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 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.

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?’

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'.

Visiting the beating heart of European politics, namely, the European Council in Brussels, is a great opportunity for students. I was lucky to be able to join the visit, organised by the Career Service and Alumni Office last Friday. The primary purpose of the visit was to familiarize us with the work…

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.

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…

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…

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”.

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

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.

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.

Members of our research team give different types of presentations and lectures.

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.

What should the EU do to support Ukraine, Belarus and Moldova? How can the European Union adapt its policies towards these countries in a very difficult and challenging geopolitical context? Ten years after its inception, the European Neighbourhood Policy (ENP) has fallen short of accomplishing its…

On the 2nd of June 2021, students of the LL.M. European Law program and staff of the Europa Institute got together to ‘celebrate’ the end of teaching in the academic year 2020/2021.

On May 24 Jorrit Rijpma took part in a panel discussion on “national states, common borders: future of border management in Europe, taking place in Warsaw, Poland.

The Institute of Criminal Law and Criminology conducts extensive research on imprisonment. Sending a person to prison is the most severe form of punishment that can be applied in the criminal justice systems of European countries. In most countries, the number of prisoners has risen in recent decades.…

The Leiden University Old English ColloQuest is a digital, dynamic edition of an Old English text that adapts to each different learner to offer an appropriate level of challenge. The nature and number of glosses (translation aids) on the text adjust for each individual user based on the user’s answers…

This dissertation is about Bayesian learning from data. How can humans and computers learn from data?

This study explores public leaders’ organizational learning orientation in the wake of a crisis. More precisely, we study the association between public leaders’ public service motivation and their learning orientation (instrumental versus political).

On Thursday 11 April, at its annual meeting in Turin, the European Law Faculties Association awarded its dissertation prize to Vestert Borger, assistant professor in European Law at the Europa Institute of Leiden University. The Association, founded in 1995, has as its aim to increase the quality of…

On Tuesday 19 January 2016, dr. Nelleke Koffeman LL.M, assistant professor at the Europa Instituut of Leiden Law School, appeared as a guest on the radio show ‘Juridische Zaken’ (‘Legal Affairs’) for the Dutch national radio channel BNR Nieuwsradio to discuss the proposal by the Alliance of Liberals…

On 1 and 2 December 2022, Vincent Delhomme and Carina van Os participated (Europe Institute) in the workshop ‘The European Health Union - Setup, challenges and global outlook’, held at the Max Planck Institute for Comparative Public Law and International Law in Heidelberg. Vincent had the opportunity…

On Friday 12 September 2025, the Opening Ceremony of the European Law LL.M. programme took place in the Lorentz lecture hall at Leiden Law School. Following Dr Barbora Budinska’s and Professor Armin Cuyvers’s warm words of welcome for the incoming students, Dr Darinka Piqani presented two student pr…