Health workers have always sought ways to fight disease in vulnerable groups in the population. It is now clear that such research also benefits more prosperous countries. African worm infections and innovative thermometers have shown Leiden researchers how to fight diseases of affluence and keep health…

Does the political context (e.g., democracy vs. authoritarianism) influence what makes people perceive authorities as legitimate?

Research in the Natural Computing and Optimization cluster covers theoretical foundations, the development of new algorithms, and interdisciplinary applications of natural computing methods.

Together with researchers from over the world, the ENIGMA-Anxiety Working Group endeavors to unravel the neurobiology of anxiety disorders and related constructs.

The Board of Governors of Leiden University has confirmed the appointment of Professor André Gerrits (Institute for History, currently in the field of Russian Politics and History) to the field of International Studies and Global Politics, commencing October 1st 2015.

Between 1993 and 2000 the Faculty of Archaeology had a formal cooperation with the Service Régional de l’Archéologie de la Guadeloupe, Direction Regional des Affaires Culturelles (DRAC) and the then director André Delpuech. During that period surveys and excavations were carried out at a number of s…

The research group Organizational & Entrepreneurial Behavior investigates the behavior of individuals and groups who start, work in, or lead organizations, in order to inform organizational practice. By focusing on the behavior of (groups of) employees, entrepreneurs and leaders, the main levels of…

To organise an Academy Colloquium on 'The New Authoritarianism: Russia and China in Comparative Perspective', in cooperation with André Gerrits.

Leiden archaeologists have identified a number of bone fragments that were excavated in Germany two years ago. The fragments are from a sabre-toothed cat and appear to be parts of the skull of a prehistoric feline that is over 300,000 years old.

Computers are capable of making incredibly accurate predictions on the basis of machine learning. In other words, these computers can learn without intervention once they have been pre-programmed by humans. At LIACS, we explore and push the borders of what a revolutionary new generation of algorithms…

The place of European states and institutions in world politics is the core focus of this pillar. Research on this theme concerns European actors’ ability to promote peace, security and justice in their neighbourhood and to shape the future of global governance by translating its economic size into…

Former PhD, Bachelor and Master students of the Van Exter Lab

The following maps show institutional collaborations and with indigenous communities (scroll down).

Leiden University’s Master of International Civil and Commercial Law (L.L.M.) examines the interrelated layers of hard law, soft law, and relevant case law.

For the first time in the Netherlands this summer: the Space Studies Programme - an international summer university for those who aspire to a space career. In parallel: the Sizzling Summer of Space, which is a public programme for both young and old.

On Wednesday 11 October 2017 the African Studies Centre Leiden and the Van Vollenhoven Institute for Law, Governance and Society are organizing a workshop.

After a year of war against Ukraine, professors André Gerrits, Antoaneta Dimitrova and Frans Osinga look back at Russian aggression and Western unity and ahead to the new offensive.

Although it is already certain that Vladimir Putin will win the Russian presidential election on 18 March, it is still significant for him, argues Russian expert André Gerrits. ‘The support of the people reinforces Putin's position of power.’

Recently, some changes have been made to the catalog of Leiden University Library, making more than 1000 digitized codices more accessible than before. The 'Inventory of Western Medieval Manuscripts Held by Leiden University Libraries,' created by manuscript curator André Bouwman, is also now available:…

Op donderdagmiddag 15 mei 2025 organiseert Universitaire Bibliotheken Leiden het symposium ‘De Middeleeuwen als inspiratiebron’. Aanleiding voor dit symposium is de publicatie van het rijk geïllustreerde publieksboek 'Schatten op schrift, 50 manuscripten uit middeleeuws Europa'.

On 11 December 2015, the Grotius Centre for International Legal Studies organized a seminar on

As of 1 May 2025 Dr. Vasiliki Kosta has been appointed member of the standing Committee for Freedom of Scientific Practice (Commissie voor Vrijheid van Wetenschapsbeoefening - CVW) of the Royal Netherlands Academy of Arts and Sciences (KNAW).

According to a study conducted by multiple research institutes, governments and law enforcements should widen the scope of their focus to right-winged terrorists such as Andres Breivik. The Guardian issued an in-depth analysis of their work last week.

JUSTREMIT is an ERC-funded project that brings together political theory, ethnography, and security studies in an interdisciplinary study of remittances and global justice.

In the Criminal Justice research programme, (criminal) law researchers and social scientists – many of whom are criminologists – collaborate on various projects. The research programme focuses on the content and form of decisions that could be, should be and are taken in by actors in the criminal justice…

Globalization, migration, technological innovation and climate change pose challenges to citizens in European countries. These challenges test the limits of cross-national and cross-generational solidarities, touching upon the very foundations of governance and society. This research program aims at…

A team of researchers from Leiden Institute of Advanced Computer Science (LIACS) recently hosted a big international conference (EMO 2023). At the conference, computer scientists discussed algorithms that are important in areas such as drug discovery, industrial production planning, and sustainable…

Vasiliki Kosta has been appointed as a member of the Committee of the Royal Netherlands Academy of Arts and Sciences (KNAW) tasked with writing an advisory report on legal safeguards for academic freedom.

MetaROR, a new open peer review platform, was launched today at the AIMOS 2024 conference in Canberra, Australia. MetaROR is a joint initiative of AIMOS and RoRI. As a core partner in RoRI, CWTS has been involved in the development of the platform with a couple of colleagues and is proud to contribute…

Yannis Kyriakides, PhD student at Academy of Creative and Performing Arts , has received the prestigious International Rostrum for Composers award, in the category over 30 years, for his cello, video and electronics piece: Words and Song Without Words.

Dr. Eduard Fosch-Villaronga, Marie Skłodowska-Curie Postdoctoral Researcher at eLaw, received a personal visiting researcher grant from the Research Council of Norway to spend five weeks visiting the University of Oslo.

In the beginning of December 2016 PhD candidate Catarina Guzzo Falci was awarded a scholarship for a collections study by Musée du quai Branly. The Musée du quai Branly has implemented this scholarship programme to document its collections.

The French Astronomical Society SAF (Société Astronomique de France) has awarded its international astronomy prize, the Jules Janssen Prize, to Leiden professor and IAU president Ewine van Dishoeck for her scientific achievements.

In 2021 many of our students and staff won fantastic prizes and were awarded important research grants. This is our traditional review of these successes as the end of one year marks the beginning of another.

On this page you can find information about previous CCLS events.

The Hague Journal of Diplomacy regularly publishes reviews of recent books within the field of diplomacy and global affairs, written in English, Spanish, French, or German.

The Leiden University Institute for History is responsible for the main part of the historical research carried out at Leiden University. The institute has a wide-ranging academic scope.

On 14 November 2025, representatives from several organizations across the publishing reform and research assessment reform communities gathered in Pisa, Italy, for a workshop aimed at identifying and advancing joint actions to strengthen both movements.

On 22–24 October 2025, Leiden University welcomed scholars, policymakers and higher education leaders for the Una Europa Conference on Academic Freedom. Organised by the AFITE project team and supported by Una Europa Seed Funding 2024, the three-day programme examined current pressures on academic freedom…

The certificate award ceremony of the Honours College took place in the Hooglandse Church in Leiden on Tuesday 21 November. During the ceremony, two students shared their experiences with honours education while Vice-Rector Hester Bijl addressed the students.