At the start of the year a lot of journals publish lists of their most cited papers of the previous year. Three papers published by Leiden archaeologists were ranked in the top 10 of the Journal of Archaeological Science: reports.

In a speech on Keti Koti the Dutch king, Willem-Alexander, apologised on behalf of the royal family for the Netherlands’ historical role in slavery. What is the significance of this?

Leiden University has joined the Hague Climate Agreement. This comprises 38 climate deals aimed at making The Hague climate neutral by 2030.

In a recent article published on PLOS, Drs. Briana Pobiner and Ryan McRae of the Smithsonian Institution National Museum of Natural History discuss the top 13 discoveries in human evolution in 2023.

Leiden University will deepen its cooperation with knowledge institutions in Africa. During a trip to Ghana, a delegation spoke with several African knowledge institutions about intensifying their collaboration.

An extra-long cortège, three honorary doctorates, a quiz about 450 years of university history, a Dies Natalis rap and a call to defend academic freedom: these all featured in Leiden University’s 450th Dies Natalis celebration and the official start of its jubilee year.

With the introduction of three new master’s programmes in 2025/2026, the range of programmes offered by Leiden Law School will be even broader and more varied. The new degree programmes focus on economics, law and business administration, and law and migration.

Her part-time job as a city guide in Dordrecht opened Lotte Hamm's eyes: not business administration, but history was her dream study. This semester she starts her bachelor's degree.

Education

Simon Willmetts walks listeners through the founding of the CIA, its successes, controversies, portrayal in media and film.

Talking about suicide is important, but anything but comfortable. To make this difficult subject easier for students and staff to discuss, the university is organising a campaign week in line with the national campaign ‘1K Z1E J3’ (I see you) being run by Stichting 113 Zelfmoordpreventie (113 is the…

A group of astronomers led by Leiden PhD student Sebastian Zieba has discovered using the James Webb Space Telescope (JWST) that the rocky exoplanet TRAPPIST-1 c has a thin atmosphere. Although the planet is nearly identical to Venus in size and temperature, and was expected to have a thick atmosphere,…

Minister Robbert Dijkgraaf (Education, Culture and Science) spoke with lecturers and students from Leiden University at Campus The Hague on 27 October about the impact of the Israel-Hamas war. He wanted to know how the conflict was affecting the academic community. Lecturers and students shared their…

Friday 4 November marked the 65th anniversary of the founding of Leiden’s P.C. Hooft Historical Debating Society. Although new members have not been accepted for several decades, the society is still alive and kicking. A retrospective with former presidents Jos Hooghuis and Saskia Leupen.

Anyone who knows Aris Politopoulos will be aware of his passion for teaching. Almost winning the Leiden University Teaching Award in 2020, he is known for his use of digital tools to improve his classes. Now he has been accepted to the Leiden Teacher’s Academy. ‘Here I can meet people with innovative…

Francesca Albanese, UN Special Rapporteur for human rights in the occupied Palestinian territories, visited Leiden Law School on 8 December within the scope of International Human Rights Day.

On Saturday 25 June, the Europa Institute of Leiden University hosted the 61st Leiden-London Meeting, an annual event organized jointly by the Europa Institute and the British Institute of International and Comparative Law (BIICL). This year’s meeting had “Interdependence, cooperation and strategic…

As an experiment, student Alicia Cai relied solely on AI tools such as ChatGPT and Claude for supervision while writing her thesis. What lessons were learned?

By chance, computer scientist Hans-Dieter Hiep (Leiden Institute of Advanced Computer Science and Centrum Wiskunde & Informatica) discovered a ‘gaping hole’ in a widely used method for evaluating software security. Hiep patched the hole, causing quite a stir in his field. 'It’s not pleasant when a PhD…

The antibiotic EVG7, developed in Leiden, has proven capable of fighting the dangerous gut bacterium C. difficile with only a minimal dose. What’s more, the bacterium is far less likely to return, a major issue with existing antibiotics. The research was published in Nature Communications.

PhD candidate Karen van den Akker has written a children’s book to get young girls excited about technology. The picture book ‘Met mama naar Mars’ tells the story of Luna, who wants to travel to Mars.

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

The Executive Board has reappointed Professor of Algebra and Number Theory Bart de Smit as vice-dean at the Faculty of Science. De Smit had already held this position since the beginning of 2019. His term has been extended by four years until the end of 2026.

Leiden Law School takes great pride in announcing that the University of Strathclyde has bestowed an honorary doctorate on Professor Ann Skelton, Professor of Children's Rights in a Sustainable World at Leiden Law School and Chair of the United Nations Committee on the Rights of the Child. This prestigious…

Where to study ’politics’? According to the QS World University Rankings, Leiden University is a good choice. In the 2021 edition, Leiden and The Hague retain their position in the top 25 of the most esteemed institutes worldwide. Within the Netherlands, we again claim the first position.

Nicolette Heijkant is our guest on the latest episode of Leiden Lawcast. Heijkant is an experienced lawyer who won her spurs working in the legal profession in Amsterdam’s business district, the Zuidas, and is now working for a legal-aid practice in Brabant. In this episode, we speak to her about her…

Education, Organisation

Are you an interdisciplinary researcher working on or with heritage? Do you struggle with faculty fragmentation and finding relevant colleagues to collaborate with? How can we at Leiden facilitate interfaculty knowledge exchange? These were some of the questions which inspired eight Leiden University…

Since November 2022, Veronica Tamorri has been a new face at the Faculty of Archaeology. Originally from Rome, she joined the Faculty with a two-year Marie Skłodowska-Curie post-doctoral fellowship. Here she is studying human remains from early Egypt and Nubia (Sudan) using bioarchaeological methodologies.…

Memorandum of Understanding Signed Between the Child Friendly Justice European Network and Leiden Law School - Child Law Department

Facility, Social

The family of the famous diplomat, sinologist and writer Robert van Gulik has donated his personal archive and part of his collection to Leiden University Libraries (UBL). The collection and archive provide insight into the life and work of Robert van Gulik, who became known to the general public for…

Smiling faces, sweltering heat and a record-breaking donation – that was the Leiden Science Run 2025. On Saturday 21 June, the Leiden Bio Science Park turned bright orange as enthusiastic runners completed 4.5 kilometres to support research for vulnerable children.

Neat strips of grass and perfectly manicured flowerbeds may look green and inviting, but they’re often not the best for nature. That’s why Leiden University is prioritising a comprehensive biodiversity plan over conventional greenery at the Leiden Bio Science Park (LBSP).

Leiden University has taken eighth place in this year’s SustainaBul, the sustainability ranking for universities and universities of applied sciences in the Netherlands. It was in 18th place last year.

Only the fittest cyclists stand a chance of taking yellow in the brutal Tour de France. Team Jumbo-Visma is working with data scientists from Leiden. They have analysed the stages and performance of Jumbo-Visma’s riders in previous Grand Tours. And they are researching how to determine the fitness level…

The BA Religious Studies programme has been awarded the label 'Topopleiding' (Top Education) in the Keuzegids 2021.

Siemens recently took over the Leiden software company Culgi, founded by professor and inventor J.G.E.M. (Hans) Fraaije. We spoke to him about the algorithm that made him successful, the role of a university in our society and his ambitions at Siemens. ‘I was looking for Siemens, and they were looking…

Yeast, alpacas, and antibodies. They may seem unrelated, but within the project of the Leiden iGEM students, they come together perfectly. For the international synthetic biology competition iGEM, the team is working on an innovative method to produce nanobodies—a special form of antibodies—using brewer’s…

Leiden patriot Pieter Vreede fought for greater popular influence. Historian Dirk Alkemade reveals how this pioneer used radical means to shape Dutch democracy.

Organisation

On 7 and 8 November, we celebrated a special milestone during the graduation ceremony for the bachelor’s students in Law, Notarial Law, Tax Law and Criminology.

Few people would associate the name Anton de Kom with Leiden. Yet the Surinamese freedom fighter is the subject of an exhibition at Museum De Lakenhal.

Identifying pathogens with a mobile testing kit, even in remote areas. Rapidemic, a student team of Leiden, are trying to make it possible. Now, they moved on to the finals of the Most innovative student of the Netherlands.

Most young alumni who graduated during the COVID-19 pandemic did not get a graduation ceremony, nor did they have the chance to sign their name in the Sweat Room. Thanks to the Alumni Office, they now have the chance to do so after all.

Social

The Leiden African Studies Assembly (LeidenASA) held its Annual Meeting on 12 December. LeidenASA is the network of Leiden based Africa-researchers. Fifteen researchers gave pitches on their projects, and sketches of Leiden University's Africa strategy were outlined.

From sponsored runs to festivals and from open days to concerts: Leiden University hosts lots of events each year. We are highlighting six of them for 2023.

3 October University has become something of a tradition: a bit of science among the Leidens Ontzet celebrations. During the new and improved edition, the WetenschapsWarenMarkt (Science Market), visitors spoke to researchers about the nitrogen problem, making organs and the city’s connections with A…

Every year around 8 February, Leiden University, the oldest university in the Netherlands, is celebrating its birthday. Why does the King still receive a telegram on the day of the Dies Natalis? 4 questions on the origins of Leiden University and its traditions for celebrating its foundation day.