Professor Ariadne Schmidt and Associate Professor Arie van Steensel (University of Groningen) have produced A Companion to Medieval and Early Modern Leiden, the first English-language history of Leiden. Mayor Peter Heijkoop received the first copy.

This timely and engaging book examines the rise of populism across the globe. Combining insights from linguistics, argumentation theory, rhetoric, legal theory and political theory it offers a fully integrated characterization of the form and content of populist discourse.

Unmanned aerial vehicles (UAVs), often referred to as drones, have become easy and inexpensive to buy, and it is generally expected that the use of drones by private individuals, businesses and public authorities will increase tremendously in the coming years. This raises questions as to what is technologically…

Announcement of the publication of Vamping the Stage: Female Voices of Asian Modernities, the first book-length study of women, modernity, and popular music in Asia (University of Hawai'i Press, 2017).

Global Challenges is the research programme of the Leiden Institute of Cultural Anthropology and Development Sociology.

Fundamental research in the ALgebra, Geometry And Number Theory

EuDEco (Modelling the European Data Economy) is a Coordination & Support Action (CSA) receiving funding from the European Union’s Horizon 2020 programme.

This paper contributes on an increasing body of work on radicalisation. It specifically focuses on what distinguishes individuals whose behavioural radicalisation includes involvement in terrorist violence from those whose behavioural radicalisation does not.

Source: Nat Biotechnol, Volume 32, Issue 12, pp. 1213-22 (2014)

Sweetie 2.0 is a research project commissioned by Terre des Hommes on online child sex tourism and criminal law.

This article presents an in-depth evaluation of a specialized reintegration initiative within the Dutch Probation Service focused on individuals convicted or suspected of involvement in terrorism.

Transcutaneous vagus nerve stimulation (tVNS) was tested in chronic worriers. tVNS may reduce spontaneously occurring negative thought intrusions. After a worry induction, there was no longer an effect of tVNS. tVNS did not affect physiological responding to worrying.

Source: Eur J Med Chem, Volume 101, pp. 681-91 (2015)

In recent years, the use of primary data in terrorism research has increased. In order to maximise the benefits of this trend, we want to encourage terrorism scholars to implement open science practices more systematically. This article therefore presents different avenues towards open and reproducible…

Why does one person radicalize to involvement in terrorist violence within a group-based context, while another engages in this form of violence alone?

From deepfakes and disinformation to killer robots, surgical robots and AI lawmaking: AI (Artificial Intelligence) is changing our world. That raises the question whether this requires some form of regulation. At eLaw, the Center for Law and Digital Technologies at Leiden University, prof. Bart Custers…

The book addresses the question “How and why do people become involved in European homegrown jihadism?

In this article, Bart Schuurman and Sarah Louise Carthy conduct further research into the understanding of the causes of terrorism by assessing differences and similarities between left-, right- and jihadist extremists and terrorists. The article draws on the Analysen zum Terrorismus, one of the most…

In this article, Bart Schuurman and Sarah Louise Carthy explore the distinctions between radicalised individuals and the general population

Childhood sexual abuse is a common problem, with approximately one in five girls and one in 13 boys worldwide experiencing some form of sexual abuse before the age of 18. Despite its high prevalence, many individuals remain silent about these experiences, often delaying disclosure for years, with one…

In this publication, the authors explore the reality of accessing and interviewing hard-to-reach populations such as extremists and terrorists

Each year, the Leiden University Student Platform (LUS) presents the Leiden Education Prize.

This article provides an in‐depth assessment of lone actor terrorists’ attack planning and preparation.

Promotor: P. Stevenhagen, Co-promotores: B. de Smit, F. Andreatta

In this thesis we classify the pairs (p,G), where p is a prime number and G is a finite p-group possessing an intense automorphism, i.e. an automorphism that sends each subgroup of G to a G-conjugate, that is non-trivial and whose order is coprime to p.

Promotor: Prof.dr. P. Stevenhagen, Co-promotor: Prof. dr. B. de Smit

Source: Nature Biotechnology, Volume 2014, Issue June (2014)

The Graduate School of Social and Behavioural Sciences has the responsibility for all PhD candidates in the field of social and behavioural sciences. The School's themes are anthropology, education and child studies, political science, psychology and science and technology studies..

Unfolding potential

Exploring cultural production in Europe, Latin America and Africa, the institute’s research programme focuses on the continuous interconnectedness of the Arts and Society in both the textual culture of literature, learning and public debate and the visual culture of art, architecture, film, photography…

European integration is under pressure. At the same time, the notion of a European administrative space is being explicitly voiced. But does a shared idea of the public servant exist in Europe?

The newly established Leiden Jewish Studies Association aims to bring together Leiden scholars working on Judaism. The first annual conference will take place in Leiden on 6 and 7 December. Leiden professors and co-organisers of the LJSA Sarah Cramsey and Jürgen Zangenberg talk about their plans.

Over the last few years, human Rights have become subject of intense debates in historiography. Sam Moyn’s provocative book The Last Utopia (2010) made in particular clear how important it is to investigate precisely which meaning human rights have been given in a particular context. During the research…

Master studies History, Classics, Russian Studies and Dutch Studies have received the label ‘top programme’ in the Keuzegids Masters of March 2018. The study guide bases its results on the opinion of students (through the National Student Survey) and experts (NVAO).

In QS’s World University Rankings of 2016, Leiden University’s History and Linguistics programme rank #19 and #28, respectively. This makes the History programme the best of its kind in the Netherlands, and Linguistics the second best.

In 2018, Megan Griffiths, then a student of the MA North American Studies, won the Theodore Roosevelt American History Award for her master’s thesis ‘Radicals, Conservatives, and the Salem Witchcraft Crisis: Exploiting the Fragile Communities of Colonial New England’.

The Institute for History has a new academic director. Professor of Early Modern History Jeroen Duindam will take on this role from 1 September. ‘You can only do this job properly if you make time for it.’

Call for Papers: Imperial Artefacts. History, Law, and the Looting of Cultural Property

Lecture and Masterclass with Alexandra Sapoznik (King's College London) Connecting economic and environmental histories in the pre-modern world 12 and 13 May 2025, Universiteit van Amsterdam. Deadline for submissions: 29 April 2025, 13:00

The Roosevelt Chair in New Diplomatic History is sponsored by the Roosevelt Institute for American Studies (RIAS) in Middelburg, and the new position further strengthens the connection between the RIAS and Leiden.