How did the medieval manuscript develop as a physical object during the Twelfth Century Renaissance and what do these changes tell us about the intellectual culture of the period?

All manuscripts submitted to Inter-Section need to adhere to these guidelines. Since 01-08-2022 Inter-Section uses APA7 as a reference system. Inter-Section therefore now follows the new Faculty of Archaeology guidelines concerning referencing and bibliography.

We are living through an age in which social media platforms have given way to entirely new forms of politics and politicking. It is no exaggeration to say: there is a before and after social media.

In the ‘Educatips’ column, lecturers in Child and Education studies share their most important insights on teaching. This month: Tirza Smits, Kim Stroet and Marit Guda observed frustration among students working in groups, often due to poor communication. So they decided to build a tool to help.

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.

LUCL is glad to announce that two of its members have been awarded an NWO Vrije Competitie Grant.

Young people are particularly susceptible to misleading information on social media. Yet insights from developmental psychology show that they also have unique strengths to build resilience. In new research led by developmental psychologist Ili Ma, scientists, schools, parents and policy makers are…

In the near future, students of the LDE Bachelor Honours Programme Sustainability will take on real-life sustainability challenges. But first, the course ‘Fundamentals of Sustainability’ provides them with an environmental mode of thinking: “It allows you to focus on what is useful in practice.”

We are pleased to invite abstracts for the conference ‘H2OLAW – Law-Science Interfaces within the Law of the Sea and Fresh Water Law’ hosted by the Grotius Centre for International Legal Studies, Leiden University. The conference will take place on 26 and 27 September 2024 at Leiden University in the…

Migraine can’t be diagnosed with a blood test, scan or physical examination. Language therefore plays a crucial role in its diagnosis. Neurologist Joost Haan has researched the relationship between language and migraine, and looked at how migraine is described in fiction. His PhD defence is on 22 Oc…

The opening of the academic year will see the presentation of the LUS Teaching Prize to the best lecturer at Leiden University. Get to know the nominees. This week: Jan van Lith.

With a grant from the Digital Infrastructure Insights Fund D//F, John Boy and members of the d12n research cluster will explore new ways critical technologists try to align their work with digital technology with the political goal of defending the public interest.

Veel mensen denken dat zware metalen giftig zijn en mens en natuur altijd schade aanbrengen. Dat beeld moet genuanceerd worden, vindt hoogleraar Sylvestre Bonnet.

The university is home to many pearls of research institutes that do not make the news every day. The Executive Board visited one such pearl, the Institute of Philosophy, on Tuesday 1 July. It resulted in an inspired conversation.

Turkish politics was shaken by the arrest of Istanbul mayor Ekrem İmamoğlu, along with dozens of others from the main opposition party.

In our globalised economy, goods and services are frequently produced abroad. Is it the producer or the consumer that should be held responsible for greenhouse gas emissions associated with production? Together with colleagues from Berlin, Hauke Ward of the Institute of Environmental Sciences (CML)…

The Ministry of Home Affairs and Kingdom Relations (BZK) is establishing two new professor chairs for the Kingdom.

Three decades ago, cyber-diplomacy did not exist. The interest in Information and Communication Technology (ICT) as a vector of change in international relations was limited to a few mostly technical organisations, and a restricted number of states.

Hoogleraar Radicalisation Studies Tahir Abbas wil mensen er bewust van maken dat radicalisering voortkomt uit hoe wij als mensen samenleven

Six alumni of the Crisis and Security Management – Governance of Crisis master’s programme shared their experiences and career advice with students on 15 October, during a panel discussion.

Nationalism is so prevalent in our society that we hardly realise it once didn’t exist. In his new book, senior university lecturer Eric Storm reveals the global history of the phenomenon. ‘Nationalist movements have always influenced each other.’

Minister Dijkgraaf van onderwijs wil het aantal internationale studenten terugdringen. Maar mag Nederland dat wel? En zo ja, is het ook wenselijk? Deze vragen behandelde Mark Klaassen, universitair docent bij het Europa Instituut, tijdens de slotbijeenkomst van het Honours College Law op 12 juni.

Are magnetic fields older than the first light? And how did they influence the development of our universe right after the Big Bang? Cosmologists from Leiden, Groningen, and Utrecht are now collaborating to investigate this.

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.'

This year, two Leiden master students will be awarded a KNMP Student Award. Both Wisse van Os and Jip Linthorst will receive 1,000 euros from the Royal Dutch Pharmacists Association (KNMP) as a reward for their excellent study results, motivation and commitment.

Authors: Pierre-Bruno Ruffini and Olga Krasnyak

More than a hundred people took part in the conference on Studying with a Disability on 20 April. Dozens of students shared their experiences. 'I would rather you ask me the same question a hundred times than that you decide on my behalf.'

With his essay 'Why science?', mathematics prodigy Lars Pos (18) won the Robbert Dijkgraaf Essay Prize. Within the theme 'The fascinating workings of science', the bachelor student wrote a plea for the societal value of fundamental scientific research. 'Because you don’t know beforehand where we can…

After months of preparation, the moment of truth had arrived: would the skies above Leiden clear for the promised glitzy planet-and-star show? The people of Leiden turned out in their hundreds to go star-hunting on 25 September. They became more aware than ever of the effects of light pollution.

Italian nurse Daniela Poggiali was arrested and convicted of murdering two hospital patients in 2014. Her case attracted the attention of Leiden statistician Richard Gill. After his investigation, together with an Italian colleague, Poggiali was acquitted last autumn. Together with fellow statisticians,…

Ilja Leonard Pfeijffer delivered the Huizinga lecture on Friday 8 December in a packed Pieterskerk. The writer seized the opportunity of the 52nd edition to point out the importance of creativity, both for artists and scientists.

In mid-March 2020, the global coronavirus outbreak changed everything in the Netherlands. Staying at home as much as possible and the 1.5 metre rule became the standard. One year on, we reflect on the past year with four Leiden Law School ‘insiders’. What kind of year did they have? And what are their…

Ever since Nadine Akkerman, Professor of Early Modern Literature & Culture, came across a woman spy in her research, secret agents have kept cropping up in her work. Now there’s Spycraft, a popular history book exploring the espionage techniques used by early modern spies, which she has co-written with…

When children were asked to draw a scientist, a bald, middle-aged man in a white coat was most often depicted. Why is that? A group of Leiden University science communication researchers discovered that children already get this impression in primary school. Published in PLOS ONE on 16 November.

Stories of resistance in the Second World War are widely covered in Dutch historiography: Hannie Schaft, Erik Hazelhoff Roelfzema, and Professor Cleveringa are some of the best known. But these accounts largely focus on the Dutch domestic perspective. On the other side of the world, a complex colonial…

At a time when the climate crisis demands global action, Leiden University College’s (LUC) research project REFloC (Resilient Ecosystems and Flourishing Communities) in Ghana is choosing a different path: listening closely.

What are the origins of the Islamic Empire? And what was daily life like there? Two new Ted Ed animations answer these questions in simple language. Arabists Petra Sijpesteijn and Birte Kristiansen explain what the process of developing the videos was like.

A passion for video games, visuals and science: it almost seems impossible to bring all of this together. Yet, scientific animator Vera Williams found that dream combination at NeCEN's microscopy lab. 'An image or animation can help clarify the content of complex research.'

On Friday 22 March, the Effective Protection of Fundamental Rights research programme held a successful Annual Research Day (Toogdag) in Gravensteen building. This year’s theme was ‘The Concept of Justice in a War Era: The Cases of Gaza, South Sudan and Bosnia and Herzegovina’.

Academia and games. One is for serious people who only have time for research, the other is a pastime best avoided if you are or want to be one of these serious people, right? Not at all!

A whole week was dedicated to fair partnerships and equitable exchange in Leiden-African education and research

A standing ovation. A wave and a smile from the president. A final selfie. Ukrainian President Volodymyr Zelensky addressed students in the Netherlands for the first time on Tuesday morning via a livestream in The Hague. He did so in front of two packed lecture halls at both Leiden University and The…

The perception of the Middle East is riddled with stereotypes that have had dire consequences on its people. What is myth and what is reality? How did these stereotypes come about? What consequences have they had? All of these questions and more are answered within this reading list.

Sex without mutual consent is a criminal offence. The proposed new Dutch sexual offences law aims to better protect victims of sexually transgressive behaviour. But the key issue is this: the rules of evidence have not changed, so will victims actually benefit from the new legislation?

Political scientist Leila Demarest tells about her research to Nigeria’s National Assembly. How do politicians cooperate and how are public resources distributed among the different regions?

For two decades, language experts were certain that babies were able to learn language rules from as young as the age of seven months. However, recent research carried out by a consortium of four Dutch baby labs led by researchers from Leiden cast doubts on this certainty. We spoke to researchers Andreea…

The 2025 Data for Policy conference at Leiden University explored how digital and green transitions can shape a more sustainable and inclusive future.

They never cross our minds until, that is, they become damaged and then they’re a huge problem: our sewers. Their maintenance could be much faster and more accurate, PhD candidate Dirk Meijer has discovered. Algorithms are also proving to be a godsend deep underground.

The annual New Year Lecture for Honours College Law took place on Friday 17 January. This year’s speaker was Barbara Zwirs, author and former assistant professor in criminology at Leiden Law School. Her lecture got 2025 off to an inspiring start.

In haar boek ‘Diensten met geheimen’ vertelt Willemijn Aerdts hoe de AIVD en MIVD te werk gaan. En ontkracht ze ook een paar mythes.