The Department of Child Law collaborated on a study on missing children in the European Union for the European Commission. The outcomes of the study aim to help to improve the mechanisms involved when children are missing in EU Member States.

This dissertation approaches collections of Andean mummies in European national and university museums as the focus to understand the relationship between objects, documents, and the practice of collecting in the period from 1850 to 1930. Over 200 mummies, kept by 18 different museums in Western European…

This handbook is aimed at a wide readership interested in developing an understanding of the political, economic, and social complexity of Eastern Europe. It covers Central Europe, the Baltic republics, South Eastern Europe, and the Western Balkans, as well as all the countries of the former Soviet…

How do chemical contaminants traverse and affect terrestrial biodiversity and ecosystems?

The project seeks to develop an eco-design framework for single-use medical devices and packaging

Impressions by Wouter Baas and Caroline Schep

The expansion of European powers overseas brought Europeans into contact and conflict with the inhabitants of Africa, Asia, and the Americas. Historians of colonialism and post-colonial scholars have long argued that this encounter was crucial for the formation of European identity, which originated…

On 25 March 2021 this online seminar will be held from 10.15-12.00 at Örebro Universitet in Sweden. Jannemieke Ouwerkerk, Professor of European Criminal law at the Institute of Criminal Law and Criminology at Leiden University, will be one of the speakers at this seminar. Information about registration…

Dr Madalina Busuioc has completed a study for the European Parliament titled

Collaboration within Europe is currently at a low ebb. This is threatening to undermine our freedom and the rights that are anchored in the European legal order, says Piet Hein Donner, Vice-President of the Council of State and Cleveringa professor at Leiden University for 2015. His lecture on 26 November…

On 20 June 2025, Melanie Fink presented her research on ‘Robo Swarms and Polygraphs: The Future of European Border Management and its Human Costs’ at the Research Workshop on ‘Migration law at the intersection of international, EU and domestic law: institutional structures and the protection of human…

On 30 January 2024, the Maastricht Centre for European Law, in collaboration with the Globalization and Law Network at Maastricht University Faculty of Law, hosted a seminar featuring Simona Demková from the Europa Institute of Leiden University.

Labour law is constantly changing. Concurrently, the laws dealing with workers address fundamental issues which are invariably of major significance and value. The research carried out at the Department of Labour Law and Social Security focusses on both the (constant) changes in labour law and social…

Almost a hundred students and researchers can study in Leiden or go from Leiden to another university abroad as part of an exchange programme. Fourteen exchange projects have been awarded a subsidy from the EU's Erasmus+ International Credit Mobility programme.

Since Russia’s invasion of Ukraine in February 2022, the European Union (EU) and its Member States have adopted wide-ranging legal and political measures to support Ukraine in its struggle.

This research project is funded by a subsidy from Instituut Gak.

This thesis comprises four closely related interpretative studies and set out to answer the compound question: ‘How do teachers interpret their classroom interactions in terms of their pupils’ best interest?’

This book offers a historical and historiographical analysis of the Spanish asiento de negros, a contract between the Spanish Monarchy and private parties to introduce specific number of enslaved Africans to Spanish America.

On Monday 4 December 2023, the GTGC Seed Grant project with Glenn Aguilar Hernandez, Elena Bondarouk, Arjan de Koning, Antonella Maiello, and Daniela Vicherat Mattar presented their reseach 'Flaws in the flow. Investigating gaps in the governance of European textile waste export'.

The 7th Pan-European Conference on the European Union hosted from 5 until 7 June 2014 by the Campus The Hague was a success.

The European Research council (ERC) was founded ten years ago today. The ERC is an important agency for research funding, including to Leiden University.

The P.J. Cosijn Research Fellowship is an initiative to give promising Research MA students of Leiden University with an interest in Anglo-Saxon Studies the opportunity to conduct research on Old English language and literature. The Cosijn Fellowships are part of the ERC-funded project ‘Early Medieval…

Global climate change is manifest by local-scale changes in precipitation and temperature patterns, including the frequency of extreme weather events (EWEs). EWEs are associated with a myriad range of adverse environmental and societal consequences, including negative impacts to agriculture and food…

Brexit has been a kind of shock therapy for the EU and has eventually led to more appreciation for European cooperation. That is what Professor Luuk van Middelaar claimed on 30 November at the conference ‘Brexit and the future of the European Union’ which marked the 60th anniversary of the Europa Institute…

In December 2024, the book Redressing Fundamental Rights Violations by the EU: The Promise of the ‘Complete System of Remedies', edited by Melanie Fink, was published fully open access with Cambridge University Press. The EU prides itself on having created a legal system that puts the individual at…

Vincent Delhomme delivered a keynote speech on the topic of food affordability at the European Parliament in Strasbourg, on 22 January 2025. The event focused on achieving a balanced food system that is sustainable, healthy, and affordable.

On 8 and 9 May Jorrit Rijpma, Associate Professor at the Europa Institute, participated in the workshop on a comprehensive feasibility study on an ASEAN common visa in Kuala Lumpur.

Moritz Jesse, Associate Professor of EU Law at the Europa Institute, has published his book, “The Civic Citizens of Europe: The Legal Potential for Immigrant Integration in the EU, Belgium, Germany, and the United Kingdom”.

Leiden scientists will be working on the development of a camera for the European Extremely Large Telescope that is currently under construction. On 28 September the Netherlands Research School for Astronomy signed an agreement with the European Southern Observatory.

What are the institutional dynamics of the adoption of internal market legislation?

Leiden2022 is a 365-day science festival for everyone who has a sense of curiosity. Scientists from Leiden University will be making a major contribution. On 10 November, Leiden2022 presented the programme for the coming year, when Leiden will be European City of Science.

It's a no-brainer: of the candidates that you can vote for on 23 May, 14 studied at Leiden University. We asked four of them about their motivation and ambitions. In this article we interview Samira Rafaela, alumna of Public Administration, and Caspar Rutten, who is studying Law.

If it were up to Ursula von der Leyen, a positive opinion on Ukraine's application for membership would be forthcoming this Friday, 17 June.