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.

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…

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

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.

Is our musicality unique? To find out, the Bird Singalong Project brings together singing parrots from all over the world. Do you have a parrot that sings or whistles along to songs and would you like to help us? Sing up now!

In this article, the authors explore the concept of recurrent events, particularly focusing on the Eurovision Song Contest.

Material Crossovers

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.

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.

On 27 September 2019, Bart Schuurman, Assistant Professor at the Institute of Security and Global Affairs spoke to Dutch regional newspaper 'de Gelderlander' about the decline in attention for jihadism.

Ontwerpers en onderzoekers gaan bij het verzamelen van data vaak uit van mannen als ze mensen bedoelen. Dat is onhandig en onveilig.

This project investigates the transposition of natural historical material, knowledge and vision, between different media (collection, scientific drawing, academic texts, the visual arts and/or literature) – a transmission that happens in the borderline between the traditional, emblematic worldview…

Muhammad Adlin Sila examines the range of ways Bima Muslims constitute their Islamic identities and agencies through rituals and festivals. In response to their surroundings, what it means to be a Muslim is constantly being negotiated.

The Modern Devotion: pone of the most influential religious initiatives in the late medieval Low Countries.

This thesis describes the use of the evolutionary approach in the study of language change, aiming to provide a better insight in the mechanisms that play a role in language change and to validate this approach in the field of language change.

The prehistory of communication metaphors

The World Politics Major at Leiden University College The Hague examines the big ideas and the powerful forces – political, military, economic, social and cultural – that shape the world at every level, from the global to the local and everything in between. Political conflict is a key driver of many…

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.

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.

Er is een nijpend cellen- en personeelstekort in Nederlandse gevangenissen. En dit is niet voor de eerste keer. Miranda Boone, hoogleraar criminologie en vergelijkende penologie, sprak met Trouw over de problematiek: ‘Het aantal gevangenen is het resultaat van beleid.’

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.…

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.

Boudewijn Röell's Olympic medal, an ancient skiff and photo's of memorable rituals. Asopos de Vliet - Princess Beatrix was a member - is celebrating its 55th anniversary with an exhibition in the Oude UB, from 1 November to 26 January.

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.

In tracing intra-site, local and regional craft networks in Late Bronze Age Tiryns (Greece) the project aimed to understand technological changes, (dis)continuities and social practices from the Late Palatial until the Post Palatial periods in Mycenaean Greece.

What did colonial officials and missionaries think they were doing?

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.

Indigenous Latin American artifacts have attracted the interest of Europeans since the earliest moment of contact between Europeans and the Indigenous peoples of the Americas. The ERC-funded BECACO project uses an innovative multidisciplinary framework to investigate the provenance of ethnographic and…

Dancing in style at the University Sport Centre, and cooking together or visiting the cinema. These two initiatives for bringing Dutch and international students together were the winners of the 2016 Van Bergen Prize. The awards were presented at the annual Diversity Symposium at Leiden University on…

1000 Years of World History in 100 Old Maps.

PhD defence

This project investigates how the first generation of Dutch printed books (the incunabula, 1473-1501) affected late medieval spirituality, religious practice and visual culture in the Low Countries.

Erik de Maaker and Radhika Gupta received a Seed Grant to initiate research on how heritage has been and can be mobilised to address climate change governance in Himalayan Asia. This project will address a significant knowledge gap on the potentials and pitfalls of climate governance, with an initial…

We are pleased to invite abstracts for a conference on ‘Advancing Social, Economic, and Cultural Rights in a Polarised, Digitalised, and Unequal World’ to be held at Leiden University on 4 and 5 September 2025, in collaboration with Netherlands Network for Human Rights Researh (NNHRR).

Inaugural lecture

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

In this opinion article published in World Development, the authors present five research and policy priorities. While it is clear that ‘pluriversal’ designs need to guide the way forward (Kothari et al 2019), defining a set of key pillars can provide direction and purpose across this pluriversality.…

In Humanity’s End As A New Beginning, Emeritus Professor Mineke Schipper reflects on myths about ‘the end’.

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…