Stilzitten doet alumnus Bart Jansen niet graag. Zo geeft hij les in onder meer Nederland, Maleisië en Curaçao, houdt hij zich naast het recht ook graag bezig met kunst en mystiek en vindt hij naar eigen zeggen ‘alles wat fout gaat’ wel interessant aan de rechtsfilosofie. ‘Ik ben gek op veelzijdige mensen;…

On 1 September 2023, 280 students received their Bachelor Diploma of International Studies. The students were awarded their diplomas in the historic Pieterskerk in Leiden: the UNESCO world heritage site, where the university was originally founded in 1575. A large audience of about 700 people consisting…

Wars, climate change and the effects of covid have caused a global decline in children’s well-being. In her inaugural lecture Ann Skelton, Professor of Children’s Rights in a Sustainable World, points to the disastrous effects of multiple interacting crises.

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

Criminology students Simone Kruijt and Noor Hekker conducted research into cybercrime in Leiden and presented their findings to the regional police and an enthusiastic Mayor Lenferink. The conclusions call for a new approach, said Lenferink.

How do opinions form and change in large groups of people? That's not just a sociological question, it's a mathematical one. PhD candidate Federico Capannoli studied opinion dynamics. He defended his thesis on November 19.

In the late 19th century, the Dutch government introduced a tax system in the Dutch East Indies, with the intention of transforming the colony into a modern state. PhD student Maarten Manse wrote his thesis on this development and discovered how grandiloquent colonial ideals became bogged down in daily…

In cities, parks take the blame for mosquito problems. However, the real issue is usually a few streets away. Drains and standing rainwater create ideal breeding grounds for larvae. As a result, controlling adult mosquitoes in parks makes little sense, says environmental scientist Louie Krol in his…

Leiden researchers share their work with a global audience through the international journalistic platform The Conversation. What are the benefits? And how does it work? Two researchers talk about their experiences and why colleagues should consider taking the same step.

How do you detect life on a planet light years away? During her PhD research, astronomer Willeke Mulder worked on an instrument to detect such signals – culminating in an experiment from a hot air balloon.

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.

Julius van der Poel recently joined the Institute for History as a PhD candidate part of Judith Pollmann’s Spinoza Project. Below he introduces herself.

Sang-Ah Yoo is a freelance journalist and is following the lateral entry programme Dutch at ICLON Leiden University. She enjoys showing students what language can do for you.

Sandra Palmen studied tax law at Leiden University and built a career within central government, currently as State Secretary. She was one of the first to raise the alarm about the child benefits affair and is now righting the wrongs.

Chemotherapy, but without hair loss or extreme fatigue. It may be possible if the toxic drug only becomes active where it is ‘switched on’ by light. Matthijs Hakkennes has helped bring that idea closer to reality and obtained his PhD cum laude. ‘I received many thank-you emails from China and Bangla…

Karwan Fatah-Black, a historian at Leiden University’s Faculty of Humanities and senior researcher at the KITLV/Royal Netherlands Institute of Southeast Asian and Caribbean Studies, has been appointed as the UNESCO Chair holder in Comparative History of Slavery and the Transition to Citizenship.

In the sixteenth century, many Protestants fled to the Northern Netherlands to avoid Spanish oppression in the south. This exodus included tapestry makers from Oudenaarde who eventually settled in Gouda. Professor by Special Appointment Yvonne Bleyerveld and researcher Jos Beerens have been awarded…

PhD ceremonies in the Academy Building will be much easier for family, friends and other non-specialist audience members to follow after the summer. The Doctorate Board is pleased to have decided that as of 1 September, all Leiden PhD candidates will begin their PhD defence with a lay talk. ‘It can…

During an inspiring meeting at the Health Campus The Hague on 2 April, Jan Anthonie Bruijn and Jet Bussemaker reflected on their experiences in politics and looked ahead to the future of Dutch healthcare.

Hiring academics is more than just tallying up publications, says academic director and history professor Jeroen Duindam. He and his colleagues have come up with tips and guidelines for interview committees that align with the new system of recognition and rewards.

In the Philippines, Indigenous communities have been harvesting wild honey for centuries. A new chemical analysis of this honey now provides insights into the biodiversity of the region. ‘And an additional reason to protect the national tree properly,’ says lecturer Merlijn van Weerd of the Centre for…

Third-year Security Studies students tackle real-world security challenges for organisations such as Microsoft, the NCTV and Schiphol. From AI and human smuggling to international cooperation, they present their recommendations to professionals in the field.

From 1967 to 1982, the United Nations undertook several peacekeeping operations in the Middle East. In his thesis from the Institute for History, Diego Salama examines how these operations were connected and their impact on the region.

Chen Wang has recently finished her doctoral research and will be defending her dissertation on May 13th. For her PhD she researched the lead in artefacts from ancient China, using isotope analysis to match them to their origins. She applied analytical methods to new contexts and used the data from…

Organisation

Drones zijn in korte tijd onderdeel geworden van het dagelijks leven. Ze worden gebruikt door hobbyisten, bedrijven, politie en defensie. Tegelijkertijd groeit de zorg dat dezelfde technologie ook kan worden ingezet door kwaadwillenden. Onderzoeker en promovendus Stijn Willem van 't Land zocht dit u…

Lecture, NGL-lezing

Lecture, Workshop and Egeria Lecture

Lecture, Tuesday Talks: Science Insights

From academic freedom to security and medical breakthroughs: during Leiden University’s 451st Dies Natalis, the speakers reflected on the role of universities in a world of social and geopolitical tensions.

Open Day

Alumni event

There are many tributaries to Rosalin Kuiper’s story and they all lead to the sea. The 28-year-old sailor was one of the five-person Team Malizia in the world’s most prestigious sailing competition: the Ocean Race.

During the spring of 2021, a group of eight biology students from Leiden set out into the dunes in search of amphibians. Using DNA, they determined the geographic origin of the animals. And guess what? In many cases they discovered exotic populations of animals that do not naturally belong in The Netherlands.…

Hak, lawyer, international imagery law lecturer, and adjunct associate professor, talks about his PhD research on the use of images in international criminal prosecutions. He was a public prosecutor in Canada for over 30 years and dealt primarily with the prosecution of homicides and other major cri…

Ten Leiden social and behavioural scientists have successfully applied for the NWO Open Competition. With this Open Competition, NWO gives researchers the chance to start small, high-risk, innovative or promising research projects.

Three Psychology students will present a poster of their thesis research on Alzheimer’s and dementia at the international conference AAIC Neuroscience Next. ‘I remind myself to recognise - without fear or shame - when I don't know something.’

Ambroise Paré, Thomas Sydenham and Herman Boerhaave: all were great medical innovators in their time. We know far less about the 19th-century Russian physician and scientist Nikolay Ivanovich Pirogov. PhD candidate Inge Hendriks researched him in Dutch and Russian archives and collections. She discovered…

Mojan Samadi obtained her PhD in 2020 in Leiden and has since remained at the university as an assistant professor. Her research currently focuses on gender and criminal law, with a key question being how criminal law should address femicide.

Eleven lecturers from Leiden University have been awarded Comenius grants that will allow them to work with their teams on an innovation project within their own teaching. They have been awarded three grants of 100,000 euros within the Senior Fellows programme and four grants of 50,000 euros within…

Labour law professors have shaped research and education in Leiden since 1936. From the rise of trade unions to the AI revolution, the field has constantly evolved. Major changes are on the horizon again in 2026. 'Labour law will always be important.'

Lecture, Pint of Science

Lecture

Lecture

This is the final lecture in the lecture series Humanity in the Automated State. This lecture is featuring Professor Natali Helberger (University of Amsterdam) and will take place on 26 May 2026, 15.30-16.45. It's followed by a reception from 16.45-17.45. Professor Helberger will present…

Lecture, Comparative Indo-European Linguistics (CIEL) Seminars

Study information, Webinar

Study information, Webinar

Study information, Webinar