This volume, featuring sixteen contributions from leading Roman historians and archaeologists, sheds new light on approaches to the economic history of urban craftsmen and traders in the Roman world, with a particular emphasis on the imperial period.

A more efficient solar panel sounds great. But what if these new panels consume more toxic materials, or their production consumes a lot of energy? Leiden environmental scientists, together with colleagues from the Fraunhofer ISE, address this multifaceted question in a new publication in the prestigious…

Forgotten Lineages explores the paths through which generations of formally enslaved and their descendants gradually forgot their past of enslavement under Dutch and British imperial rule and became local subjects in Sri Lanka and South Africa. It explores why and how forgetting rather than memory became…

This project investigates generational dialogues about the legacies and memories of labour, student and communist movements in the Arab world. The research focuses in particular on video and installation art by young makers born in the 1980s that address the generation of their parents and the events…

This monograph by dr. Kim Beerden compares Greek divination to divinatory practices in Neo-Assyrian Mesopotamia and Republican Rome.

Japan's Occupation of Java in the Second World War draws upon written and oral Japanese, Indonesian, Dutch and English-language sources to narrate the Japanese occupation of Java as a transnational intersection between two complex Asian societies, placing this narrative in a larger wartime context of…

Promotor: Prof.dr. J.N. Kok, Co-Promotor: W.A. Kosters

The Environmental Sciences Research Prize 2012 has been awarded to CML researcher David Font Vivanco by the Environmental Scientists Association of Catalonia.

On Thursday 7 May, Jolanda van der Vliet obtained her PhD based on her dissertation 'The International Protection of Environmental Refugees. A human rights-based, security and State responsibility approach.' The defence was held online. Jolanda worked on her dissertation under the supervision of the…

Life cycle assessment (LCA) reveals the total environmental impact of products or production processes, and EU rules are going to make this even more important.

The Faculty of Archaeology's own home-grown journal Inter-Section has released a new volume. Inter-Section offers students and PhD candidates the unique chance to publish in a peer-reviewed journal. The new volume focuses on the materials that shape our world.

We are living in an information era where the amount of image and video data increases exponentially.

The Leiden Ancient History specialization concentrates on the study of the economies, societies and cultures of the large empires of the Graeco-Roman world, starting with the empires of Alexander the Great and his successors.

National parochialism is the tendency to cooperate more with ingroup than outgroup members. Angelo Romano, Matthias Sutter, James Liu, Toshio Yamagishi & Daniel Balliet studied national parochialism across different nations and conclude in their publication in Nature Communications that it is a ubiquitous…

Research aims: Identification of key genes involved in programming the cellular architecture of A. niger & Genetic engineering of A. niger in order to improve its secretory capacities and rheological behavior under industrial fermentation conditions.

This project incorporates spatiality into the discussion of medieval demography, allowing for a more nuanced view on medieval town populations. It establishes a maximum population count for towns for periods prior to 1400 and provides a means to compare the ranking of towns using size and density instead…

The book ‘Forty years of Leiden Environmental Science’ is available in digital format (PDF). It relates to the history of the Institute of Environmental Sciences (CML).

After the 2022 conference on Courts as an Arena for Societal Change in Leiden, COI researchers collaborated with conference attendees to publish a special issue of the European Law Journal covering diverse aspects of the evolving role of courts in addressing environmental and climate issues.

Organisations such as the EU are of enormous benefit to the member states, but the inhabitants of the member states are often unaware of this. Leiden researchers investigate whether international organisations such as the EU or ASEAN are able to influence global politics.

Material Crossovers

This volume investigates how urban growth and prosperity transformed the cities of the Roman Mediterranean in the last centuries BCE and the first centuries CE, integrating debates about Roman urban space with discourse on Roman urban history.

This volume offers a multidisciplinary view of cutting-edge research on bilingualism in Spanish and Portuguese-speaking regions, with the aim of building a bridge between sub-fields and approaches that often find themselves isolated from one another.

Until the 1990s, the only known planets were those in our Solar System. Three decades later, several thousand exoplanets have been discovered orbiting stars other than the Sun, and substantial efforts have been made to explore these strange new worlds through spectroscopic analyses of their atmosphe…

Located in the small Kingdom of Commagene at the upper Euphrates, the late Hellenistic monument of Nemrud Daǧ (c. 50 BC) has been undeservedly neglected by scholars

Generations of Leiden students and academics have done archaeological research into the early medieval history of Oegstgeest. This makes this old settlement one of the best-documented sites from that era. In a new book, Leiden researchers take stock.

With a single sample of water or soil, researches can analyse the DNA of everything that is living in that environment. During her research, PhD candidate Beilun Zhao discovered a way to analyse not only the kind of species, but also the age of the species in a water sample. The method showed its first…

This research project from Leiden University looks at the opportunities and threats that flow from the existence of institutional and normative diversity in the area of fundamental rights for the effective protection of those rights in a pluralist world.

Improving environmental risk assessment of pesticides in surface waters

Lecture, Global Questions Seminar

The IBL represents the core of modern biological research at Leiden and we interact closely with the other life science Partner Institutes in the faculty:

On 7 March, Carlos Roos (lecturer, philosopher, researcher) gave a talk about popular music at Utrecht University, organized by the education committee of Study Association Hucbald (Musicology at Utrecht University).

The environment also benefits when people follow national nutritional guidelines, Paul Behrens demonstrated in research published in PNAS. The publication attracted media attention both at home and internationally.

Exchanges between different cultures and institutions of learning have taken place for centuries, but it was only in the twentieth century that such efforts evolved into formal programs that received focused attention from nation-states, empires and international organizations.

Environmental organisation Greenpeace wants to see a drastic reduction in nitrogen deposition on the Netherlands’ most vulnerable nature conservation areas. This would extend beyond the nitrogen targets that the Dutch government is currently striving to meet. Rogier Kegge, Assistant Professor of Constitutional…

Is our musicality unique? To find out, the Bird Singalong Project brings together singing parrots from all over the world. Do you have a parrot that sings or whistles along to songs and would you like to help us? Sing up now!

Sarah Giest and Annemarie Samuels, both Assistant Professors at Leiden University, researched the quality and coverage of the data being collected for policiymakers to be used, specifically pertaining to minority groups.

At the entrance of the Van Steenis building you may now visit an exhibition on material culture. Unexpectedly, it does not display pottery or tools, but building materials. And recent ones at that! Check out the exhibition on Legos lost at sea, conceived and assembled by PhD candidate Maia Casna. ‘These…

At one time, the railway from Kimberley to Kambove in Southern Africa symbolised prosperity and progress. Today, the exhausted mining towns along its route are marked by decay and pollution. Professor Jan-Bart Gewald has been awarded an NWO L grant to investigate the long-term global consequences.

What was the stringed instrument known in medieval and early Renaissance Italy as “cetra”?

Security and safety challenges are at the top of the list of the most pressing issues of contemporary society.

Pre-university students at the course Popular Music: Selling Rebellion have released a podcast series on Spotify!

Until recently, the role of external information processing in intelligence has rarely been investigated quantitatively or experimentally. A group of researchers from Erasmus University Rotterdam, Leiden University, GGZ Rivierduinen, and University of Edinburgh measured in a new way how and when people…