The winner of this year’s Iris Medal for Excellent Science Communication is Professor of Science Communication Ionica Smeets.

Festival

Showing your face at dinners and parties at court: it was the way to get noticed by the king in William I's time. Joost Welten's latest book reveals how, during the reign of William I, the elite danced around his throne both literally and figuratively.

Since the demonstration over a year ago on the Wijnhaven campus, Leiden University has developed plans and initiatives to create the safest possible work and study environment for our university community. The Executive Board would like to explain what has happened since and what else we can expect…

People in the Early Bonze Age used bronze artefacts as a means of payment. This is the conclusion reached by archaeologists Maikel Kuijpers and Catalin Popa in a PLOS ONE article published on 20 January.

There should be more social meeting places on our campus. That's one of the outcomes of to the second brainstorming session on the strategic plan. On Tuesday, education and the campus took centre stage during the meeting in Corpus. Professor and programme director Miranda van Eck and student assessor…

Yuchen Lian defended her thesis on AI and language evolution at Leiden University.

Lecture

Lecture

Lecture

Lecture

Lecture, Histories Connected: Work-in-Progress

The Economics Department at Leiden University is pleased to announce a junior workshop focusing on The Economic, Social and Political Effects of Migration, which will be held Friday 19 April 2024, at the Gravensteen in Leiden.

It is a full classroom: more than 30 pupils from 5 and 6 vwo are present to listen to political scientist Leila Demarest's lecture. She gives a brief introduction on the topic she is about to discuss: democracy in the global North and South. At first, the group seems a bit quiet, but when she asks questions…

Lecture

Social media gives people a voice but also fuels online hate, especially against marginalised groups. PhD candidate Eva Nave: ‘While end-to-end encryption protects activists, it also enables criminal activity, creating a more accessible version of the Darkweb.’

Marieke Liem, professor at ISGA, discusses how the number of drug-related murders has not decreased in the last years

It increasingly seems that Elon Musk has taken it upon himself to decide what can and cannot be said on Twitter. He bought the platform with the message that there would be room to say whatever you desired, but he himself is casting doubts on that principle.

Lecture, Pint of Science

Festival

Study information, On Campus Experience

Study information, On Campus Experience

Martijn Kitzen has been appointed professor by special appointment of Military Science at ISGA on behalf of the Royal Netherlands Society for War Studies (KVBK).

The steady decline in lethal gun violence in the EU came to halt in 2012 and some countries, such as Sweden, have even noticed an increase since then. An arms race among drug criminals and an increase in the availability of illegal firearms could lead to more criminal and gun violence. This is one of…

Many children experience trauma and if they are unable to deal with it properly, it can have a huge personal and societal effect. Building resilience in vulnerable children and young people should therefore have the highest priority. This is the message of Anne-Laura van Harmelen, Professor of Brain,…

Carlotta Rigotti and Eduard Fosch-Villaronga have published a new article that offers an insightful and critical literature review on fairness and AI in the labour market as part of the BIAS project.

One of the core concepts of the Master programme Crisis & Security Management (CSM) is ‘governance’. In the course Security Networks and Technology, the focus is on the interplay between various levels of security governance and new technological developments.

People in the Early Bonze Age used bronze artefacts as a means of payment. This is the conclusion reached by archaeologists Maikel Kuijpers and Catalin Popa in a PLOS ONE article published on 20 January. The discovery led to a surge of media reports.

Festival

This September, Adina Akbik received the Political Science Teaching Award at Leiden University. Created by student members of the Bachelor's and Master's Programme Committees (OLC), the award recognises remarkable teaching at the Institute. Akbik was chosen from five finalists after receiving several…

Mensen werken niet alleen liever samen met leden van hun eigen ingroup, ze concurreren er ook liever mee, lieten Leidse onderzoekers in een sociaalpsychologische studie in 51 landen zien. Dit ‘nasty neighbor’- effect was een grote verrassing voor de onderzoekers, totdat ze in studies over dieren doken.…

South Korean smash hit Squid Game is on track to becoming the most successful Netflix production ever. The series is number one in over 90 countries. Professor and Korea expert Remco Breuker can see why South Korean pop culture is becoming so popular, also outside Asia.

The interdisciplinary, English-taught minor ‘Violence Studies’ looks at violence from very diverse scientific perspectives. What are the benefits from this approach? Students and lecturers evaluate: ‘This minor’s a goldmine’.

On Tuesday, November 18, 2025, Ambassador Bert Theuerman (Austrian Ambassador to The Netherlands) hosted a Coffeehouse Discussion exploring the position and impact of women in science and arts at his residence in The Hague.

Lecture, Seminar

KITLV&VVI Research Talk

113 Suicide Prevention gave a guest lecture about suicide prevention at the Spanish Steps in Wijnhaven

Ever since the first edition of the Science Run, the Leiden Student Running Association Currimus has delivered the winning team or the fastest runner. Now the event is back, the new batch of students must uphold the honour. The board is also forming a team: ‘During the upcoming training session, we…

Course

PhD defence

What motivates citizens to participate in a citizen science project on plastic pollution? And does that motivation change over time? Liselotte Rambonnet tried to answer these and other questions with her research on the Clean Rivers (‘Schone Rivieren’) project. Rambonnet is a PhD student at the Institute…

Extremist users of Telegram are moving en masse to other chat apps, such as the anonymous SimpleX. In this way, they hope to avoid detection, now that Telegram founder Pavel Durov is going to share personal data of criminal users with authorities.

Festival