Guus Heerma van Voss, professor emeritus of labour law, delivered his farewell lecture on 18 October and held a mirror up to his colleagues and himself. Had they done enough to ensure the welfare state keeps up with the times? ‘Did we just stand by and watch?’

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.

A poor woman from Java plucks three cocoa fruits from a plantation, to use as seedlings. The judge convicts her of theft, but she is not sent to prison. This is one of the examples of legal differentiation that Adriaan Bedner, Professor of Law and Society, will be examining in Indonesia. Inaugural lecture…

Starting in September 2026, Leiden University in The Hague will begin establishing a new Knowledge Centre for Kingdom Relations. In addition to bringing together researchers and developing education on Kingdom relations, the goal is to contribute to the public debate and foster greater mutual understanding…

Lecture, Research talk

University ceremony

Almost everywhere in the world where the post exists, the beadle is a ‘master of ceremonies’ who only makes his appearance on special occasions. In Leiden the beadle does much more. He is indispensable at dissertation defences and orations. He directs ceremonies and is a master at calming nerves.

Seif Kabil is the new chairman of the International Young Leiden Law Alumni Network. Time to get to know him better.

Harriet Zurndorfer passed away on 18 March 2026 in Leiden.

Lecture, SMILE series

Leiden University contributed to colonialism and slavery through its research and teaching. And governors and residents of Leiden had an active role in colonial networks. These are the findings of two explorative studies presented on 3 April.

On Friday 5 September, to mark our 450th anniversary we celebrated the opening of the faculty year together with the Leiden Revisited alumni event. Combining both annual events was a huge success, especially as staff brought along their family, partner or friends.

More effective diagnosis and prognosis than ever, with less intrusive medical screening? Scientists from Leiden, Delft and Rotterdam are well on the way to achieving just that. Imaging professors Serge Rombouts and Wiro Niessen are working on an extremely rigorous, self-learning adviser for radiologists.…

The team of WIIS-Netherlands exists out of the board members and the advisory council.

It is a holy grail among behavioural scientists: can you predict how close a group will become? An international research team from Leiden, Oxford and Helsinki has investigated the development of friendships within the Leiden student association Augustinus and obtained some remarkable results.

Lecture, CHiLL series

This was the programme for The Knowledge Orchard 2025:

Seminar

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…

Who has control over which piece of land? Since independence in 2002 East Timor has been struggling to create a land tenure system that can deal with the grievances of past colonial ruling and conflict, and address the needs of its citizens, says researcher Bernardo Almeida. PhD defence on September…

Bart Barendregt has been appointed professor by special appointment per January 2020. “Anthropology of Digital Diversity has the potential to show that there are always multiple directions and different solutions to the challenges the digital transition to us all is.”

The brand-new American President Donald Trump delivered his inaugural speech on 20 January. There was little sign of conciliation and he was liberal with the truth, in the opinion of a number of Leiden academics. One professor is more positive: 'He wants to take on radical Islam.'

Arts and culture

The biweekly Lunch Time Seminar is an online only event, but it is not publicly accessible in real-time. If you would like to attend one of the upcoming sessions, please send an email to sails@liacs.leidenuniv.nl.

YAL raises its voice on policy matters.

Read all about YAL membership and the members of the Young Academy Leiden.