The Dutch Advisory Committee on Public International Law has, on its own initiative, provided advice to the Dutch government regarding the duty of third states to prevent genocide under the Genocide Convention. The Committe's advice addresses the legal uncertainty in political and societal debates about…

How did people in the latter part of the Late Bronze Age organize themselves in order to be able to erect massive structures such as tholos tombs, citadels and how did they interact with these materials and circumstances while constructing? What impact did such a changing landscape have on their day-to-day…

Learn all about the rich history of navigation, from ancient Greece to Europe’s Gallileo Programme, in the course ‘Navigation through the Ages’. This course is the second MOOC of Space Awareness and is aimed at teachers; registration is now open.

China is conducting joint military exercises this week with Cambodia, Laos, Malaysia, Thailand, and Vietnam. In doing so, it is seeking to strengthen military ties with the ASEAN Member States amidst growing US presence in the region.

This series of seminars convenes researchers based in North America and Europe in order to inspire and further establish reflections about race, race-thinking, and racialization among scholars of late Antiquity and the Middle Ages. The first seminar will be held on Monday, October 19, at 12:00 EDT by…

Plant architecture has distinct forms in different plant species, but also within a species the finalarchitecture of a plant is determined by its gradual development and changes therein induced by environmental conditions during the plant’s life cycle.

The excavation of three Bronze Age barrows and surrounding landscape at Apeldoorn-Wieselseweg

Following an investigation into plagiarism, Erasmus University Rotterdam has declared the master’s thesis of Dutch State Secretary for Long-term and Social Care, Vicky Maeijer, invalid. Wim Voermans, Professor of Constitutional Law, spoke to Dutch newspaper ‘Trouw’ about the matter.

The overlapping of intergovernmental organizations sharing Member States is one of the key challenges for achieving effective regional integration.

On 7 and 8 July 2016 the T.M.C. Asser Instituut and the Law Faculty of Leiden University organise a two-day symposium on EPPO.

A growing amount of literature is being devoted to interrogating gendered dynamics in both violent extremism and terrorism, contributing to the integration of international and feminist security. This includes how such dynamics can shape differences in the motivations and participation of women and…

This report concerns itself with terrorist technical innovation, particularly with regards to terrorists’ incorporation of emerging technologies into their practices. More specifically, it investigates, through the elaboration of a theoretical learning framework, how terrorist groups can adopt the practices…

In this article, Ben de Jong, research fellow at the Institute of Security and Global Affairs, examines the relationship between double agents and their handlers.

On 5 June, Maarten Aalbers defended the thesis 'The balancing of general interests in EU State Aid Law: blurred lines between the prohibition and the compatibility of aid'. The doctoral research was supervised by Pieter van Cleynenbreugel and Stefaan van den Bogaert.

When we are around four years old we suddenly start to understand that other people think and that their view of the world is often different from our own. Researchers in Leiden and Leipzig have explored how that works. Publication in Nature Communications on 21 March.

The Hague Diplomacy Podcast aims at bringing the themes of the journal's research off the page, and onto the discussion table. Each episode will feature a guest who will share their insights and personal experience within their practice of or research on diplomacy. Available via SoundCloud, Apple Podcasts…

Nanodiamonds and charcoal in Dutch soil provide no evidence for the alleged impact of a meteorite at the end of the last Ice Age. This is the conclusion of a research done by Utrecht University in collaboration with Leiden University and the University of Groningen.

On 26 June 2025, Melanie Fink delivered a presentation titled 'Good Administration in the Age of AI: Explanation Rights and Human Oversight under EU Law' at the European Ombudsman.

From 26 to 30 June 2017 a summer course on Europeanisation of administrative law in the Member States of the European Union will be held by the Department of Constitutional and Administrative Law.

This month Johan Christensen, assistant professor at the Institute of Public Administration, published his new book: ‘The Power of Economists within the State’. The book explores four countries, Denmark, Ireland, Norway and New Zealand and analyses why these similarly sized and wealthy countries have…

This project aims to identify which aspects of exploring a novel environment produce beneficial effects on memory. The effects of novelty will be investigated across the lifespan, including children, adolescents and older adults.

The bottom-up development of post-Roman northwestern Europe

Our ability to learn and control movements is essential for engaging in goal-directed behaviour. From buttoning your shirt and driving a car, to cooking dinner and brushing your teeth -- our actions in daily life rely on this ability.

Volume 20 contains eight articles based on research of the Faculty of Archaeology, Leiden University.

Simona Demková from the Europa Institute participated as a key speaker at the annual Digital Constitutionalism Academy on 27 and 28 March 2025. The Academy brought together leading scholars and practitioners to explore the evolving intersection of digital innovation, fundamental rights, and regulatory…

Thanks to fanatical lobbying various groups of citizens and traders had a lot of influence on the initial success of the Dutch colony in Brazil. This is the conclusion of Leiden PhD candidate Joris van den Tol, who defended his thesis on 20 March.

Residents of Bonaire believe the Dutch government should do more to combat climate change on their island. On their behalf, Greenpeace is taking the Dutch State to court. External PhD candidate Sjoerd Lopik discussed the case on Dutch Radio 1.

De discussie over de sluiting van illegale schietbanen van Defensie, als gevolg van de stikstofwetgeving is ingewikkeld en omvat diverse juridische aspecten. Armin Cuyvers, hoogleraar Europeesrecht, bespreekt de zaak in BNR-Nieuwsradio.

About the book

In November 2022, at the request of the House of Representatives, the Dutch Government established the State Commission on the Rule of Law.

The mycorrhizal symbiosis is among the most widespread species interactions on Earth⁠. This thesis focuses on orchid mycorrhiza, a unique mycorrhizal type that has caught scientists’ attention for centuries⁠.

Political scientist Nicolas Blarel (Leiden University) analsyses how non-state actors can (directly or directly) attempt to provoke conditions for a crisis between state actors that have nuclear capabilities. He argues that there is an urgent but complicated and understudied task to understand and manage…

January 1st 2017, Bastiaan Steffens will be taking up the Graduate Teaching Assistance PhD position at the Archaeology and Ancient History department at Leicester University.

Promotor: Prof.dr. E. R. Eliel, Co-Promotor: M.J.A. de Dood

Individual traders should be at the forefront of the study of early modern world trade rather than institutions such as states and companies, argues Professor of Global Economic Networks Cátia Antunes. Inaugural lecture on 9 June.

A retrospective impact assessment of human and environmental resource usage in Late Bronze Age Mycenaean Monumental Architecture, Greece

Researchers from the LUMC and the Universities of Granada and Almería have found a gut bacterium that is associated with stronger muscles in people and mice. Their findings, published in the journal Gut, hint at the potential for new probiotics to support muscle strength and healthy ageing.

How can we understand the encounter between communities active in sustainability initiatives and governmental agents at the multiple institutional layers in the Netherlands?

State Secretary Sander Dekker of Education, Culture and Science received the national research agenda Nature4Life on 31 January. This research agenda, in which Leiden University is involved, focuses on research on biodiversity, ecology and evolution.

The aim of this workshop is to open up the discussion of textual communities in Late Antiquity and the early Middle Ages, by offering a platform for PhD students from all over the world and from various disciplines to present their own research and discuss it with others. Deadline: April 23.

Decentralized plug and play systems for energy production are the future picture of our society. Artificial photosynthetic systems are used for this purpose.