In a one-hour interview on Dutch radio programme Sleutelstad, Anne-Laura van Harmelen talks about her research into the role friendships in adolescents' well-being, the resilience paradox and the role of social, hormonal and genetic factors in stress-levels and resilience.

What should we do about litter in the countryside? Can you tell from camera images if someone is guilty? And what does your heart rate really look like? Get answers to these questions and more at the free ‘Wijsneus Festival’ on Friday 16 September at Leidse Hout Park.

What will happen if the lights in a large part of the city are switched off? How many stars can you see without all that light pollution? This is what researchers, artists and the residents of Leiden are going to investigate during Seeing Stars Leiden on 25 September. ‘Leiden is the ideal place for…

Master’s students in the Honours Class ‘Leiden, City of Refugees?’ were asked to contemplate the concept of ‘the other’ from both an academic and an artistic perspective. The result was the exhibition ‘The Invitation’ which was presented at Stadsbauhaus on 4 June.

Due to its success, the Leiden2022 Q&A has been extended and is looking for even more thought-provoking, interesting or unusual questions.

What is Planet A? A new exhibition in the Old Observatory sheds light on how we all have different perceptions of earth. In five art installations, visitors are confronted with their own beliefs and how these differ from those of others.

In 2024, many of our students and staff won great prizes and secured important research grants.

In 2023, many of our students and staff won great prizes and secured important research grants.

The lecture series 'Humanity in the Automated State' examines how AI and automated systems are transforming government and public administration and what it means to be human within these digitised institutions.

The Dies Natalis for alumni on 11 February was an online event. Almost 1,000 alumni tuned in to Bastiaan Rijpkema’s interview with Annetje Ottow, who had then been President of Leiden University’s Executive Board for all of three days. Alumni are part of her portfolio on the Executive Board.

2020 was an eventful year. You can see that in our photos: one and a half metres distance, an empty university, attending ceremonies online and working from home. The image editors have selected the twelve most eye-catching photos of the past year..

On Thursday, November 20, 2025, the Leiden Jewish Studies Network celebrated the launch of the book Still Lives: Jewish Photography in Nazi Germany (The University of Pennsylvania Press, 2025) co-authored by Ofer Ashkenazi (Jerusalem), Sarah Wobick-Segev (Hamburg), Shira Miron (Basel) and Rebekka Grossmann…

Professor Hester Bijl will be appointed Rector Magnificus of the Executive Board of Leiden University on 8 February 2021. She will be the first female Rector Magnificus of Leiden University. Bijl has been Vice-Rector Magnificus of the University since 1 November 2016. Carel Stolker, who has served as…

Three new initiatives will provide a more diverse view of Leiden’s academic history, literally and figuratively: a historical study on the background of students and scientists, a new book about the Academy Building, and two new sculptures of female scientists, Ewine van Dishoek, Professor of Molecular…

On 28 June 2024, Dr Kristof Gombeer spoke on State jurisdiction and the protection of people at sea at the 81st Biennial Conference of the International Law Association (ILA) in Athens, Greece.

Alumnus Ruurt Hazewinkel (90) has presented Leiden University with a special gift: a historic house on Leiden’s Rapenburg canal. He handed over the key to Rector Carel Stolker on Monday 25 January.

Ankie Broekers-Knol, President of the Dutch Senate and Leiden alumna, opened the new Alumni House at Rapenburg 68 on 5 September. The Alumni House, next door to the Old University Library, where the University's Administration and General Services are located, is the new home of the Leiden University…

'Never underestimate universities as a connecting force.' These were the words of Rector Magnificus Carel Stolker in his address on the Dies Natalis, in reference to the imminent Brexit. A message that struck a chord with the Dutch and international media.

The lecture series

Tijdens de Dies Natalis worden elk jaar de Leidse Universitaire Scriptieprijzen uitgereikt. Elke faculteit selecteert hiervoor haar beste scriptie. De beste scriptie van FGGA is geschreven door Leah Beekhuizen met de titel: ‘De lusten of lasten van radicale collega-belangenbehartigers’

Princess Beatrix celebrated her eightieth birthday on 31 January. She has a warm bond with Leiden University, having studied Law and Sociology here. Since graduating, she has been a frequent visitor to the University, to receive an Honorary Doctorate, for example, and at the re-opening of the Academy…

With Dies Natalis (Foundation Day) approaching, our year-long 444th birthday celebrations are coming to an end. We ran numerous activities, from a manhunt to an exhibition, and all our doctoral defences were given a 444 twist. A peek behind the scenes at the creatives and makers who helped make our…

The relationship between academia and democracy is a complicated one. Should policy makers listen to scientists or to citizens? That is the dilemma Valérie Pattyn and Johan Christensen will discuss with a panel of experts during the academic conference EuroScience Open Forum (ESOF).

PhD defence

How do digital technologies affect adolescent mental health and resilience? How do we foster a secure online environment? How should we deal with increasing rates of online crimes among adolescents? During the mini-symposium ‘The effect of the online world on adolescents’, presented by the interdisciplinary…

Leiden University has a long tradition of Asian language education. Chinese, Japanese and Korean partners are essential in providing a practical side of learning education.

On this page the programme and sessions can be found.

In 2021 many of our students and staff won fantastic prizes and were awarded important research grants. This is our traditional review of these successes as the end of one year marks the beginning of another.

Leiden University regularly confers honorary doctorates, and presents awards and prizes.

On Friday 11 March (16.00 hrs.) Minister Dijkgraaf (Education, Culture and Science) will give a speech at Leiden University entitled ‘When knowledge becomes critical’. In the speech, he will address several critical challenges in science and society. The livestream will be open to all.

Leiden’s beadle, Willem van Beelen, is retiring on 29 February. How does he look back on his career and what do those in the know have to say about him?

Lecture, Com(parative) Syn(tax) Series

‘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.'

Professor Kees Waaldijk presented the report on the LawsAndFamilies Database to Pearl Dykstra, member of the High Level Group of Scientific Advisors of the European Commission on 25 April. This comparative study shows that in European countries same-sex partners are increasingly gaining equal rights.…

Professor Annetje Ottow will be appointed President of the Executive Board of Leiden University on 8 February 2021. She will be the first woman to be appointed to this post at Leiden University.

At the end of the year we always compile a list of our most interesting, most popular articles from that year. In the crazy year that was 2020 one topic was at the forefront of everyone’s minds: coronavirus. Fortunately, there was also room for other stories.

Inviting a navy officer to talk about piracy, inspiring critical thinking and offering to help with finding internships. Students appreciate that and therefore nominated Anita van Dissel, who teaches Maritime History, for the Lecturer of the Year Award.

Het zichtbaar maken van ongeschreven verhalen van inheemse culturen en volken van de Cariben. Dat doet de tentoonstelling ‘Caribbean Ties’ in de Oude UB.

30 July is the International Day of Friendship. The student years are a time when many close friendships are formed, and a surprising number of them last a whole lifetime. Two of our alumni share their stories about a special friendship.

The Dies Natalis for alumni was held on Saturday 10 February, organised by the Leiden University Fund (LUF) together with the University. Almost 500 alumni came together in the Kamerlingh Onnes building to celebrate the 443rd anniversary of the foundation of their alma mater.

Covid year 2021 might have felt somewhat less strange than the year before, but the virus still left its mark on University life and our students and staff. Fortunately there was also room for research, visiting dignitaries and in-person classes. And our social media accounts weren’t only about covid…

2024 has been an eventful year, and this is reflected in our social media posts. An overview of the most liked, most shared or most impressive posts.

‘You are the last generation that will have an effective influence on the future of the world.' This was the message given by guest speaker Maurits Groen to the 135 students who graduated at Leiden University College in The Hague on 6 July.

The lecture series “Humanity in the Automated State” held its second session on January 12, 2026, at Leiden Law School. Dr. Aya Rizk from Linköping University brought her expertise on Information Systems whit a focus on how digital technologies and data drive organizational change, particularly in decision-making…

The lecture series

The Leiden University Green Office is pleased to announce its Spring Podcast competition -- Beyond the Safe Space -- on the theme: the Planetary Boundaries.

A record number of 417 PhD candidates defended their theses in 2016. How many of these were cum laude? What were their propositions? The advantage of dirty nappies, for example. Read about the facts and figures on PhD defences in 2016.

The lecture series “Humanity in the Automated State” continued on February 12, 2026, at Leiden Law School with Professor Madalina Busuioc of VU Amsterdam, a public governance scholar, AI-DG Lab co-director, MSc programme founder, and recipient of a European Research Council grant.