Over the past year, Leiden University’s 450th-anniversary celebrations brought together students, staff, alumni, partners and the residents of Leiden and The Hague. Join us as we look back on the highlights.

In 1986 a group of international human rights experts convened in Maastricht to discuss the character and scope of state parties’ obligations under the International Covenant on Economic, Social and Cultural rights. This resulted in the Limburg Principles on the Implementation of the International Covenant…

This year Leiden will be celebrating the 450th Relief of Leiden. Leiden master’s students are researching this history as part of the ‘Traces of 3 October’ project.

PhD Programme of the Institute for History

After a turbulent Covid year, the well-being of our students and staff has the highest priority. How can we prevent physical and mental health problems? This was the key question at the Opening of the Academic Year in Pieterskerk in Leiden on 6 September.

In otherwise energetic desserts at the bottom of the sea, researchers have found oases where microbes can harvest energy. Remarkably, the microbes first have to be buried under starving conditions for 80,000 years. An international group of researchers, amongst them José Mogollón from the Insitute of…

On 25 September 2019, Luuk Esser defended his thesis 'De strafbaarstelling van mensenhandel ontrafeld'. The doctoral research was supervised by Prof. C.P.M. Cleiren and Prof. J.M. ten Voorde.

On 10 June 2021, Merinda Stewart defended her thesis 'Freedom of Overflight: A Study of Coastal State Jurisdiction in International Airspace'. The doctoral research was supervised by Prof. P.M.J. Mendes de Leon en Prof. J.J. Rijpma.

Find out where you as a staff member or manager can turn for support or a good chat.

ABPP2027 will be held in Naturalis, Leiden, The Netherlands.

MHC class I and MHC class II molecules present peptides to the immune system to drive proper T cell responses. Pharmacological modulation of T-cell responses can offer treatment options for a range of immune-related diseases.

In the globalised world of today, traditional definitions of national Self and national Other no longer hold. The unmistakable transformation of German and Dutch societies demands a thorough rethinking of national boundaries on several levels.

On Wednesday 25 January 2017 Esmeralda Vergeer will defend her doctoral thesis Regeldruk vanuit een ander perspectief (Regulatory burden from a different perspective). The supervisor of the research is Professor W.J.M. Voermans.

There are different ways in which the faculties of Leiden University keep in touch with their alumni.

On 25 August 2018, the Leiden Adv. LLM Study Programme in European and International Business Law (EIBL) celebrated 25 years of its existence.

The opening of the new academic year highlighted students' and lecturers' personal motivators. Incoming students were encouraged to be bold, forge their own paths and grow by trial and error.

This year, The Hague Journal of Diplomacy celebrates its 15th anniversary! In our infographic below, we summarize 15 years in numbers.

Christa Tobler writes an extensive article on voting rights for different groups for the annual congress of the

Work out more, eat healthier, have more time to yourself: we make resolutions every year, but they often don't make it past the end of January. To help you succeed this year, we have compiled a list with New Year's resolutions you can put into practice at the University!

The Hague Journal of Diplomacy - quantified! In our infographic below, we summarize the past 19 years in numbers.

The Hague Journal of Diplomacy - quantified! In our infographic below, we summarize the past 20 years in numbers.

The Hague Journal of Diplomacy - quantified! In our infographic below, we summarize the past 17 years in numbers.

The Hague Journal of Diplomacy - quantified! In our infographic below, we summarize the past 18 years in numbers.

At the first Climate Café of 2025, we celebrated the one-year anniversary of The Hague Climate Agreement and reflected together on the successes and opportunities for the future.

In exactly 450 days’ time, on 8 February 2025, it is the university’s 450th anniversary. We are going to celebrate this with our students, staff, alumni and friends. In the run-up to the anniversary, we are compiling our top 450: Who or what is your favourite?

The Leiden Papyrological Institute celebrates its 90th year anniversary

Mathematician Robbin Bastiaansen, physicist Irene Battisti, pharmacist Fouzia Lghoul-Oulad Saïd and physics and astronomy student Maite Boden are the winners of the annual prizes of the Faculty of Science. Boden was honoured as the first Young Star, a new prize for the best bachelor’s student of the…

By looking at what is different, researchers often discover the special, the unusual. And that has already brought a wealth of highlights – also in Leiden.

They have known each other since they were small but Rianne and Tom first fell in love when working together at the university. That love culminated in a fairytale wedding amid all the revelry last 3 October.

The theme of the Opening of the Academy Year on 4 September was sustainability and how the university could take the lead as a change agent. How is it going about this and what else can it do? There was also room for a critical note.

News from Food Citizens? Winter School alumnae

That's just learning parrot-fashion. This was the argument with which the proposal to establish a language lab at Leiden University was rejected in 1962. But six years later, the language lab was launched. And now the Academic Language Lab is celebrating its 50-year anniversary.

On 15 May 2025, a roundtable '80 Years of Peace in Europe?' was convened with students and staff at Leiden University to reflect on the anniversary of the end of World War II.

On this page you can learn more about the history of our Faculty Awards and view the previous winners.

The social sciences are vital in navigating complexities, fostering understanding and bridging divides. This was celebrated during the faculty opening of the academic year.

Floreat et crescat. Flourish and grow. That was what was wished for the Mathematical Institute at its opening. Now, the institute proudly celebrates its 70th anniversary. Time to reflect on how it all began. And importantly, how is it doing now?

Research by The Young Academy on the length and intensity of the Dutch academic year has given us food for thought. Do our staff have enough time and space to conduct research? And do we ask too much of our students? The Ministry of Education, Culture and Science asked us universities to think about…

In a full lecture hall C1 the Faculty of Science started off the new academic year on Tuesday 5 September. The theme of the meeting was, just as it had been at the university's opening the day before, sustainability.

Information about the situation in Ukraine

In this research line, the role pharmacological agents and neurochemcial processes play in behavior and cognition is examined with a particular focus on pain, placebo and nocebo effects and intensive care treatments.

The two-year MA in Chinese Studies, a specialisation of Leiden University’s master's in Asian Studies, combines content courses with intensive and advanced language training, outstanding teaching, and extensive library resources to bring you the only qualification of its calibre offered in the Nethe…

On the 6th of December, Buurtlab 070 and the Leiden University Green Office (LUGO) hosted an event at the Spinozahof in the Stationsbuurt, bringing students and local residents together to explore energy (in)justice through the serious game Sunjust.