On the 28th of January 2019 Beryl ter Haar gave an introductory lecture on EU labour law concerning collective redundancies and working time. Both are core issues of this year's case for the Hugo Sinzheimer Moot Court Competition.

This volume contains the first edition of 66 papyri and ostraca in the collection of the Leiden Papyrological Institute.

On Sunday September 2, the Museu Nacional of Brazil was destroyed by fire. It is estimated that 90 percent of the collection is lost. National Geographic interviewed Brazilian heritage expert Mariana de Campos Françozo about the disaster.

Are you intending to become a student shortly? And are you unsure about what you're going to study? If so, come to the Open Day on 15 October.

On 30-31 October 2025, the University of Coimbra will host the workshop 'Small Communities Facing Danger. Strategies of Solidarity and Resilience Before the Modernity'. Deadline for submission of papers on 31 May.

Recycling of post consumer plastic waste is problematic in that the environmental benefits are questionable and the costs are significant. It would be better to separately collect the most useful parts through the expansion of the deposit system.

Jessica Roitman accepted for the prestigious Huntington-Clark Summer Institute.

The Leiden Summerschool in Languages and Linguistics, including courses in Papyrology, is now open. BA/MA/PhD students are welcome to attend.

On 5 July, Mark Klaassen provided the introduction to the webinar of the Family Reunification Network (FRUN) on Unaccompanied children in the family reunification context.

Pau(la) Chaves Bonilla aka La ChicaScratch is a choreographer, performance artist and queer grassroots organiser born and raised in Colombia and based in The Netherlands, co-founder of the Papaya Kuir collective led by Latinx trans and queer migrants/refugees. On the 1st and 14th of April, Paula Chaves…

Activities of Thalia Hoffman and Basma Hamdy

In February 2023, the International Institute of Air and Space Law and the Kalshoven-Gieskes Forum for International Humanitarian Law organised a seminar on the topic of 'The optimisation of the use of satellite information in the humanitarian domain – Legal and space-related developments' at Leiden…

Corinna Jentzsch and Wouter Veenendaal, two political scientists affiliated with Leiden University’s Institute of Political Science, have been awarded a NWO ‘Veni’-grant. This grant brings them official recognition as ‘young outstanding researchers’, as well as financial support for conducting independent…

Sufyan Al Karaimeh, a guest researcher at the Faculty of Archaeology, is currently involved in the Aerial Archaeology in Jordan (AAJ) Project. Over the past 25 years, the individuals involved in this project have not only compiled an expansive collection of photographs but have also helped discover…

On the 28th of January 2019 Beryl ter Haar gave a guest lecture at Tbilisi State University organised by the European Law School Association (ELSA). The lecture addressed issues of EU fundamental rights, more particularly it was on the freedom to conduct a business versus several labour rights, among…

Have you heard about the book bus project (عربية الحواديت) in Sharqiya? This wonderful initiative encourages children, who don't have easy access to books, to read by spreading books by car. They are also setting up a library!

Russian writer and cardiologist Maxim Osipov will come to the Netherlands for a year to teach in Leiden about Russian literature, his own work and the political situation in Russian.

Global Interactions sponsors a number of research projects of Leiden University researchers.

Marijke Brouwer started as an archaeologist, excavating Iron Age settlements in the Dutch polder regions. Today she is the director of medieval Huis Bergh, one of the largest castles in the Netherlands. How did this unusual career development come about?

Countries that import plastic waste recycle an average of at least 63 percent of it. This is surprising, as we previously believed that the vast majority was incinerated or ended up as litter. This was discovered by PhD candidate Kai Li and his colleagues from the Institute of Environmental Sciences in…

Photographing fluorescent flowers, searching for frogs and shooting tropical cucumbers out of trees: this is only a small part of the course Tropical Biodiversity and Field Methods. For this class, master’s students biology traveled to Malaysian Borneo for two weeks to gain experience in fieldwork.…

In the confrontational ‘House of Misconceptions’, visitors put themselves in another person’s shoes and have to justify their existence. The performance is the result of a unique collaboration between the Liquid Society art collective and Professor of Law and Society Maartje van der Woude and her st…

To stay secure, the transatlantic community must take on emerging and disruptive technologies together.

The 2022 Nobel Prize in Literature has been awarded to French writer Annie Ernaux (1940). In an explanation, the Swedish Academy praises Ernaux 'for the courage and clinical acuity with which she uncovers the roots, estrangements and collective restraints of personal memory'.

Ustadh Mau Digital Archive project (UMADA) is among the UCLA Library 29 international cultural preservation projects supported by the Modern Endagered Archive Program (Cohort 3). From the 3rd up to the 5th of October, a digitization training workshop took place on Lamu island, on the so-called northern…

Comparing gazes between Turin and other cities in the global north.

The Greek diasporic queer poet Constantine P. Cavafy (1863-1933) has been recognized as a central figure in world literature and literary modernism. On December 9th, a symposium around his work will take place at Leiden University Libraries. This will be combined with the launch of Maria Boletsi's book…

While the U.S. reconsiders its global commitments, Japan remains a stable partner, having cultivated the roots of its bilateral partnerships in the Indo-Pacific region and expanded its commitment to global health.

A better understanding of Morocco and the Arab world is crucial for international relations and for Dutch society. This was the key message of Minister of Education, Culture and Science Jet Bussemaker and Ahmed Aboutaleb, Mayor of Rotterdam, at the opening of the renewed Netherlands Institute in Morocco…

The postwar Liberal International Order faces grave challenges today mostly in the form of geopolitical competitions among great powers and exclusionary identity politics unfolding across different countries.

This blogpost is a reflection of research assistant Marilena Poulopoulou on the food relief initiative she took part in between May and August 2020 in the city of Utrecht.

How are people of color represented in art collections? And do young people of color feel that museum collections reflect their norms and values? Developmental psychologist Carolien Rieffe is invited to serve on the Expert Group ‘Musea bekennen kleur’ because of her knowledge of children and young p…

On February 1st Cristina Grasseni started as Professor of Anthropology at the Institute for Cultural Anthropology and Development Sociology. She is bringing the ERC Consolidator project ‘Food Citizens?’ with her to Leiden. A few questions to get to know the new professor.

AI can help scientists to collect data about the earth faster. This saves them a lot of time on trying to figure out how to analyze all the data they collect. Julia Wasala, PhD student at the Leiden Institute of Advanced Sciences(LIACS), tells us how AI can be used to save time.

On 22 May, astronaut André Kuipers opened the new Mediterranean garden in the Hortus. With this water-efficient garden, the Hortus aims to offer inspiration for future- and climate-proof garden planting. Prefect Paul Keßler and scientific director of the Leiden Observatory Ignas Snellen also signed…

Canal Watch (De Grachtwacht), which has been cleaning canals since 2018, has received the Dutch Research Council (NWO) Communication Initiative Award.

What did medieval scholars think of the books they read? In her inaugural lecture, Professor Mariken Teeuwen will talk about the texts they wrote in the margin.

A previously unknown document about Rembrandt’s student years in Leiden has been found in the archive of Leiden University. The document, which is being kept at the University Library, proves that Rembrandt studied at Leiden University for longer than has always been assumed.

In the 16th and 17th centuries, many Northern-Netherlandish artists drew outdoors to train their hands and eyes, and to record landscapes and nature. In her inaugural lecture on 21 March 2022, Yvonne Bleyerveld, Professor by Special Appointment of Art on Paper and Parchment, draws our attention to a…

An impressive 60 alumni recently came to the Dutch Embassy residence in Japan to meet, network, see friends and practise their languages.

Scientific research at the molecular level on a collection of medieval skeletons from Norton Priory in Cheshire, United Kingdom, could help rewrite history after revealing they were affected by an unusual ancient form of the bone disorder, Paget’s disease. Osteoarchaeologist Carla Burrell, attached…

To achieve societal impact, you need to do more than solely writing academic articles. That's the idea behind the Master Honours Class 'Leiden Revisited', in which students demonstrated with art how residents at the outskirts of Leiden experience the city. 'It's the perfect way to start the debate.'

From closed government systems in the Middle East to an exceptionally open Dutch government. Public administration lecturer Alex Ingrams is an expert on transparency: ‘Why are some countries secretive? And what role does technology play?’

When we think about ancient Egypt, the first things that come to mind are usually mummies and sarcophagi. According to researcher and Rijksmuseum van Oudheden curator Lara Weiss, that impression is unjustified. She made an audio tour for the Rijksmuseum van Oudheden that focuses on living Egyptians…

A team led by Erik Danen from the Leiden Academic Centre for Drug Research has received a 3 million euros NWO Science Groot grant to unravel the first steps of metastasis. Danen will work together with biologists and theoretical and experimental physicists from Dutch Universities. ‘Understanding these…

From 6-8 April 2026 the conference

What if particles don’t slow down in a crowd, but move faster? Physicists from Leiden worked together and discovered a new state of matter, where particles pass on energy through collisions and create more movement when packed closely together.

After years of lobbying by environmental activists, a deposit scheme for small plastic bottles is to be introduced on 1 July 2021. One of the leaders in the fight is alumnus Merijn Tinga. The university will have collection points for plastic bottles and is also supporting the Plastic Spotter citizen…

The internet is a good place to rapidly collect large amounts of data. But if you don’t watch out you’ll collect very biased, one-sided data. These were the warning words of the speakers at a symposium on 5 March about transparency and responsible data science.

Damien van Puyvelde has received funding (over 47.000 euro) from a new Research Council pilot for his study 'Open-source research and the war in Ukraine: intelligence for the people by the people?' We asked the researcher five questions about this project and the opportunities this creates for him.