Globalisation is shaping the world in which we live. In the BA in International Studies, you have the opportunity to study one of eight world regions within the context of global interactions. At the same time, you will learn a key language of your chosen region and acquire skills that will prove to…

From Great-Britain to the United States and from Australia to South Africa: people around the whole world speak and write English. In Leiden you will broaden your knowledge of the English language and the rich Literature and culture of the global English world on academic level.

The Urban Studies bachelor’s programme is based on two learning trajectories. One is dedicated to knowledge related to urban issues, while the other focuses on a wide range of practical and academic skills.

Cities play an increasingly important role in today's global challenges: climate change, inequality, safety and health. Our Urban Studies programme gives you the opportunity to become a problem solver, equipping you to develop real-life answers to today’s and tomorrow’s urban challenges.

The motto of the Institute for History is: ‘Global questions, local sources.’ Its researchers use local sources to find answers to major historical questions. Without historical analysis, it is impossible to understand and explain the issues in society today. Leiden itself has a rich history, with big…

This research aims to fully recall these lost sound aspects of the eighteenth century and is, therefore, a study that passionately advocates the diversity of musical experience in the context of historical performance practice.

This is an Erasmus+ International Credit Mobility project of the Faculty of Science with the University of Pretoria.

Making choices is part of life. You make larger or smaller choices in everything you do, and you progress from one choice/decision to the next. All decision-making processes involve three aspects: making a choice, experiencing that choice and reflecting on it.

Lecture

On 6 December 2021, the University Council approved the Supplementary Implementation Plan for Quality Agreements, a follow-up to the original Leiden University Implementation Plan for Quality Agreements from December 2018.

On 2 September 2021, Gert Jan Geertjes defended his thesis 'Staatsrecht en conventie in Nederland en het Verenigd Koninkrijk'. The doctoral research was supervised by Prof. L.F.M. Verhey and Prof. W.J.M. Voermans.

Sometimes students may qualify for course exemption, because they already possess the skills and knowledge that a compulsory course teaches.

This historical study argues that the Mandaean religion originated under Sasanid rule in the fifth century, not earlier as has been widely accepted. It analyzes primary sources in Syriac, Mandaic, and Arabic to clarify the early history of Mandaeism.

The spindle-assembly checkpoint (SAC) is a safety mechanism which secures accurate chromosome segregation during mitosis.

Fokelien Kootstra defended her thesis on 23 April 2019

In his historical analysis of upland societies of the Zomia massif, James Scott (2009) emphasizes how the modern state strives to control and “make taxable” all of its subjects. For Tania Murray Li (2014), the development of neoliberal markets is the primary driver of change, as she shows based on long-term…

Promotor: K.J. Batenburg

How does the commodification and re-appreciation of the contiguous uplands of Northeast India, Bangladesh and Burma/Myanmar transform the relationship between these states and their upland citizens?

On 9 May 2018, Roy van Keulen defended his doctoral thesis 'Digital Force: Life, Liberty & Livelihood in the Information Age'. The doctoral research was supervised by Prof. dr. A. Ellian.

Agrobacterium tumefaciens, a gram-negative plant pathogen belonging to the family Rhizobiaceae, is the causative agent of crown gall disease, which can affect many plant species including agronomically important ones.

On the 16th of February 2022 Mr. Yunus Sulistyono successfully defended a doctoral thesis and graduated.

In this study, the formation of the Tocharian subjunctive is described, its use and meaning are analysed and its origins are investigated.

In this thesis, the research focuses on the properties of dark matter and dark matter haloes and how they connect with the galaxies we can observe in the Universe.

De lichtheid van literatuur: Engagement in de multiculturele samenleving (The Lightness of Literature: Engagement in the Multicultural Society) is a plea for the social relevance of literature. The book delves into an age-old debate about literature and social engagement, which has recently been reinvigorated…

This is the first full-scale reference grammar of Classical Greek in English in a century.

Muslim scholars work in a long and rich tradition of knowledge-production in their own culture.

Promotor: S.J. Edixhoven, Co-promotor: R.S. de Jong

This paper investigates possible convergence of issue salience of terrorism among citizens within the European Union for ten jihadist attacks in the period 2015–2017 using Eurobarometer survey data.

The four possible segments A, T, C and G that link together to form DNA molecules, and with their ordering encode genetic information, are not only different in name, but also in their physical and chemical properties.

Innovation plays an essential role in firms' competitiveness and long-term success. It varies from different types, ranging from run-of-the-mill innovation that brings incremental changes to existing technologies to radical innovation that breaks from existing trajectories.

The article 'Standardising care of the dying: An ethnographic analysis of the Liverpool Care Pathway in England and the Netherlands' by Erica Borgstrom and Natashe Lemos Dekker is published in Sociology of Health & Illness.

Arco Timmermans, professor by special appointment in Public Affairs at the Institute of Public Administration, is co-editor of this book focused on comparing engagements in policy advisory systems.

What happens if a Member State decides to withdraw from the European Union? The “Brexit Charts” aim to provide information on the withdrawal procedure under Art. 50 TEU, on the legal consequences of leaving the EU and on the future relationship of the withdrawing state with the European Union.

The future of Europe as a community of democratic states is deeply uncertain. The European Union, founded to promote ‘ever closer’ integration, aims nominally for peaceful, prosperous cooperation. But this ideal has been battered by a series of bruising crises, and now by war.

On May 3rd, Varun de Castro Arrazola succesfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Varun on this great result.

On this section of the website you can find more information about the Old Observatory and the current astronomy research institute.

This new handbook by Frits Naerebout and Henk Singor places the history of the Greeks and Romans within the larger context of the contemporary Eurasian world.

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,…

The debate in Europe about digital sovereignty, technological sovereignty, data sovereignty and strategic autonomy has been building over recent years at both the EU level and the level of individual Member States. The different concepts – and their diverse interpretations – cover the sovereignty concerns…

Reactions and reaction times in cognitive tasks.

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

On the 16th of February, Yunus Sulistyono successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Yunus on this achievement!

Promotor: Prof.dr. I.A.G. Snellen, C.U. Keller

This work has described synthetic strategies towards well-defined structures resembling capsular polysaccharide (CPS) fragments, CPS mimics, teichoic acid (TA) fragments as well as a third-generation ring-closing tandem metathesis (RCM) linker to better exploit the potential of automated synthesis.

On 28 January 2021, Dorine Verheij defended her thesis 'Credit rating agency liability in Europe'. THe doctoral research was supervised by Prof. M. Haentjens and Prof. A.G. Castermans.

On the 12th of September, Lorenzo Nespoli successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Lorenzo on this achievement!

This book argues that the combined literary, epigraphic and archaeological evidence supports the theory that early-imperial Italy had about six million inhabitants.

In this thesis, we study systems of electrons in which strong correlations give rise to emergent exotic physics.