President Zelensky of Ukraine has asked the UN International Court of Justice to issue an urgent order to stop Russian military activity in his country. According to Zelensky, Russia has twisted the concept of genocide to justify aggression.

Everyone has been watching the attack on Ukraine, a war on the European continent, with a sense of foreboding. It will bring devastation, loss, suffering and worry and it raises questions. With these words, Rector Magnificus Hester Bijl opened the meeting on the war in Ukraine at Wijnhaven on Thursday…

Claartje Levelt is professor of First Language Acquisition. She researches how babies and toddlers learn their mother tongue. Besides her work, she enjoys being involved with music.

From the effects of hormone fluctuations in women via the interior structure of giant planets to the prehistory of the languages: six Leiden researchers have been awarded a Consolidator Grant by the European Research Council.

Museums have long focused on power, wealth and a few famous figures. But that is changing, says Valika Smeulders, head of the history department at the Rijksmuseum. What this change comprises and how it has come about is the subject of her keynote speech at the D&I Symposium on 11 January.

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

The war in Ukraine is entering a new phase with the announcement of a partial Russian military mobilisation and the intention to annex four Ukrainian regions. Why is Putin making these decisions just now and what consequences will they have for the course of the war? We talk to professor and Russia…

Samen met andere studenten bracht Fien Lurvink hulpgoederen naar Oekraïne en nam vluchtelingen mee terug.

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.

Many of the language rules we use today were formulated in the 17th and 18th centuries. In a dual track at the universities of Leiden and Brussels, PhD candidate Eline Lismont investigated why some rules became successful while other rules were quickly forgotten.

The thermostat in Leiden University’s buildings will be turned down by two degrees. The temperature will also be adjusted in rooms that are cooled. This is the University’s response to the government’s call to use less energy.

Anneleen van der Meer discusses Russia's alleged use of chemical weapons in Ukraine in an article for The Conversation.

The GDPR privacy legislation is no impediment to handing out sanctions to Russian oligarchs or reuniting children placed in care with their parents, says privacy experts Anna Berlee, Marlies van Eck, Simone van der Hof, Simone Huting, Friederike van der Jagt and Jeroen Terstegge.

Four years of war in Ukraine have transformed the nature of warfare, with drones, digital defence systems and improvised solutions shaping the battlefield. At a recent symposium, Dutch and Ukrainian experts discussed frontline conditions. What lessons do they see for Europe?

During the New Year’s reception of the Faculty of Social and Behavioural Sciences (FSW) on 12 January 2026, Sarah de Rijcke said farewell as our dean. She will become the new Rector Magnificus of Leiden University. It was not the only change of leadership announced that afternoon.

How to reduce aggression when two parties are at odds? PhD research by psychologist Lennart Reddmann's shows that it can help to offer them a peaceful alternative. However, the attacking party benefits the most from such a solution.

Ward Hoskens started ten years ago as an intern at one of Leiden's most iconic buildings: the Pieterskerk. Now he is doing his PhD on the question of how the function of this 'church that is no longer a church' changed over recent centuries.

Many PhD candidates, as well as research master students at the Faculty of Humanities, are members of a research school related to their area of expertise. Research schools aim at the collaboration of researchers from different faculties in the same university (interfaculty schools) or in different…

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Degree programmes must be assessed and accredited once every six years to ensure they provide a high standard of education. You may be asked to speak to the assessment panel.

Lecture

Now that war is once again raging in Europe, the question of when you need to stand up against injustice has become more relevant than ever. In his Cleveringa lecture on 24 November historian Gert Oostindie will discuss why colonial domination was not regarded as an issue in Leiden for a long time.

Introducing prof. Scott Nelson, the Legum Professor of the Social Sciences at William and Mary, and on the spring exchange at the University of Leiden.

2024 was an eventful year for the Faculty of Humanities. Despite becoming the centre of political discussion and budget cuts as faculty ourselves, exceptional research projects were carried out and new initiatives were launched.

Eva Michaels talks about the current international security environment, including intelligence issues with Sir John Sawers in an interview in El País.

Six programmes in the Faculty of Humanities have been awarded the designation 'top programme' by the Keuzegids. These are the bachelor’s in German Language and Culture, Greek and Latin Language and Culture, Latin American Studies, Ancient Near East Studies, Religious Studies and Russian Studies.

Wereldwijd worden veel samenwerkingsverbanden met Rusland stopgezet vanwege de oorlog in Oekraïne. Hoe zit dat met de ruimtevaart, waar de Russen ook een groot aandeel in hebben?

Missiles that travel at approximately six thousand kilometres per hour, up to 5 or 6 times the speed of sound. Has Russia used those against Ukraine and how is that possible? In Leiden University’s Dutch video series ‘De Werkplaats’, Danny Pronk, political scientist, security expert, and researcher…

Assistant Professor of European Studies and International Relations Daniel Schade was a guest on Deutschland Heute on Deutschlandfunk and spoke about the recent Schengen evaluation report by the European Commission.

Pavel Durov, CEO of chat and messaging app Telegram, was arrested in France last week. The Russian tech billionaire flew into Paris by private jet and was arrested on suspicion of cybercrimes. Telegram allegedly facilitates criminal activities such as money laundering. This raises the question of how…

From an emergency fund for Ukrainian students to a golf tournament for cancer research at the LUMC: the Leiden University Fund (LUF) crowdfunding platform is full of fantastic projects that enrich the university. If you are looking for funding for your idea or special project, crowdfunding may just…

This year on June 8-12, the Annual Convention of the Austrian and Central European Centres was organised in Leiden. At this convention, directors and (PhD) students from all over the world come together to meet, have presentations by the students on their topics of expertise, and to get the know the…

PhD defence

Are we going vegetarian this year? Shall we keep the dessert the same? Where do I find inspiration for a festive meal during the holidays? For readers who like to postpone these questions, for those who like to tell a good story with their culinary contribution, or for those who simply want to know…

In an essay published in three prominent European newspapers, Professor Luuk van Middelaar takes a close look at Europe’s role in the Russian invasion of Ukraine. ‘Europe shows plenty of political energy, but what is still lacking is strategic cool-headedness, in facing a nuclear power.’