How did slaves in the eighteenth century manage to empower themselves and their kin, and why did this become all the more difficult in the nineteenth century?

This lecture will be hosted on Thursday, 12 February 2026 at 6:00 pm.

In their vision trajectory, the Office for the Senior Civil Service (in Dutch: Bureau Algemene Bestuursdienst) communicated its plan to renew its vision on public leadership. Over the course of 2021, the Leiden Leadership Centre contributed as a scientific partner to the substantiation of this visio…

This dissertation concerns the role of analogy in Kant’s “Critique of the Teleological Power of Judgment”, especially the role of analogy for the formation of the concept of a natural end (Naturzweck). A ‘natural end’ is a ‘regulative concept’ of the reflective power of judgment, that is, a heuristic…

The Faculty of Archaeology of Leiden University ran an excavation project in Northern Syria, at Tell Hammam al Turkman, some 80 km north of Raqqa. The Faculty of Archaeology and the Netherlands Organisation for Scientific Research N.W.O. finance the undertaking, which is directed by dr Diederik J.W.…

This project aims at studying the social media reception of African publications as covered by the most important “altmetric” sources.

NTER-SECTION is a peer-reviewed, open-access journal focusing on contributions from junior archaeological researchers at Leiden University. The journal offers an accessible platform for the publication of individual research by undergraduate and graduate students. The Editorial Board consists of PhD…

Context and contents of the Izcatqui manuscript in the Royal Tropical Institute, Amsterdam

The use of N fertilizers has increased worldwide in the past century. While this increased input of N has increased food productivity, it has also contributed to decreases in biodiversity, soil quality and environmental health, including increases in greenhouse gas emissions.

As a PhD, there are many ways to participate in the academic life of the Institute and the University. We strongly encourage you to do this, as it will greatly enrich your PhD period. LUCAS has a vibrant PhD community, which organizes several initiatives. All PhDs are warmly invited to join, either…

Investigating domestic crafts and subsistence activities through experiments and material analysis

The RISIS project aims at creating a distributed research infrastructure to support and advance science and innovation studies. This will give the field a strong scientific push forward, and at the same time, provide a radically improved evidence base for research and innovation policies, for research…

Responsible Research and Innovation (RRI) implies that societal actors (researchers, citizens, policy makers, business, third sector organisations, etc.) work together during the whole research and innovation process in order to better align both the process and its outcomes with the values, needs and…

The Focal Area Engagement & Inclusion at CWTS aims to create a more diverse, inclusive and engaging science ecosystem.

Het Empower your PhD-project is een universiteitsbreed project, geïnitieerd vanuit de Faculteit der Sociale Wetenschappen (FSW)

This project is opening up the possibility of systematically studying research teams from a broad perspective, by developing specific bibliometric methodologies able to identify active collaborative research teams in Africa. Based on the extensive experience of CWTS and CREST, this project represents…

Who is funding African science? How are different African and international funders interacting and contributing to develop scientific research in the continent? Are there potential inadvertent synergies among research funders that can be identified? These and similar questions are at the heart of this…

U-Multirank is an alternative approach to international ranking of higher education institutions (HEIs) worldwide. This analytical tool is user-driven and multi-dimensional by design. The current version (2016/2017) includes 1 600 HEIs. The ranking system compares the relative performance of HEIs (mostly…

This team ensures that all Una Europa activities at Leiden University and LUMC run smoothly, and provides support to colleagues directly involved in Una Europa initiatives.

Almost 100 billion tons of CO₂ could be pulled out of the atmosphere by the end of the century. That is, if high-income countries switch to a plant-based diet. The double carbon profit of returning farmland to its natural state would equal about 14 years’ worth of agricultural emissions, researchers…

This project, commissioned by DG Research and Innovation, aims to provide information for policies that lead to the creation and improvement of the conditions which will allow researchers and European industries to safely master the properties of nanomaterials and to innovate with nanotechnology.

The aim of this study is to further develop the Open Science Monitor, which started as a pilot study.

PathOS aims to contribute to a better understanding and measurement of Open Science impacts and their causal mechanisms. This is pivotal in order to develop effective OS policy in the EU (European Union). It will do so by collecting concrete evidence of OS effects, by studying the pathways of OS practices,…

In this consortium CWTS (Leiden University) collaborates with two Swedish SMEs: Monocl AB and Recorded Future AB. Monocl AB delivers intuitive analysis software to Life Sciences professionals in support of strategic decisions and improvement of business performance. Recorded Future AB is an organization…

Security and Legitimacy is one of the three organisational clusters of the Institute of Political Science.

Leiden archaeologists investigate how people in the past impacted their environment. Together with scientists, environmental scientists, and humanities experts, they use this information to draw conclusions about the present – and show what we can learn from it for the future.

Exponential population growth and rapid urbanisation are prompting the development of gigantic African metropolises that must be supplied with resources such as food, water and energy. This creates economic opportunities, drives migration and presents political challenges. Researchers from Leiden combine…

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On Thursday 9 September, the mayor of Leiden officially launched a unique ten-year research project in the polder near Oud Ade. During a festive opening in the countryside, he and all the parties involved ceremoniously planted the first trees. Because one thing is certain: the traditional grass landscape…

The CADS Asia Research Cluster extends the legacy of the Institute’s Asia focus into the future, as an important hub in international networks on the study of Asia and through active engagement with colleagues in Asia. Within the Institute the Asia Research Cluster offers a platform for anthropologists…

By comparing the archaeological evidence at Sedgeford and other sites located on both English and Continental coastal zones, what evidence is there for a shared maritime culture between these North Sea communities? Also if evidence is found, can we reveal to some extent a separate coastal identity to…

This part of the research programme is carried out by Prof. Dr. René Cappers. It focusses on the continuities and changes in the use of plants at Late Neolithic Tell Sabi Abyad, as well as on their implications as proxy evidence for the climate change c. 6200 BC. Parallel to the design of the other…

How did Angkor interact with regional urban centers? How did the settlement system impact the society's agricultural system and regional resilience?

Food waste is a defining inefficiency of the modern food system, with profound implications for resource use, climate change, and circular economy transitions. This dissertation examines food waste through two complementary lenses: the prevention of avoidable food waste and the valorization of unavoidable…

Isotopic insights on human diet from the later stone age to Neolithic in Northwest Africa, Morocco

Global Challenges is the research programme of the Leiden Institute of Cultural Anthropology and Development Sociology.

Plastics have become an integral part of modern society due to their versatility and durability.

The research at the Living lab attracts a great deal of press attention. Please find below a small selection of the many news reports that have been published. Also take a look at the Zembla programme about the Living Lab.

This thesis investigates the application of deep learning techniques in image analysis across various domains, focusing on four main themes: feature extraction, classification, segmentation, and integration, demonstrating the transformative potential of these technologies.

Human impact and plant subsistence in Dutch wetlands during the Late Mesolithic and Early and Middle Neolithic (5500-3400 cal BC)

Promotors: Prof.dr. G.R. de Snoo, Prof.dr. H. Leirs (Univ. Antwerpen), Co-promotor: H.H. de Iongh

One of the key objectives of The Europe Hub is to bring together scholars and students with a joint interest in the European Union. To this end, The Europe Hub regularly organises events such as conferences, roundtables, lectures and book launches.