Universiteit Leiden stond niet altijd bekend als een bolwerk van vrijheid, betoogt Egbert Koops in zijn diesoratie. Leidsch Dagblad sprak met de hoogleraar rechtsgeschiedenis over academische vrijheid: ‘Het bolwerk van vrijheid moest veroverd worden.’

Climate change, depletion of natural resources, loss of natural and cultural landscapes, and many other (ecological) sustainability challenges urge us to (re)evaluate human interaction with the natural world. This renewed environmental consciousness has invigorated not only scientists working on effects…

During the Dies Natalis for alumni, February 11 2017, the annual university thesis awards ceremony was held. The winner of 2017 is Erik Kroon, of the Faculty of Archaeology. His thesis featured innovative research on changes in the technology of Neolithic ceramics.

This Thursday, January 18th 2024, our esteemed colleague Jan Zaanen passed away. Jan was one of our star scientists, larger than life, with an unabashed, boisterous drive for the best of physics at the Institute Lorentz, at the Leiden Institute of Physics and in the full international scientific community.…

On the occasion of the appearance of the monograph "Varieties of the Self.Peter Abelard and the Mental Architecture of the Paraclete" written by Babette Hellemans and published at Brill in 2023, a workshop will be organized concerning rules of observance as ‘texts of life’ in ascetic communities. The…

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?

How has progress been made on diversity and inclusion at Leiden University over the past decade? Attendees reflected on this at the D&I Symposium 2024: Untold Stories. And in the workshops, students and staff discussed the next steps toward a more inclusive community.

Since 2000 the Leiden Student Council (LSR) yearly awards a prize for the best teacher of the university at the Dies Natalis.

On 8 February 2016 prof. Jennifer Chayes received her Honorary Doctorate at Leiden University as part of the 441e Dies Natalis. A video registration of this special event has now been published. For the ceremony of Jennifer Chayes’ Honorary Doctorate, please scroll to the 82th minute.

You can't have missed it: Leiden University celebrated its 444th anniversary in 2019 with a year-long programme of activities for the people of Leiden and The Hague. The Dies Natalis on 7 February 2020 marks the end of this special year. High time to look back at what we did!

Symposium

447th Dies Natalis

Leiden University is celebrating its 450th anniversary in 2025 with a feast for the eyes, ears and spirit. The anniversary year opens with an extra special Dies Natalis on 7 February. Highlights includes an alumni festival, three exhibitions and a canal concert.

Each year on the university’s birthday, children at primary schools in Leiden and The Hague have a lesson from a professor – about children’s rights and robots in surgery, for example. The children get to do activities. And ask questions: ‘How do you become a professor?’

Big celebration upcoming weekend: MIRD's 20th anniversary is on the cards. Four alumni from different periods tell what this unique two-year master's in International Relations and Diplomacy has brought them.

On November 1st, 2024, professor Johan Kuiper will retire and be appointed as emeritus professor at Leiden University. Since November 2008, Johan Kuiper was professor of Therapeutic Immunomodulation in the division of, at that time, Biopharmaceutics (which later on became the division of BioTherapeutics)…

Leiden University is awarding an honorary doctorate to virologist Marc van Ranst. Van Ranst has been one of the main advisers of the Belgian government during the Covid pandemic. German Arabist Beatrice Gründler will also receive an honorary doctorate for her work in the field of Oriental Manuscript…

On 9 February, 2015, the 440th Dies Natalis, Peter J. Katzenstein will be awarded a Leiden University honorary doctorate in recognition of his contribution to the social sciences in general, and to political science in particular. Professor Katzenstein (Cornell University) is one of the most influential…

Archaeology can help us reflect critically on our European identity. This is what David Fontijn will claim in his inaugural lecture on 18 March.

Neuroscientists Ineke van der Ham (Leiden University) and Anouk Keizer (Utrecht University) regularly use VR in their research. Their experiences with the medium raise many questions about the ways VR is experienced by different people. Therefore they conducted an VR experiment at the cinedans festival…

Den Haag is de stad van vrede en recht. Rondom deze thema’s organiseren culturele en maatschappelijke organisaties het festival. De Universiteit Leiden is nauw betrokken bij de organisatie. Universitaire medewerkers en studenten doen bijvoorbeeld mee aan de Vredesloop, Marieke Liem van het Institute…

The city centre of Leiden is covered in them: wall poems. When roaming around, you come across poetry written in the Latin alphabet, but also in scripts that might be more difficult to understand for the average person living in Leiden. In a new series of videos, Tijmen Pronk talks more about this.

Leiden biophysicist Stefan Semrau was granted an NWO Vidi earlier this month. He will use the grant to study the role of electricity in embryonic development and tissue regeneration.

The American president Trump is considering military intervention in Mexico to get rid of the drug cartels once and for all, but Mexico is not interested in other countries' interventions. According to Jelle van Buuren, Assistant Professor at the Institute of Security and Global Affairs, Trump's much…

Dying from viral infection due to organ failure and blood loss: we still know little about how it can happen. Among other things, Huaqi Tang developed an organ-on-a-chip to figure it out. 'These technologies can offer unprecedented opportunities to fight the viruses that threaten our society.' Tang…

Microplastics are small pieces of plastic found in the environment. At CML research have been conducted in the distribution of these plastics on beaches around the world using citizen science. In addition, CML is conducting in depth case-studies in the Caribbean and along the Dutch coast. Follow-up…

When university lecturer Martine Bruil was on exchange in Ecuador as a teenager, she fell in love with the area's ancient languages. Now, more than 20 years later, she is starting a research project on the kinship of the language Awapit with the Quechua language that was spread by the Incas.

Although Dick Schoof, of no party affiliation, has been nominated by the four coalition parties as the new Dutch Prime Minister, various experts have expressed doubts. Can he lead the new cabinet? Wim Voermans, Professor of Constitutional and Administrative Law, spoke to 'RTL Nieuws'.

In ten years, it is projected that ten percent of global civil aviation operations will be unmanned. Are the current international aviation laws and regulations up to these technological developments? Fernando Fiallos will defend his dissertation on 14 November 2019.

How can Ronald Mulder run his skates across an ice layer at 60 km/h? His skating blades get help from a lubricating layer of meltwater. In Leiden, physicists found this explanation to be incomplete. Theoretician Hans van Leeuwen and experimental physicist Tjerk Oosterkamp searched for a deeper answe…

The Iraqi archaeological site of Nimrud was recently recaptured from IS. The site has been severely damaged. The question now is, what to do with it? Should it be restored? Bleda Düring spoke with Trouw about this complex issue.

This study is important because it seeks to uncover whether clinicians' communication influences neurobiological and physiological outcomes for patients.

Effectively treating a severe case of pneumonia is often challenging. Identifying the pathogen behind it can be difficult. PhD candidate Ilona den Hartog tried something new: ‘We searched for answers in substances our own body produces.’ PhD defence on 17 September.

As a student, Thijs Brocades Zaalberg was primarily interested in diplomacy surrounding conflicts. Through research on peace operations and subsequently the fight against guerrillas, he became increasingly involved with the most violent aspects of colonial warfare. Per 1 September 2024 he is appointed…

During her work for the European Union, Sophie Vériter witnessed how young people in countries like Ukraine and Moldova were exposed to Russian propaganda. After mapping out the EU’s disinformation policy, the PhD candidate now advocates for a revised approach.

Sonja Barend distantieert zich van het toneelstuk Sonja, dat gebaseerd is op haar boek. Dirk Visser, hoogleraar intellectueel eigendomsrecht, gaf uitleg in het AD: ‘De auteurs hebben het recht om te zeggen dat ze niet meer achter de productie staan.’

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Festival

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