Until recently, the role of external information processing in intelligence has rarely been investigated quantitatively or experimentally. A group of researchers from Erasmus University Rotterdam, Leiden University, GGZ Rivierduinen, and University of Edinburgh measured in a new way how and when people…

The hypothesis of this research is that the municipality used the impressive the Town Hall to enforce its rule and represent its political ideas and make use of sources such as biographies, poems, pamphlets, sermons and governmental documents.

What is the most effective way to eliminate tumour cells? The DNA repair mechanism could play an important role in increasing the effectiveness of chemotherapy in the fight against cancerous cells. If we are to influence this mechanism, we need fundamental knowledge about how the mechanism works.

Astronomers want to understand the Universe, from the Big Bang to the present day, and what the future will hold. In Leiden they focus on two key questions: ‘How did stars and planets originate’ and ‘How were galaxies and black holes formed in the young Universe?’ A new generation of telescopes – just…

For a Union closer to its citizens: social psychological insights into EU-level redistribution and perceived legitimacy.

Exploring the intersection of environmental conservation, indigenous cultural expectations, and human-nonhuman relationships in the Eastern Himalayas. Developing inclusive approaches to ecological preservation through community-centered research.

Simulations of galaxies help researchers understand astronomical observations better. The EAGLE simulation, a large project in which Leiden astronomers play a leading role, shows the evolution of the Universe, from just after the Big Bang to the present day.

This inaugural lecture discusses the question: How to cooperate in the digital era?

The thesis focuses on synthesis strategies in oligosaccharide campaigns, and the influence of protecting groups.

Labbe

Stephen Moore defended his thesis on 26 May 2020.

‘Schiedsgerichte in den Aussenverträgen der EU. Neue Entwicklungen unter Einbezug der institutionellen Verhandlungen Schweiz–EU’, Jusletter 28 May 2018

Promotores: P. Stevenhagen, L. van Geemen (Università degli studi di Milano), Co-Supervisor: Ronald M. van Luijk

The goal of the ANASTASIS project is the analysis and publication of early medieval (Merovingian) cemeteries in the Netherlands (c. 500 – 750 AD).

Everything around us is in motion. Students, the University, technology, society, the labour market and the world. These developments provide an impetus to experiment with new forms of education. This article samples a small selection of the many dozens of innovative educational projects. What is striking…

In her teaching, University Lecturer of Ancient History Liesbeth Claes uses various digital tools. Using that experience and interest she started an innovation project in order to research which digital skills history alumni need on the labour market and how these skills can be implemented in the cu…

This year, Leiden University celebrates its 444th birthday – and when you’re giving a party, you need great music! Neuropsychologist Rebecca Schaefer agrees. She has been fascinated by music since she was a child, and now she studies how music can make us happy, give us energy or calm us down.

Dr. Mikihiro Moriyama was born in Kyoto, Japan in 1960. He first came to Leiden for a year in 1988, and then stayed from 1992 to 1995 and was back again in June 2003 for his PhD. 'I’d never heard of the Sweat Room until I heard about it at a Leiden alumni meeting in Jakarta. When I visited Leiden in…

Festival, We are Science week

Course

'Communal Dining in in the Roman West' explores why the practice of privately sponsored communal dining gained popularity in certain parts of the Western Roman Empire for almost 300 years.

In this article Vanessa Newby discusses how the ANZUS states of United States, Australia, and New Zealand that sit on the fringes of the Asia-Pacific, are increasingly using their armed forces to deliver Humanitarian Aid and Disaster Response (HADR) as a way of engaging with the region.

The revolutionary organizations in Paris and Berlin around 1848.

The leading argument of this doctoral thesis is that Aristotle’s text De Interpretatione is of methodical relevance for present-day philosophical thinking. In the era of science and technology, the status of philosophy has become problematic.

How can theories about modern disinformation help to understand how Roman documentary fictions functioned?

In ancient times, the steppe in the hinterland of Petra (Jordan) was transformed into a green oasis. This project tries to shed insights in the agricultural, water management and societal processes resulting in this transformation. This will be accomplished by practicing an interdisciplinary research…

This project receives funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme under grant agreement No 101054849 (PURANA).

Legibility in the Age of Signs and Machines offers a compelling reflection on what the notion of legibility entails in a machinic world in which any form of cultural expression – from literary texts, films, artworks and museum exhibits to archives, laws, computer programs and algorithms – necessarily…

On 5 September, Elize de Mul defended the thesis 'Digital Döppelgangers: identity in the Culture of Imagination'. The doctoral research was supervised by Simone van der Hof and Esther Keymolen.

On Thursday 27 June 2024 Sigrid van Roode successfully defended a doctoral thesis and graduated.

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One of the key quests in astronomy is to study the growth and evolution of galaxies across cosmic time. Radio observations provide a powerful means of studying the formation of stars and subsequent buildup of distant galaxies, in a way that is unbiased by the presence of dust.

A Companion to Cities in the Greco-Roman World offers in-depth coverage of the most important topics in the study of Greek and Roman urbanism. Bringing together contributions by an international panel of experts, this comprehensive resource addresses traditional topics in the study of ancient cities,…

The Swahili coast has a long-standing history of transoceanic Islamic connections dating back to the 25th century. Yet, print, has changed the world – not only ours. This project unravels unique forms and archives of intellectual history emerging from within South-South connections. In East Africa Indian…

On March 25, the Advanced Masters of Science in International Relations and Diplomacy (MIRD) celebrated the 20th Anniversary of the programme. The celebrations began with the Reconnect event, bringing current students and alumni together, and concluded with the MIRD Gala. Throughout the day, the tight-knit…

From 13 to 15 October, first-year students of the Advanced MSc in International Relations and Diplomacy (MIRD) travelled to Brussels, the heart of the European Union, to visit key EU and UN institutions.

Lecture, China Seminar

Conference

With the What's Next? series we hope to inspire current Media Technology MSc students, show the variety of paths taken after the studies, and bring together alumni. Editions of the series are generally organized around a particular theme by Media Technology MSc students themselves, and followed by social…

From a successful April Fool’s prank and alumni love stories to a fabulous float on 3 Octobe: these were the highlights of our year on our social media channels. Hope you’re following us?

The European Rule of Law Conference 2025, hosted by re:constitution at the Berlin Social Science Center (15-16 September), brought together scholars, practitioners, and civil society to critically examine the challenges facing democracy and the rule of law in Europe and to explore ways of shaping their…

Updated walking instructions, and refreshed texts and questions. After six years, the Leiden math trail has been revamped. From high school students to mathematicians: everyone can walk the route to their heart's content again.

On 6-7 November 2015, four members of the International Humanitarian Law Clinic of the Kalshoven-Gieskes Forum flew to Berlin to attend the 4th Annual Alumni Meeting of one of the clinic’s cooperation partners, the European Center for Constitutional and Human Rights (ECCHR).

Leiden University has launched a new online platform for young researchers. The website helps PhD candidates and postdocs explore their career options outside academia.

The project will investigate the use of Artificial Intelligence in the labour market, and how biases in hiring and promoting processes based on personal characteristics are potentially reproduced with AI-based systems.

During the Dies Natalis for alumni, February 11 2017, the annual university thesis awards ceremony was held. The winner of 2017 is Erik Kroon, of the Faculty of Archaeology. His thesis featured innovative research on changes in the technology of Neolithic ceramics.

Jeffrey Kotyk defended his thesis on 7 September 2017

This subproject of 'From Homo Economicus to Political Animal' analyzes Greek economic thinking in late 5th- and 4th-century philosophical circles.

On 16 June 2020, Andrea Varga defended her thesis 'Establishing State Responsibility in the Absence of Effective Government'. The doctoral research was supervised by Prof. N.J. Schrijver and Prof. F. Baetens (University of Oslo).