden tegen de menselijkheid en oorlogsmisdaden. Wat zijn we opgeschoten met bijna twintig jaar ICC? Promovenda Marieke Wierda onderzocht de impact van het…

In het jaar voor overlijden door zelfdoding zag een groot deel van de mensen een zorgprofessional. Het optreden van zorgprofessionals is van cruciaal belang om het aantal zelfdodingen in Nederland te verminderen. Daartoe moet de kwaliteit van zorg beter, in het bijzonder voor jongeren, jongvolwassenen…

‘Huis van het Boek/Museum Meermanno in The Hague exhibits book bindings by leading Dutch Art-Nouveau artists from the period 1890-1910. The exhibition will be open from March 22 to June 23 2019. The title of the exhibition is De Bijzondere Band: Art Nouveau-boeken van Dijsselhof, Lion Cachet en Nieu…

Political scientist Maurits de Jongh (Leiden University/Sciences Po) argues that political liberalism is self-defeating as a framework of justification for liberal conceptions of justice. He explores how the framework's self-imposed criterion of acceptability in the eyes of all reasonable citizens leads…

Paisaje, cerámicas e interacciones

This research aims to address the relationship between cinema and political thought in Latin America, in order to question a limited understanding of cinema politics, which has dominated the field of study since the middle of the last century, and to propose a different one that we will call politics…

Is the quality of the current supervision and enforcement by the government such that companies that work with large quantities of hazardous substances are brought into compliance with legislation and regulations?

Die Aufführungspraxis italienischer Instrumentalmusik in der Auseinandersetzung mit Vokalmusik und Text: Quellen und moderne Umsetzung

Why is there not just one single global law for cases of defamation in cross-border communication mediums such as the internet? Which courts are to be called on in such cases? And is it permissible to hold an intermediary instead of a content provider liable?

Iconografía, epigrafía e historia en los monumentos arqueológicos

Inaugural lecture

Lecture

Jacques J. M. van Gent (8 June 1932 - 26 March 2021) was director of Leiden University Library from 1983 to 1993. He was librarian in a time of transition and, as director, was able to benefit from the new library building on the Witte Singel. Van Gent was a very different kind of manager from his predecessor,…

The Chola Plates, currently in the possession of Leiden University, will be returned to India. This has been decided by the Executive Board. The restitution of this heritage follows the advice of the (national) Colonial Collections Committee.

Benjamin Fogarty-Valenzuela published the article 'Pedagogies of Prohibition: Time, Education, and the War on Drugs in Rio de Janeiro’s Zona Norte' in Cultural Anthropology 37. The article’s three sections focus on three forms of temporal control—busyness, punctuality, and rhythm—and each demonstrates…

In nearly every Dutch primary and secondary school classroom, at least one child is bullied. The common perception is that the most popular child in the class is often the bully, while less popular children are more likely to be bullied. Is this image accurate? Bullying researcher Mitch van Geel knows…