This page provides information about what to do if you suspect a fellow Leiden University student or staff member of violating the principles of academic integrity.

The academic year officially commences on 1 September and ends on 31 August. Take a look how the year is organised and on which days the university is closed.

The academic year officially commences on 1 September and ends on 31 August. Take a look how the year is organised and on which days the university is closed.

You are a part of our academic community. Here at Leiden University, we pride ourselves on our motto Praesidium Libertatis – bastion of freedom – and cherish the tradition of academic freedom.

The academic year officially commences on 1 September and ends on 31 August. On national holidays and compulsory closure dates, the university is closed and no lectures take place.

The academic year officially commences on 1 September and ends on 31 August. On national holidays and compulsory closure dates, the university is closed and no lectures take place.

The academic year officially commences on 1 September and ends on 31 August. On national holidays and compulsory closure dates, the university is closed and no lectures take place.

The academic year officially commences on 1 September and ends on 31 August. On national holidays and compulsory closure dates, the university is closed and no lectures take place.

This page provides information about what to do if you suspect a fellow Leiden University student or staff member of violating the principles of academic integrity.

Find out how to access your personal timetable, the dates of the academic year, and when Leiden University is closed for public holidays.

The people who lived in Saqqara, City of the Dead in Egypt, died thousands of years ago, but they are not all that different from us. This is what a study by the National Museum of Antiquities in Leiden, The Netherlands concludes. If you wanted to prove that you had good taste in ancient Egypt then…

The mission in Uruzgan Province in Afghanistan was a formative experience for Dutch soldiers in which many lessons were learned. But most of those lessons have already been forgotten.

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.

It was long thought that the early development of Japanese children's books served mainly as a propaganda tool of the state: the literature was supposed to have been written to shape children into perfect citizens. PhD student Aafke van Ewijk nuances this image. Children's book writers wanted to have…

Senior university lecturer Willemijn Waal was quoted in a National Geographic Portugal article about Hittite culture.

When we think about ancient Egypt, the first things that come to mind are usually mummies and sarcophagi. According to researcher and Rijksmuseum van Oudheden curator Lara Weiss, that impression is unjustified. She made an audio tour for the Rijksmuseum van Oudheden that focuses on living Egyptians…

LUC historian Jacqueline Hylkema unmasks forgeries from the early modern Dutch Republic in the research project "Mapping the Fake Republic".

Connecting worlds, enhancing research and teaching, and providing innovative solutions to complex social issues: that is the idea behind interdisciplinary research. In that respect, a huge amount happened at Leiden University in 2023.

In Sci-Fi comic book Resist NOW!, wondrous adventures will illustrate possibilities to combat antimicrobial resistance. But the comic book will only be produced if enough money is raised to make the project into reality.

Sex and power are closely linked, and this was certainly true in the former Dutch colonies. PhD student Sophie Rose investigated how sexual and love relationships influenced eighteenth-century power structures there. 'You can see that there was constant fighting over who stood where in the social hi…

In Bronze Age Europe many bronze objects such as axes, swords and jewels were deliberately left at specific spots in the landscape. PhD research by Leiden archaeologist Marieke Visser shows that these practices were expressions of people’s relationship with the world around them. ‘It was a completely…

Wil Roebroeks was part of an international research project examining turtle shells from Neumark-Nord. The 92 shell fragments were carefully and thoroughly cleaned by Neanderthal hunters about 125,000 years ago. It is likely that they were not hunted for food but for the shells themselves as the site…

The decolonisation war in Indonesia was violent partly because the Dutch military operated on the conviction that ‘an uprising had to be forcibly suppressed.’ This what historian Christiaan Harinck from the KITLV discovered in his PhD research.

Since mid-January, Leiden University has had a new Executive Board. What are their impressions and their plans? An introduction in two parts.

Connecting scientific fields, enhancing research and teaching, and providing innovative solutions to complex social issues: that is the idea behind interdisciplinary research. What did the university achieve in 2024? A small sample.

As a result of the current corona measures, attendance at the Opening of the Academic Year on 6 September will be restricted to a maximum of 75 persons. The ceremony can, however, be viewed online by taking part in a video wall.

Astronomers led by Simon Portegies Zwart used simulations to reconstruct how three stars were ejected from the star cluster R136, 60,000 years ago. The analysis reveals that five stars were involved in the event in the Tarantula Nebula.

The war between Ukraine and Russia is playing out not just on the battlefield but also on the geopolitical playing field of gas. Conflicts at the start of this century about this energy source were, says PhD candidate Ilia Barboutev, a precursor to today’s war.

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’.

Leiden PhD candidate Jo-Anne Verschoor discovered that nearly twenty percent of the bacterial strains she studied could degrade plastic, though they needed some encouragement to do so. ‘Bacteria are just like people,’ says Verschoor. Her research was published in the journal Communications Biology,…

Today, anyone wanting a new look for their living room watches a home decorating programme or buys an interior design magazine. In the eighteenth century, people went to an upholstry specialist, who would provide you with new wall coverings, curtains and much-needed accessories. PhD candidate Aagje…

Historian Eric Storm discusses how nationalism shapes our world in Princeton’s UP Ideas podcast.