The Battle of Heiligerlee, on 23 May 450 years ago, is famous as an epic battle in Dutch history. But was it really so momentous? Professor of Early Modern History Judith Pollmann unravels the myths about ‘Heiligerlee’ and the Eighty Years' War.

It is crucial that Leiden University reflects on its colonial history. These were the words of Cleveringa Professor Gert Oostindie in his inaugural lecture on 24 November. ‘As a university community, we must dare to hold up a mirror to ourselves and, where possible and necessary, also take concrete…

The Honours Academy celebrates its tenth anniversary. How did the institute develop over time, and what are aspirations for the future? We speak with the current Dean and a predecessor who was there at the Academy's founding. A conversation about identity, inspiration, and impact ensues. ‘It is about…

CERQ is a questionnaire measuring cognitive coping strategies developed by Dr. Nadia Garnefski and Dr. Vivian Kraaij.

On this page you will find all information about the Bachelor of Security Studies that you need as a first-year student.

In 2017 Sasja van der Vaart-Verschoof defended her dissertation on Early Iron Age elite burials of the Low Countries at the Faculty of Archaeology. Out of 36 applications from ten different countries, her dissertation was awarded the Prix Européen D’Archéologie Joseph Déchelette on June 15th.

Developing a digital guest lecture for high school students. Jan Sleutels was immediately enthusiastic when he got asked to do this. The end result? Together with his colleague Maarten Lamers, he created the guest lecture 'Thinking about Artificial Intelligence'.

To what extent can global issues be solved by multistakeholder collaboration, a relatively new type of organisation? Jan Aart Scholte, the coordinator of the Global Transformations and Governance Challenges (GTGC) interdisciplinary research programme, has received a Dutch Research Council (NWO) grant…

Like ants, termites and bees, some bacteria work together as a multicellular group. There is a strict division of labour in such colonies, to make the group more resilient to the outside world. Now researchers have found that some parts of the bacterial colony can take ‘for the greater good’ to a whole…

Although Sander Wezenberg just started working in Leiden in March this year, he already managed to win a Vidi grant from NWO. Inspired by nature, Wezenberg wants to bring synthetic molecules to life and teach them to communicate. But who exactly is Wezenberg and what drives him?

Philosophy has an important contribution to make to society, says Professor of Practical Philosophy Glen Newey. You need people who can think clearly, certainly in positions of power and authority. Newey stresses that “there will always be a place for philosophy”. An introduction to the practically…

During a closing exhibition, participants of the Master Honours Class 'Leiden: City of Refugees?' present their invitation to an imaginary group of 'others'. By combining science with art, students learn to look at society in a different manner.

Mathematicians from Bordeaux, Leiden and Padua have been working together for 20 years. In 2004, they started a two-year mathematics master's degree in Algebra, Number Theory and Geometry (Algant). They celebrated the 20th anniversary of this consortium at the Algant graduation ceremony in Leiden.

Leiden chemists have created a new ultrathin membrane only one molecule thick. The membrane can produce a hundred times more power from seawater than the best membranes used today. The researchers have published their findings in Nature Nanotechnology.

‘We’ve only just begun,’ said Honorary Doctor Jennifer Chayes in her acceptance speech after receiving her Honorary Doctorate on 8 February. 'We are on the cusp of a data revolution, which will deeply impact both science and society.'

Specific fatty acid-sugar molecules allow leprosy bacteria, among others, to hide from our immune system. How exactly is not entirely clear. Hessel van Dijk, who received his PhD on 13 October, replicated the molecules, helping to solve a piece of the puzzle. Van Dijk's dissertation is titled: Synthesis…

Iranian molecular plant biologist Salma Balazadeh started her career in Germany. Now she sets up a research group in Leiden to study stress in plants to secure global food supply. Her outlook on women in science in the context of the International Day for Women and Girls in Science, 11 February.

A delegation from various Serbian universities and government institutions will visit the Faculty of Governance and Global Affairs from Monday 27 to Wednesday 29 May. They will discuss the development of an educational programme in public policymaking and analysis in Serbia. An interview with Serbian…

A flake of limestone (ostracon) inscribed with an ancient Egyptian word list of the fifteenth century BC turns out to be the world’s oldest known abecedary. The words have been arranged according to their initial sounds, and the order followed here is one that is still known today. This discovery has…

Graphene and other layered materials combine into completely new substances. Leiden physicists establish the ground rules for designing such materials by measuring how the layers in the stack interact. Publication on November 29 in Nature Communications.

The Netherlands organisation for Scientific Research NWO has granted a subsidy to prof. dr Wilfred H. van Soldt (Humanities, LIAS) and dr Diederik J.W. Meijer (Archaeology, Near East) to conduct a pilot excavation in Iraqi Kurdistan.

The LUF International Study Fund (LISF) will make changes to its allocation process following an investigation into diversity in its grants policy. This investigation, which was carried out for the LISF by, among others, former committee member Mariska Kret and master’s student Marjolijn Wijnen, has…

A virtual hand that feels as if it is your own. Feeling happier because a virtual face is smiling with you. Cognitive Psychologist Ke Ma discovered using virtual reality that the way we experience our body is more flexible than we thought. Ma: ‘We can think up some fantastic applications.' PhD defence…

Michelle Spierings has been awarded the ‘Glushko Dissertation Prize’ for her thesis work on: ‘The Music of Language: Exploring grammar, prosody and rhythm perception in zebra finches and budgerigars’. The award recognises and honours young researchers conducting ground-breaking research in cognitive…

Negatieve ambtelijke adviezen lieten eerder zien dat het uitroepen van een asielcrisis op grond van het vreemdelingennoodrecht vanuit democratisch en rechtsstatelijk oogpunt niet aanvaardbaar is. Wim Voermans, hoogleraar staatsrecht, licht in Nieuwsuur toe welke hordes bij zowel bij de inzet van het…

As a prelude to the Night of Discoveries, an Afternoon of Discoveries will be held in Leiden on 21 September for children from the age of eight. Researchers will tell exciting tales and the children will get to do experiments.

A certain type of oil droplets changes shape when cooled and shrunk: from spherical through icosahedral to flat hexagonal. Two competing theories couldn't fully explain this, but now, a Physical Review Letter by Ireth García-Aguilar and Luca Giomi solves the mystery.

Social scientists from Leiden University have worked with an international team to create teaching modules on migration.

Funded by a ZonMw grant, the LUMC and the Health Campus The Hague will be working with headache patients on research into the use of an electronic headache diary. This resource can help patients gain a better understanding of their migraine attacks and, together with the physician, produce the best…

A marvelous mosaic synagogue floor has been discovered at the Israeli excavation site of Horvat Kur. The timeworn stones of the mosaic clearly form the name ‘El’azar’. Leiden University researcher Jürgen Zangenberg and a group of Leiden students played a role in the excavation. ‘El’azar was likely an…

It is time for the international community to put a stop to war crimes – especially against medical personnel, argued international chair of Doctors Without Borders Joanne Liu in her Cleveringa lecture.

Α-synuclein, a protein associated with Parkinson’s disease, proves to bind with membranes in a surprisingly efficient way. It confirms scientists’ suspicion of the protein’s leading role in the transmission of neurotransmitters between nerve cells in the brain. Publication in PLoS ONE.

Cambridge Studies in International and Comparative Law

‘Free-market economics has reduced the value of higher education to a question of efficiency and productivity,’ says Sarah de Rijcke. And, she adds, there is no clear description of what we actually want scientific research to achieve. Inaugural speech on Friday 17 May.

Vanessa Frodermann, a PhD student at the Biopharmaceutical department of the Leiden Academic Centre for Drug Research, has discovered that arteriosclerosis could be inhibited by cellular therapy. Arteriosclerosis is one of the leading causes of the development of cardiovascular disease. Her PhD defence…

Sarah van der Kwast

Paul Brakefield, Professor of Evolutionary Biology at the Institute of Biology in Leiden (IBL) has been awarded an ERC Advanced Grant for his research. He will receive 2.5 million euro to develop his research programme over a period of five years.

Korea specialist Koen De Ceuster has combined 1200 posters from North Korea in one database. He believes the posters are extremely valuable for researchers who want to make a more in-depth study of this closed country. The database will be launched on 15 June in Leiden.

How to get a PhD position is clouded in mystery. In one afternoon, Peter van der Putten and Maarten Lamers talk about how (they think) the game is played.

Native women are invisible in Mexican society. This is the conclusion Barbara Ortiz draws in her dissertation. PhD defence on 23 February.

The Netherlands returned 478 artefacts to Indonesia and Sri Lanka this week, on the advice of a Dutch committee. Rightly so, says Leiden professor Pieter ter Keurs from the Museums, Collections and Society interdisciplinary research programme. ‘But do make it clear why you are returning something.’

Each year, poppies disperse seeds that grow into a new generation of flowers. Sometimes, some of the seeds postpone their germination for a few years, for example when they’re covered by a layer of sand. Only when the sand disappears, do they start to sprout. Margriet Oomen did mathematical research…

It often takes a long time for people with an eating disorder to seek help and receive treatment. eHealth could be a solution, PhD candidate Pieter Rohrbach has discovered.

If students are to be taught from the viewpoint of several different disciplines, they should first have a firm foundation in one field. They will then be better able to benefit from interdisciplinary teaching than if the teaching combines knowledge and working methods from very different fields. This…

Turkish and Syrian students met Rector Magnificus Hester Bijl to discuss how the university can support students who have been affected by the earthquake.

Leiden University is a member of the Una Europa European alliance. This partnership of 11 research-intensive universities is working to shape the university of the future.

The research Early Pleistocene human occupation at the edge of the boreal zone in northwest Europe published 8th July 2010 in Nature is part of the Ancient Human Occupation of Britain (AHOB) project, in which the Faculty of Archaeology of Leiden University is involved.

PhD student Wen Yang discovered how certain cell receptors in E. coli bacteria signal 'smells'. With the use of ice-cold electron microscopy microbiologists from Leiden gain more insight into how bacteria respond to their environment. Publication in mBio.

The interdisciplinary Kiem project ‘Violence as a Population Health Problem’ has resulted in a plan to apply for a large, yet-to-be-decided research grant. The so-called pressure cooker session at the heart of the project proved very effective.