What do bats do at night when they’re not hunting? Using tiny GPS trackers, Leiden researchers discovered that pond bats spend a substantial portion of the night resting – often outdoors. This surprising insight could change the way we protect them.

In a packed lecture hall at Wijnhaven, Nobel Prize winner Paul Krugman succinctly summed up the essence of his argument on Wednesday 17 September: ‘Running a good society is hard’. His lecture held up a mirror to economists and policymakers.

Twenty years onwards, in a review of an Escher exhibition in Italy, Nature Physics writes about it again: Leiden mathematicians helping Escher out. A reconstruction of how emeritus professor Hendrik Lenstra tracked down a 44-year-old problem.

Fourteen of the candidates for the European parliamentary elections on 23 May studied at Leiden University. We ask four of them about their motivation and ambitions. In this article: Conny van Stralen, who studied German, and Maurice Hoogeveen, who studied history.

Tom Long (2022). A Small State’s Guide to Influence in World Politics. Oxford University Press. ISBN: 9780190926212, 240 pp. (hardback), £19.99.

After two years of corona restrictions, it was ‘back to normal’ in 2022. Migration, elections, the history of slavery, Russia, and Ukraine were much-discussed topics. We compiled an overview of the most-read news items and other events of the past year.

Jan Joosten studied civil and tax law in Leiden from 1985. After exchanges and an internship, he became infatuated with the United States. He is now a partner and co-founder of a new law firm in New York: Pierson Ferdinand.

In November of last year Global Interactions made offers to five out of nearly 90 applicants for our grant-writing postdocs. We are pleased to announce that all have accepted and will be joining various Leiden institutes this year. The five postdocs are Katia Hay, Johannes Müller, Maria-Paz Peirano,…

The much-discussed documentary 'Cobblestone Stories' by American anthropologist Mark Neupert can be seen in Leiden's Trianon cinema on 23 April. In an interview published earlier on this site Neupert explained what makes Leiden so special for him. 'The idea is to show my American students that there…

There is a real chance of war closer to home, political and military leaders in Europe have warned. What does Frans Osinga, Professor of War Studies, think about the threat and what we should do?

Permission was recently given for all members of the examining committee and co-supervisors at PhD ceremonies to wear academic dress, even if they’re not full professors. How historic is this change?

Providers of telephone, internet or data centers can be seen as companies of vital importance because of their national importance. This comes as no surprise. In the Netherlands, additional legislation was deemed necessary to protect national security and a legislative proposal was presented in April…

Many Humanities scholars keep a blog of their own. This summer, we’re putting these in the spotlight. For this week’s interview, we sat down with dr. Florian Schneider of the Politics East Asia blog.

Donald Trump was sworn into his second period as President of the United States on 20 January 2025. Since then, the Trump administration has raised alarms for people around the world who are concerned over what this will mean for the current geopolitical landscape. Join a panel of experts to discuss…

Nanodiamonds and charcoal in Dutch soil provide no evidence for the alleged impact of a meteorite at the end of the last Ice Age. This is the conclusion of a research done by Utrecht University in collaboration with Leiden University and the University of Groningen.

Archaeologist Jason Laffoon was awarded an NWO Vidi grant for an innovative investigation into ancient migrations in the western Caribbean. The innovative character of this research project lies in the wide-scale application of isotope analysis and isotope mapping. ‘We aim at further developing methods…

Yusen Yu wins the prestigious Graduate Student Prize of the Middle East Medievalists (MEM) with his article

Every Political Science master’s student at Leiden University completes their degree with thesis. The thesis provides students with the opportunity to pursue a topic of their choosing in depth and conduct independent research. It is a demanding task that requires dedication, attention to detail, and…

Leiden biologist Suzanne Lommen and an international team of scientists have investigated how a beetle can reduce hay fever in Europe. Locally, the beetle is even able to stop pollen production in a plant that causes allergic reactions. Publication in Nature Communications on April 21.

Despite being prohibited by law since 1971, race discrimination continues to exist in the Netherlands. Why is this?

Master’s student of Linguistics Marten van der Meulen helped organise the Massive Open Online Course (MOOC) Miracles of Human Language, which ran from 30 March until 11 May 2015. What was it like for a student to organise an MOOC? And what did he learn from it?

Many members of Chicago's P'urhepecha community did not even know they lived a stone’s throw from some of their own historical heritage. Researcher Kate Bellamy organised a meeting to introduce them to books hundreds of years old.

Linguist Sara Petrollino has written the first detailed grammar of Hamar, a language spoken in south-west Ethiopia that has some unique characteristics. PhD defence 10 November.

Experiencing what it is like to attend a lecture, asking professors questions and even trying your hand at homework: Experience Days help prospective students learn more about all the programmes offered by the Faculty of Humanities.

The Faculty of Humanities has been ranked 17th Arts and humanities faculty in the Times Higher Education world ranking 2015-16. This makes it the top non-Anglo-Saxon institution on the list. The position is 7 places up in comparison with last year's list.

University lecturer in Chinese and Comparative Philosophy Jingjing Li has been awarded a Veni grant for her research on feminist theories within the Buddhist philosophy of consciousness-only. Jingjing Li explains her plans and the importance of her research.

On Wednesday, 21 February, a diverse group of students, staff, and representatives from 21 embassies gathered in The Hague for International Mother Language Day. Under the banner of 'a bit of fun and many serious topics,' language took centre stage.

Research into 25 years of lethal violence in the Netherlands and into language socialisation of deaf families in Africa will receive grants from the Leiden University Fund (LUF).

Frederica Mogherini, Rector of the College of Europe, visited Campus The Hague on 23 November for the official launch of the Europe Hub. This new interdisciplinary platform for research and teaching at Leiden University focuses on the social and governance challenges facing Europe.

On Monday 11 February, the first issue of the Journal of the LUCAS Graduate Conference went online officially.

Higher temperatures are resulting in changes to vegetation and soil in mountain areas throughout the world. An international research team including Leiden ecologist Ellen Cieraad published an article on 25 January in Nature on the disruption to the ecosystem.

The precolonial inhabitants of the Caribbean islands communicated, travelled, and exchanged objects and ideas along an expansive inter-island network. New methods of computer modeling shed light on these networks. Emma Slayton is set to discuss her work on this topic at her Defense on the 12th of Se…

In July 2023, Leiden University conducted another phase of its ongoing archaeological collaboration with the Kalinago Territory in the Caribbean island of Dominica. Activities focused on mapping and assessing coastal sites impacted by climate stressors, undertaking knowledge-exchange sessions, and co-creating…