Leiden University is celebrating its 450th anniversary in 2025 with a feast for the eyes, ears and spirit. The anniversary year opens with an extra special Dies Natalis on 7 February. Highlights includes an alumni festival, three exhibitions and a canal concert.

How should we address our colonial heritage? And how digital and accessible are our collections? Outgoing State Secretary Fleur Gräper spoke with researchers and heritage specialists about this on 25 January.

The research suggestions below may be suitable for a bachelor's or master's thesis or can be used as additional source material in ongoing research.

The year 2023 saw the earthquake in Turkey and Syria, the Wagner Group rebellion and wildfires and floods as all the weather records were smashed. Our most-read stories were about the climate crisis and the elections: here’s the list.

The climate crisis, the return of TB and the digitisation of cultural heritage. The Netherlands and Indonesia face many of the same challenges. A visit by a delegation from Leiden University to Indonesia at the end of June highlighted the benefits of cooperation.

In his leaving interview, Martijn Ridderbos doesn’t have to think long when asked what he is most proud of. ‘Bringing people together; creating things together. Reducing the gap between researchers and the staff who support them because the latter are essential. We’ve achieved that and the seeds have…

Leiden University Libraries (UBL) has made 45,000 digitised daguerreotypes, autochrome plates, photo prints, albums, cameras and other objects from its photography collections available through Digital Collections. This means that parts of the oldest photo collection in the Netherlands are now digitally…

The Pilgrims to America exhibition at Museum De Lakenhal inspires reflection. How far do you go in the quest for freedom? It focuses on the Pilgrims’ relationship with the University and which knowledge they took with them from Leiden.

Leiden University contributed to colonialism and slavery through its research and teaching. And governors and residents of Leiden had an active role in colonial networks. These are the findings of two explorative studies presented on 3 April.

Rector Magnificus Carel Stolker will head a delegation that is visiting Indonesia at the end of June. The visit is to celebrate the 50th anniversary of ‘Leiden’ institute KITLV-Jakarta. What does this institute do and why is Indonesia important to the University?

This Subject Guide is designed to support students of Korean studies at Leiden University in their research process. For every step of the research process, this guide introduces a number of tips and recommended resources. You can find several sub-guides and contacts in the 'quick links' in the tab…

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.

This Subject Guide is designed to support students of International Studies with writing their BA thesis and research papers. This guide focuses on the research process, and suggests effective ways to: 1. find a topic and formulate a good research question; 2. search, find and evaluate literature; 3.…

This Subject Guide is designed to support students of Japan studies at Leiden University in their research process. For every step of the research process, this guide introduces a number of tips and recommended resources. You can find several sub-guides and contacts in the 'quick links' in the tab on…

Overview of the Scaliger, Brill, Elsevier, Van de Sande, Juynboll, Drewes, Isaac Alfred Ailion, Arminius, Van Gulik and Lingling Wiyadharma Fellows who have conducted research in the Special Collections of the University Library.