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.

Political Scientist Katharina Natter (Leiden University) advances theory-building on immigration beyond the liberal state and demonstrates how immigration politics can provide valuable insights into the inner workings of political regimes. Connecting scholarship from comparative politics, international…

Drawing on a broad array of sources, this project examines modern retrievals of Bacon’s idols, thereby testing Justus von Liebig’s intriguing observation, back in 1863, that Bacon’s name lived on mainly in mottos or stereotypical phrases. More importantly, it examines the rhetorical purposes served…

When did the Mali Empire disintegrate? What does the Sunjata heritage demonstrate about the political situation after 1600?

A measured yet theoretically innovative exploration of how Islamophobia and radicalisation intersect and reinforce each other.

Environmental humility is integral to addressing the climate crisis, but humility can also lead to political domination. How can humans relate to nature more humbly without risking domination?

In comparing a selection of 18th-century histories to a representative sample of 19th-century histories of science, this project inquires: Which early modern vices persisted into the 19th century and to what extent were those vices embodied in anecdotes, conveyed through commonplaces, or symbolically…

On 27 May 2021, Hirad Abtahi defended his thesis 'Adjudicating Attacks Targeting Culture'. The doctoral research was supervised by Prof.dr. C. Stahn.

The programme consists of four fields of study which are outlined below.

This article assesses Russian rhetoric toward Ukraine from 2004 to 2019 by analyzing statements by the Russian Ministry of Foreign Affairs.

In what ways can visual art play a vital role in countering the discriminating stigma experienced by transgender communities?

This study investigates the syntax and distribution of the two elliptical phenomena Gapping and Fragments, as well as the movements involved in ellipsis contexts in general.

This project analyzes to what extent hodegetical textbooks relied on each other in warning their readers against vicious habits, how much continuity their catalogs of vice displayed, and to what extent vices that persisted throughout the 18th and 19th centuries were associated with easy-to-remember…

Heritage knowledge that offers insight into identity and cultural diversity.

On 23 February 2022, Cale Davis defended the thesis 'Prosecutorial Discretion in International Criminal Justice'. The doctoral research was supervised by Prof. C. Stahn en Dr. J.C. Powderly.

The project examines the political conflict in the Red River Valley of Louisiana between the majority-black Republican Party and the overwhelmingly white Democratic Party by studying the composition and actions of each party.

On Wednesday 24 September 2025 Marija Šerić successfully defended a doctoral thesis and graduated.

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

If idioms employed in codes of conduct could be as idiosyncratic as examples suggest, then to what extent did early modern language of vice, too, persist in this genre?

Healthcare robots and AI is a project that investigates the legal and regulatory aspects of healthcare robot and Artificial Intelligence (AI) technologies

NimbleAI aims at solutions for ultra-energy efficient and secure neuromorphic sensing and processing at the edge.

We are committed to empowering the continuous development of higher education. With a team of multidisciplinary experts, LLInC supports innovative and high-quality education, within Leiden University and in partnership with academic and social organisations.

Cyber-attacks, privacy-related problems or failures in functioning: many technologies that are used every day have security issues that are solved when the software is already in use. An interdisciplinary project, in which Olga Gadyatskaya, Harry Wijshoff, Alex Uta and Kristian Rietveld from the Leiden…

Simona Demková, Assistant professor at the Europa Institute of Leiden University, publishes her book ‘Automated Decision-Making and Effective Remedies: The New Dynamics in the Protection of EU Fundamental Rights in the Area of Freedom, Security and Justice’.

Eduard Fosch-Villaronga, Marie Skłodowska-Curie Postdoctoral Researcher at eLaw- Center for Law and Digital Technologies, just published a book on Robots, Healthcare, and the Law. Regulating Automation in Personal Care.

Proceedings of the Eighteenth Annual Theoretical Roman Archaeology Conference Amsterdam 2008

Data science offers great opportunities for legal research, according to Simone van der Hof and Bart Custers (eLaw). But at the same time, we have to keep an eye on the unwanted side effects of big data - such as ethnic profiling.

How was the Scholarly Self cultivated in professorial families of the humanities, in German-speaking Europe between 1860 and 1930?

An overview of the courses

The Impact of Mobility and Migration in the Roman Empire assembles a series of papers on key themes in the study of Roman mobility and migration.

C-SIDe project involves a broad selection of associates in solving cybersecurity problems. Security of software systems has emerged as a critical need in our interconnected society. Companies developing software products look for Security-by-Design approaches accommodating security into their software…

There is a growing demand throughout the world for ways to understand and preserve cultural heritage. Heritage has a crucial role to play because it strengthens societies and promotes understanding among cultures. Leiden expertise in the area of heritage spans the whole world.

Subproject of

Diplomatica: A Journal of Diplomacy and Society addresses the broad range of work being done across the social sciences and the humanities that takes diplomacy as its focus of investigation.

This project examines the intriguing relationship between Greek literary criticism and Latin literature in Rome (first centuries BC and AD).

How was the future United Nations Organization promoted to global publics during WW II?

What are the values that Leiden University cherishes? What does the University stand for and what does it consider important?

This book sheds new light on domestic forced migration by examining the experiences of American-born slave migrants from a comparative perspective.