Because we cannot directly ask babies about what they know or what they are thinking about, we must find smart and baby-friendly ways to figure it out! Below you can read about the different methods that we typically use in our studies.

This article traces the evolution of interpretations of international law and international cyber norms on responsible state behaviour in cyberspace by reassessing five major – and allegedly state-led – cyber operations: Stuxnet 2010; Belgacom 2013-2014, the Ukrainian power grid 2015, the US presidential…

Memory, Imagination, and Mimetics in Contemporary Composition and Historical Performance

La Grande Roche is one of the rare archaeological sites that preserved a long sequence of deposits formed at the time of contact between late Neandertals and early Homo sapiens.

A cautious response to a crisis or terrorist act avoids the creation of a culture of fear. This is another way to reduce our vulnerability to terrorism.

Knowing how to resolve global problems is one thing, but how do you make sure that it actually happens? That’s the real challenge, because there are powerful movements everywhere that want to reconstruct the walls of nation states. In an attempt to resolve this issue, Leiden researchers are experimenting…

You can get various forms of support for you active learning ambitions. Have you already reflected on your teaching practice and have a clear idea of your goals? Your first point of contact should then be your ICTO Coordinator & ICLON. Do you want to join the network of others involved in the topic?…

Gorlaeus Building, Einsteinweg 55, 2333 CC, Leiden

This project asks how individuals and society dealt with personal memories of the Dutch Revolt: narrating, writing, explaining, understanding, and coming to terms with what happened by first and following generations.

This research delves into a region of space known as the interstellar medium (ISM), which is essentially the area between the stars filled with gas and dust.

Kamerlingh Onnes Building, Steenschuur 25, 2311 ES, Leiden

Promotores: S.F. Portegies Zwart, E. M. Rossi

In Humanity’s End As A New Beginning, Emeritus Professor Mineke Schipper reflects on myths about ‘the end’.

Leiden University and the Dutch Royal Family maintain ties that go back to 1575, when William of Orange founded the University. Many members of the Royal Family have studied in Leiden and several have received an honorary doctorate.

Are you considering starting with the Master’s programme Population Health Management? Please feel free to contact us if you have any questions!

Tuna Kalaycı, ed. Archaeologies of Roads. 2023.

From William Shakespeare to Marilynne Robinson, A Literary History of Reconciliation is the first study to examine representations of interpersonal reconciliation in work of literature across a long-term period, from the early seventeenth century to the present day, focusing on how these representations…

On 26 November 1940 Rudolph Pabus Cleveringa (1894-1980) gave his now famous protest speech.

The Indonesian Experience after the Fall of Suharto

A publication on the location of financial losses and the validity of jurisdiction clauses after the CJEU’s Kolassa v Barclays Bank and Profit Investment v Ossi judgments.

Wout Broekema highlights how organisations not only learn from crises but also forget, losing crucial knowledge and practices over time.

Museums and collections are often frontpage news nowadays. The collections stored and curated in museums, universities and private institutions are no longer seen as 'neutral' entities to be enjoyed without political connotations.

In this opinion article published in World Development, the authors present five research and policy priorities. While it is clear that ‘pluriversal’ designs need to guide the way forward (Kothari et al 2019), defining a set of key pillars can provide direction and purpose across this pluriversality.…

Oude UB, Rapenburg 70, 2311 EZ, Leiden

From deepfakes and disinformation to killer robots, surgical robots and AI lawmaking: AI (Artificial Intelligence) is changing our world. That raises the question whether this requires some form of regulation. At eLaw, the Center for Law and Digital Technologies at Leiden University, prof. Bart Custers…

On the 23rd of June Arianna Sacco successfully defended a doctoral thesis and graduated.

In this article, the authors explore the concept of recurrent events, particularly focusing on the Eurovision Song Contest.

This section contains an overview of our Alumni, the career prospect beyond the PhD and "Alumni in the picture" where we give you a few examples of the careers of some of our alumni after receiving their doctorate degree.

FSW building, Wassenaarseweg 52, 2333 AK, Leiden

Promotor: W. T. F. den Hollander, F. H. J. Redig

How do authorities and citizens construct meaning in the aftermath of jihadist terrorist attacks through the use of frames, rituals, and symbols. What does this reveal about the communicative impact of terrorism?

The research connected to this topic is related to E-health.

Lipsius, Cleveringaplaats 1, 2311 BD, Leiden

Yi-Wen Cheng defended her thesis on 28 May 2015

Spectroscopic studies on fluorescent single molecules in organic condensed matter does not only provide information about the molecule itself, but also its near environment. By suppression of phonon-induced broadening of spectral lines through cooling to low temperatures, small changes in the spectral…

Despite the value of technology integration for educational equity and quality being emphasized by numerous studies, many gaps exist about how technology integration can be approached in policy plans, implemented in pedagogical practices, and embraced by teachers, students, and parents.

On 14 November 2019, Luis Fiallos Pazmino defended his thesis 'Legal Perspectives on the Cross Border Operations of Unmanned Aircraft Systems'. The doctoral research was supervised by Prof. P.M.J. Mendes de Leon and Prof. E.C.P.D.C. De Brabandere.

Wijnhaven, Turfmarkt 99, 2511 DP, The Hague

Promotor: Prof.dr. M.L. van Hecke

Wijayanto defended his thesis on 17 January 2019

Empirical Legal Studies in Leiden focused on building an interdisciplinary community of legal scholars and social scientists who collaboratively explore legal questions on the intersection of law and behaviour using a variety of methods.

Enhancing social inclusion through developing methods and analytical tools for understanding and reasoning about such phenomena based on sensor data.

The Uses of Justice in Global Perspective, 1600–1900 presents a new perspective on the uses of justice between 1600 and 1900 and confronts prevailing Eurocentric historiography in its examination of how people of this period made use of the law.

Political protest is often at least partially about the question of legitimacy. How can we distinguish whether a regime is legitimate, or merely purports to be so?

LIAS faculty teach and carry out thesis supervision in many programs.

Join the OSCL community to share your experience and learn more from others at Leiden University

This report examines the questions

In the IEG you study such core themes as: decision making in multi-level governance systems; the transfer of sovereignty and policies to international organisations; and the effects of supranational policies on national governments’ ability to tackle domestic problems, among other issues.

The fifth edition of the Owada Chair Symposium, that was held in Leiden on 14 and 15 October 2025, highlighted the law and politics of international criminal justice.