The integrity and reliability of academic research are of fundamental importance to the University. All parties, both within and outside the University, must be able to have confidence that our research is conducted in a scrupulous, fair, verifiable, impartial and independent manner.

Historical geographer Marcel IJsselstijn developed a new approach that improves our understanding of how medieval cities were planned. He hopes it will help archaeologists, urban planners and designers address contemporary challenges.

Reaching the end of the academic year, we look back fondly on the symposia, conferences and events that our faculty hosted in the previous months. One such symposium marked the end of the 5-year long research project ‘Putting life into Late Neolithic houses: investigating domestic craft and subsistence…

If your employment ends, you may be eligible for a transition payment. You could use this allowance for education or training, or to make your transition to your next job smoother. Do you qualify for a transition allowance?

The Comenius innovation programme for higher education and universities of applied science gives teachers the resources to implement their vision for education. Every year, the programme creates the conditions for a wide range of teaching innovations to flourish. The government’s aim with this programme…

On this page you will read all about the Kiem funding tool.

If you are unable to come to work due to sickness, find out below how to report sick and how the University guides its employees on sick leave.

Conference

An inspection and feedback session for exams offers students an important occasion to receive feedback and gives them insight into their learning process.

Study information, Graduate School

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.

Conference

In memory of Harold Linnartz (1965–2023), Professor of Laboratory Astrophysics at Leiden University, a special Festschrift has been published. The volume brings together contributions from colleagues and offers a rich portrait of Linnartz’s scientific influence and his significance for astrochemistr…

We provide answers here to some frequently asked questions about collaborations with the fossil fuel industry.

With a full auditorium at the university's Wijnhaven campus, an extensive programme, inspiring speakers and visitors from a wide range of disciplines, all the ingredients were in place for a successful second edition of the Nacht van de Digitale Veiligheid of Digital Security on 26 May 2026.

Organisation

From peace missions and military intervention to climate adaptation and geopolitical competition, students of the Advanced MSc in International Relations and Diplomacy (MIRD) showcased the results of two years of intensive research at the annual Thesis Symposium on 22 May 2026.

Drones zijn in korte tijd onderdeel geworden van het dagelijks leven. Ze worden gebruikt door hobbyisten, bedrijven, politie en defensie. Tegelijkertijd groeit de zorg dat dezelfde technologie ook kan worden ingezet door kwaadwillenden. Onderzoeker en promovendus Stijn Willem van 't Land zocht dit u…

Astronomers have discovered an enormous supply of cold molecular gas in a galaxy shortly after the Big Bang. The finding offers a rare glimpse of the raw material from which the first large galaxies were built. Measurements suggest that around 95 per cent of the normal matter in the galaxy studied,…

Research, Didactics, Career development

An exam file contains all relevant information about an exam or assignment and must be kept according to legal guidelines. This page provides the procedures for archiving exam files and the responsibilities of the examiner.

Leiden University is committed to making your work safe, healthy and enjoyable.

Collecting personal and sensitive data is not as common an issue in archaeological research as in some other fields such as sociology and political sciences which is often the reason why archaeologists might not be aware that they are handling those types of data.

On 27 May 2025, the Executive Board decided to establish a Committee on Human Rights / Conflict Zones.

Conference

Below you will find an overview of the laws and regulations you need to take into account when teaching at our faculty.

Research, Transferable skills

Research, Transferable skills

Over a thousand women ended up in a State workhouse between 1886 and 1934. This was a place for vagrants, beggars and drunkards: people who were said to be too lazy to work. Who were these women who were sent there? PhD candidate Marian Weevers found out.

Last weekend, all university buildings were closed and the university systems were unavailable. The reason for this was the major maintenance of the university network. The network’s core needed to be shut down for this, including all supplies and services. A large group of staff from ISSC as well as…

Dutch citizens are not opposed to additional earnings and financial gifts for people on welfare, but believe it is important that there should also be an obligation to look for a job. This was the outcome of a research project on the opinions of Dutch people regarding the implementation of welfare p…

Maak kennis met digitale veiligheid in de podcast over de BSc Cybersecurity & Cybercrime. Experts bespreken actuele thema’s zoals ransomware en online fraude.

Women confined to the kitchen? Not in Scheveningen around 1900. There, some women ran entire shipping companies. This is according to new research by history student Sjors Stuurman. He compiled the results in a book he wrote for Muzee Scheveningen.

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.

As part of the final project for the Islam in South and Southeast Asia course (taught by Dr Verena Meyer), students were tasked with creating podcasts that delve into significant cultural and historical topics related to the region. Two students, Roma Bhiekhemsing and Shaneeva Bean, have chosen to share…

Who assembled the collections of museums? The answer to this question seems to point to men as collectors. Apart from for rare exceptions, female collectors hardly seem to exist. Yet there were indeed women collectors. For the project Museums, Collections and Society, researcher Holly O'Farrell will…

A presentation on the latest developments in artificial intelligence and law, several public lectures on Criminal Justice, and a brand new trial in which Leiden female serial killer ‘Goeie Mie’ was acquitted after all. It was all possible during Leiden European City of Science 2022. Below is an overview…

In Ancient Egypt, prominent families engaged in ancestor worship to maintain their high standing. Renata Schiavo researched this link between religion and power for her PhD. ‘People were afraid that their ancestors would bring misfortune if the family’s prestige declined.’

Each year, the Faculty awards two Meijers PhD positions to talented researchers. One position is open to participants from the Pre-PhD Programme (PPP) and one position is open to other candidates from inside and outside Leiden University.

More than 40 years ago, a wrecked merchant ship was found in the Wadden Sea. PhD student Geke Burger looked at this archaeological find from a historical perspective.

Although it can be a challenge at times, parents should keep communicating with their teens. Also about how they parent. Research by developmental psychologist Loes Janssen shows that parenting can be perceived quite differently by family members and mood plays an important role. Parents often parent…

They are big and white, devour energy and could be gathering dust in your department: old, faulty or unused fridges are anything but sustainable. This spring, staff from the Faculty of Humanities swapped 18 of these electricity guzzlers for more energy-efficient models. How did they go about this and…

The Netherlands returned 478 artefacts to Indonesia and Sri Lanka this week, on the advice of a Dutch committee. Rightly so, says Leiden professor Pieter ter Keurs from the Museums, Collections and Society interdisciplinary research programme. ‘But do make it clear why you are returning something.’

The Dutch East India Company (VOC) took healthcare seriously, albeit mainly for business reasons. Former GP Ton Zwaard’s PhD research reveals that although healthcare in Asia was well organised, the VOC faced persistent problems for two centuries.