Fake news is becoming more and more prominent now that social media allow for an endless stream of unfiltered content to reach us. But what happens if we can no longer distinguish the truth from the lie?

In this thesis chemical and physical processes in the ice mantles on interstellar dust grains are studied.

This dissertation is part of a broader research project that revolves around unraveling the evolution of balanced lethal systems.

Leiden University is realising a new and sustainable building with state of the art research and educational facilities for the Faculty of Science: the Gorlaeus Building. The new sustainable building will stimulate academic cooperation and knowledge sharing.

How did the life course, with all its biological, social and cultural aspects, influence the lives, writings, and art of the inhabitants of early medieval England?

In our teaching, we give all our students the opportunity to learn about sustainability themes and issues, where possible ones that tie in with the content of their degree programme.

Promotores: Bas Edixhoven, Guy Henniart

Find out how to apply for Classics at Leiden University by following our step-by step guide.

Find out how to apply for Classics (research) at Leiden University by following our step-by step guide.

Find out how to apply for Museum Studies at Leiden University by following our step-by step guide.

Find out how to apply for Philosophical Perspectives on Politics and the Economy at Leiden University by following our step-by-step guide.

Find out how to apply for History of Inequality and Power at Leiden University by following our step-by step guide.

Find out how to apply for Philosophy of Law, Governance and Politics at Leiden University by following our step-by-step guide.

Find out how to apply for Modern European Philosophy at Leiden University by following our step-by-step guide.

The partial University Teaching Qualification (Basis Kwalificatie Onderwijs, BKO) certificate provides recognition that a PhD candidate has gained knowledge and experience as a teacher.

Study information

Find out how to apply for Art History at Leiden University by following our step-by step guide.

Do you want to apply for this master’s programme at Leiden University? Find out how to apply for your programme by following the step-by step guide in the application and admission section.

Do you want to apply for the bachelor’s programme Urban Studies at Leiden University? Find out how to apply by following the step-by step guide below.

The interdisciplinary AI & Society minor of Leiden University brings together students and lecturers from a wide range of disciplines. Together they look at the impact of AI on society.

Completing your Master’s in Biology gives you an internationally recognised degree which you can follow up with a PhD track. With your acquainted skills, you’re a much requested professional in and outside research.

Find out how to apply for Philosophy of Humanities at Leiden University by following our step-by-step guide.

The IEG specialisation integrates professionally-oriented activities in the curriculum to prepare students for the job market. For example a 2-day Challenge is organised each year during which you meet potential employers, learn practical skills and solve a policy, organisational or ethical issue.

How did the slave peculium function in the socio-legal context of the Roman Empire?

Choosing a study programme is fun and exciting, but it’s not always easy. Your choice of study is a major decision; after all, it is about your future. At the same time, it’s good to remember that this choice will not determine the rest of your life.

Find out how to apply for Modern Languages at Leiden University by following our step-by step guide.

Find out how to apply for Comparative Criminal Justice (MSc) at Leiden University by following our step-by-step guide.

Do you want to apply for the international bachelor’s programme in Cultural Anthropology and Development Sociology at Leiden University? Find out how to apply by following the step-by-step guide below.

Do you want to apply for the bachelor’s programme Data Science & Artifical Intelligence at Leiden University? Find out how to apply by following the step-by step guide below.

The Physics and High-Tech Innovation specialisation gives you a unique combination of expertise in advanced mathematics with experience in industry, putting you in the perfect position to follow a career in R&D, hardware or software engineering, and technology-driven project management. 

Do you want to apply for the bachelor’s programme Science for Sustainable Societies at Leiden University? Find out how to apply by following the step-by step guide below.

Find out how to apply for Beyond Borders: Global and European History at Leiden University by following our step-by step guide.

With the rising tide of scholarly and societal interest in the history and legacy of colonialism and slavery, this collection offers a much-needed diachronic analysis of the cultural representations of the lives and afterlives of those subjected to slavery and indenture. It focuses on the history of…

Congratulations, we are pleased you’ve chosen to follow one of Leiden University’s bachelor’s programmes and we look forward to receiving your application!

Bringing together a globally representative team of scholars, this Handbook provides a comprehensive overview of comparative syntax, the study of universal and variable properties of the structure of building blocks in natural language.

Do you want to apply for this master’s programme at Leiden University? Find out how to apply for your programme by following the step-by step guide in the application and admission section.

Do you want to apply for this master’s programme at Leiden University? Find out how to apply for your programme by following the step-by step guide in the application and admission section.

2026

As a PhD candidate, you are expected to follow certain courses and training programmes in the context of your training as a researcher. The courses and training programmes will help you conduct your research, write your dissertation, develop your career, and gain self-insight. The LACDR PhD training…

Central to Nuranisa’s PhD project is the cultural diplomacy practiced by the Javanese courts of central Java (Surakarta, Yogyakarta, Pakualaman and Mangkunegaran) in response to the increasing Dutch colonial power in the 19th and early 20th century. The Javanese sultanates were incorporated into the…

How can the concept of Critical Making be expanded into a general approach that ties the critical methodology of artistic research, and the established concepts of artistic autonomy, together with contemporary creative-technological development?

People are less willing to give up an interest when in a negotiation situation than when they can do it of their own free will, as Leiden University psychologist Eric van Dijk discovered. Knowledge of this kind can be used by policy makers, for instance, to motivate people to adopt certain desirable…

Being a supervisor is a demanding job. With these golden rules in mind, you'll do just fine. You can keep reading below, or you can download the PDF in which you find a visual representation on the rules.

Being a supervisor is a demanding job. With these golden rules in mind, you'll do just fine. You can keep reading below, or download the PDF on the right for a visual representation.

Apps that can precisely identify shards, coins or heel bones: archaeology has embraced artificial intelligence. Alex Brandsen is working on a search engine that scans vast quantities of text from an archaeological viewpoint.

The infectious diseases malaria and tuberculosis are responsible for 2.1 million deaths every year. Leiden researchers are currently testing a new tuberculosis vaccine.

Leiden University's interdisciplinary research programme SAILS funds young interdisciplinary scientists working at the intersection of AI and other fields. How do these researchers experience the work?

Serious forms of anxiety concerning other people’s opinions can hinder teenagers at school in social interactions or carrying out tasks. Psychologist Anne Miers is looking for ways to reduce this so-called ‘social anxiety’.