The Department of Archaeological Sciences seeks to achieve the highest standards of excellence in science-driven education and archaeological research across the globe and across all periods.

The external tissues of plants and animals are colonized by microbial communities termed microbiota. When organisms are exposed to environmental pollutants, these substances will therefore encounter microbiota at the exposure interface.

Article by Dennis Broeders in the Journal of Cyber Policy on the (im)possibilities of addressing election interference and the public core of the internet in the UN GGE and OEWG.

The Centre for Science and Technology Studies (CWTS) is a research institute at Leiden University working on improving how science is practiced and governed and how it serves society.

The Centre for Indigenous America Studies (CIAS) at Leiden University is designed to coordinate and promote the teaching and research of Indigenous languages, literatures, cultures and cultural heritage. Our aim is to contribute to an increased acknowledgement, recognition and understanding of Indigenous…

This research paper seeks to examine the nature of the nexus between right-wing extremism and the military by surveying five potential consequences (i.e., problem areas) arising from the presence of right-wing extremists within the armed forces of twelve Western countries.

Freshwater and brackish water ecosystems are arguably the most vulnerable ecosystems on earth, due to concentrated human developments in and around them. The Pontocaspian (PC) region located at the border of Europe and Asia contains a variety of brackish water ecosystems and unique inhabitants, known…

LLInC supports innovative and high-quality education, within Leiden University and in partnership with academic and social organisations.

Living labs make it possible for citizens to participate in research for sustainable development of their environment. This way citizens, together with scientists and stakeholders, create local conditions for food production, healthy environment, and biodiversity.

In our research and education, we focus on the following topics:

Subproject of the ERC project 'Challenging the Liberal World Order from Within: The Invisible History of the United Nations and the Global South'.

Bioarchaeology covers the study of all biological remains from archaeological sites.

DIGIFOOD is a transnational research project that investigates how data governance can support equitable and sustainable digital food systems. Around the world, digital technologies are transforming agriculture. Sensors in soil, satellites in space, and mobile phones in farmers’ hands are generating…

Museum Studies looks at museum practices from archaeological, historical and anthropological perspectives.

In 2025, GTGC co-organised with the City of The Hague and the Hague Humanity Hub a Just Peace Festival, a vibrant platform on the pressing global challenges of peace with justice. The festival involved a wide range of different activities, including dialogues, exhibitions, performances, film evenings,…

This thesis describes the role of pollution, specifically neonicotinoid insecticides, as an actor of the ongoing biodiversity decline.

The Global Transformations and Governance Challenges Programme hosts a range of international academic gatherings, including the GTGC Conference, the GIG-ARTS Conference in 2024, and the first edition of the Just Peace Festival in 2025.

This is special issue of the journal Language & Communication. The papers of this issue delve into the multifaceted realm of (non)belonging.

Facilitating direct citizen participation through online channels is considered as an opportunity for including harder to reach groups in participation.

This Think20 (T20) policy brief recommends the introduction of a

Psychoeducational Assessment, Intervention and Rehabilitation (PAIR) publishes high quality articles on theoretical and empirical research regarding psychological and psychoeducational assessment, intervention, and rehabilitation in all areas related to cognitive and socio-emotional development.

This focal area is concerned with studying and promoting openness of research information, for instance information about the outputs and activities of researchers and research teams. It also focuses on the use of open research information to support evaluation and policy making in science.

Louis Verreth and Jeroen De Keyser recently published a critical edition of Francesco Filelfo’s Latin translation of the Rhetorica ad Alexandrum (Edizioni dell'Orso).

This article by Malte Reimann and Antonio Cerella explores how politics and medicine have become deeply intertwined, using the thought of Roberto Esposito to reimagine this relationship through the lens of an affirmative biopolitics.

The Brazilian economy has long been defined by its enormous potential. Over the past 30 years, some of this has at last been realised. Latin America’s largest economy has rapidly risen in global importance while poverty at home has declined. Yet, despite periods of progress, Brazil remains prone to…

The project seeks to explore the interplay of valuation and inequalities in science, using the interdisciplinary and planet-critical field of forest research as empirical case. It examines which/whose knowledge is recognised on what grounds, and how social dimensions like gender and geographical location…

Dr. Gruni published an article on the impact on sustainable development in the EU Common Commercial Policy of recent Opinion 2/15 CJEU on the Global Trade and Customs Journal.

Can behaviour in an online economic game be understood as a representation of radicalisation propensity?

On the 9th of April, Manolis Fragkiadakis successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Manolis on this achievement!

Gender sidestreaming? Analysing gender mainstreaming in national militaries and international peacekeeping

This doctoral thesis focuses on Paisiello's partimenti and how to approach their realization and performance.

The basic concern that informs every part of the research is in wonder of what happens when sound happens as an aesthetic force. The emphasis of each query lies on the active occasion, the radical empiricism, the moment of encounter, how the sonic event comes to pass as aesthetic force.

Promotores: Prof.dr. J.N. Kok, Prof.dr. M.R.V. Chaudron, Co-Promotor: P. van der Putten

Didactics

Our course programme consists of three courses targeted at professional users of scientometrics, including librarians, policy officers, and research managers at universities, funding agencies, and other research organizations. For PhD students CWTS offers the annual CWTS Scientometrics Summer Scho…

Jiska Ogier studied notarial law, which wasn’t always easy because she went to lectures in a wheelchair. As a student she pushed to make society accessible. And with her law degree and lived experience she has now made this her work. ‘You can achieve a lot with creative solutions.’

Debate

Both the international perspective and the Dutch language and culture are deeply embedded in Leiden University’s identity.

How can we promote social cohesion in a society that is culturally and religiously diverse?

A safe haven for students, more bicultural staff and more powers for diversity officers. In a national expert meeting at Campus The Hague, administrators, diversity officers, students and staff discussed urgently needed measures.

In our collective journey to bridge social, economic, and cultural inequality in society, we must al play a part, says Wilco van Dijk. Unfortunately, notes Carolien Rieffe, minority groups are often not included in this 'we.' This became a focal point of discussion during the fifth Psychology Connected…

Exploring logging's real impact: Insights from Anthropologist Tessa Minter in the Solomon Islands.

The Leiden Leadership Programme (LLP) employs experts in the field of leadership. They equip LLP students with the necessary leadership knowledge, insights and skills to increase their social impact.

In the specialisation School Psychology, part of the Master in Psychology, you will learn how to create positive learning environments to support talent development and potential for learning as well as practical clinical skills for all students, regardless of their intellectual or mental states.

The Laboratory for Human Osteoarchaeology specialises in the macroscopic and microscopic analysis of human remains. We use cutting edge scientific approaches to address archaeological, historical, and anthropological research questions. In addition to paleopathological, histological, and 3D scanning…

The sustainable business law research group is dedicated to researching the complex relationship between business activities and sustainability. It strives to develop legal solutions that contribute to a more ethical, just, ecologically responsible and socially inclusive society. Our aim is to develop…

The VVI seeks to develop and disseminate socio-legal knowledge and theory regarding the interaction between law, governance and society. More specifically, the Institute studies the emergence, functioning, and evolution of legal institutions.