On 16 april 2020, Andrew Fink defended his thesis 'The Importance of Conspiracy Theory in Extremist Ideology and Propaganda'. The doctoral research was supervised by Prof. A. Ellian.

What was the stringed instrument known in medieval and early Renaissance Italy as “cetra”?

'We believe that developing a protocol to help people fight cancer is extremely valuable, given that cancer is such a prevalent and devastating disease. If you believe so too, you can support us in realising this mission.' Master's student in Psychology Saskia Heijnen starts crowdfunding to make her…

China is actively attempting to silence critical voices about the country, including in the Netherlands. This is the main conclusion of a report on Chinese interference and intimidation within the Dutch media landscape. The media are often not well prepared for this.

Until recently, the role of external information processing in intelligence has rarely been investigated quantitatively or experimentally. A group of researchers from Erasmus University Rotterdam, Leiden University, GGZ Rivierduinen, and University of Edinburgh measured in a new way how and when people…

What was the stringed instrument known in medieval and early Renaissance Italy as “cetra”?

What did psychology student Jessie learn while working at a psychiatric hospital in The Gambia? And why is Noman from Yemen now studying political science in Leiden? Thanks to donations from alumni, students have the opportunity to spend time abroad funded by a LUF grant. Jessie and Noman talk about…

Ben Wielstra and his team have received a ENW-M-1 grant. This grant of 354.000 euros is awarded by NWO, and will enable the researchers of the Institute of Biology Leiden and Naturalis to continue their evolutionary newt research.

As per 1 January 2022, Niek Strohmaier has joined Kifid’s Arbitration Committee.

Indigenous Latin American artifacts have attracted the interest of Europeans since the earliest moment of contact between Europeans and the Indigenous peoples of the Americas. The ERC-funded BECACO project uses an innovative multidisciplinary framework to investigate the provenance of ethnographic and…

The World Politics Major at Leiden University College The Hague examines the big ideas and the powerful forces – political, military, economic, social and cultural – that shape the world at every level, from the global to the local and everything in between. Political conflict is a key driver of many…

In this opinion article published in World Development, the authors present five research and policy priorities. While it is clear that ‘pluriversal’ designs need to guide the way forward (Kothari et al 2019), defining a set of key pillars can provide direction and purpose across this pluriversality.…

1000 Years of World History in 100 Old Maps.

The World of the Fullo takes a detailed look at the fullers, craftsmen who dealt with high-quality garments, of Roman Italy. Analyzing the social and economic worlds in which the fullers lived and worked, it tells the story of their economic circumstances, the way they organized their workshops, the…

Complex Structures Made Simple - Continuous Flow Production of Core Cross-Linked Polymeric Micelles for Paclitaxel Pro-Drug-Delivery

In Humanity’s End As A New Beginning, Emeritus Professor Mineke Schipper reflects on myths about ‘the end’.

Who had a say in making decisions about the natural world, when, how and to what end? How were rights to natural resources established? How did communities handle environmental crises? And how did dealing with the environment have an impact on the power relations in communities?

The Bachelor Honours Class 'Homo Ludens: Why We Play' combines games, theory, and practice. Students dive into all aspects of humanity in which games play a part and discuss them, both on a theoretical an experiential level: 'Occasionally, you touch upon what play is, but then it eludes you.'

What forms does Muslim religiosity take in daily life? What is the relation between representations of Islam and Muslims by scholars and the views that exist in the ‘real world’?

This book examines the history of The Netherlands in a way that connects global processes to local developments.

A portrait of the complex historical process of over 500 years of European colonialism in the New World.

Jelle van Buuren bespreekt de link tussen radicalisering en psychiatrische problematiek.

Japan's Occupation of Java in the Second World War draws upon written and oral Japanese, Indonesian, Dutch and English-language sources to narrate the Japanese occupation of Java as a transnational intersection between two complex Asian societies, placing this narrative in a larger wartime context of…

On Tuesday 10 September 2024 May Shaddel Basir successfully defended a doctoral thesis and graduated.

On 1 April 2023, Rowie Stolk of the Department of Constitutional and Administrative Law started a new appointment for 0.7 FTE at Empirical Legal Studies Leiden (ELS@Leiden). ELS provides a platform that brings together legal scholars and social scientists to collaboratively explore legally relevant…

To easily take part in group decision-making research, Jörg Gross, Assistent Professor Social and Organisational Psychology, launched a platform that allows students at the social interaction lab. Sign up to receive invitations if you are interested in taking part in on-going scientific studies in the…

Students greatly benefit from an interdisciplinary learning environment that makes connections with various stakeholders and tackles real-world challenges. This environment allows them to produce innovative and impactful results. As part of their studies, students from the International Institute of…

This book published by Oxford University Press discusses religion and trade in world history.

Imagining the Americas in Print contains eleven essays, seven of which have been published before and four of which are new.

Sheltering is an immediate human need and determines well-being andhealth.

During the period 500–1000 CE Egypt was successively part of the Byzantine, Persian and Islamic empires. All kinds of events, developments and processes occurred that would greatly affect its history and that of the eastern Mediterranean in general. This is the first volume to map Egypt's position in…

Keynote lecture

Water fleas and damselflies are much more sensitive to crop protection products in nature than in the lab. These test results from the Living Lab were presented by Henrik Barmentlo and Martina Vijver in Dutch radio show Vroege Vogels.

As a practice in which human beings were held captive for an indefinite period of time, coerced into extremely dependent and exploitative power relationships, denied rights (including rights over their labor, lives, and bodies), often vulnerable to forced relocation by various means, and forced to labor…

The European Registry of Exonerations database provides an overview of miscarriages of justice in Europe with a view to preventing future errors.

Leiden University has received a gift of over 2m euros from the Utopa Foundation for its Department of Social, Economic and Organisational Psychology. The gift will be used to set up a Psychology and Economic Psychology research and teaching fund. There will also be a new knowledge centre, which will…

In early medieval England, there was an interest in the history of the Roman Empire and kings adopted such imperial titles as 'imperator' or 'basileus'. How can we explain this interest and what functions did imperial ideas and the reception of the classical world serve in early medieval England?

The Persian Empire (539-330 BCE) was the first world empire in history. At its height, it united a territory stretching from present-day India to Libya - and it would take 2,000 years before significantly larger empires emerged in early modern Eurasia. This territorial sweep is both a source of fascination…

Are there general principles or values that should govern our actions as moral agents and/or as political subjects?

This book examines the critical role of information and knowledge in early modern Europe's global pursuits, exploring challenges in trusting distant information, the development of doubt in intercultural encounters, and the impact of misinformation.

The historiography of the Bretton Woods conference of July 1944 is dominated by the personal clash between the principal negotiators, Harry Dexter White of the United States and John Maynard Keynes of Britain.

Archives were a common target during the Second World War, and hundreds suffered damages. Among these archival losses, the losses to medieval manuscript collections stand out.

The ELS lab @Leiden is looking for colleagues to join the newly introduced topic group on Goed Werkgeverschap (‘good employment practices’).

The Laboratory for Archaeozoological Studies underwent a big reorganization and received a great donation from the Institute of Biology this summer. Laura Llorente Rodriguez explains the impact of this donation and reorganisation in this interview.

Researchers from the Institute of Environmental Sciences of Leiden University started crowdfunding to raise 15.000 euro to build a laboratory in nature: The Living Lab. This is necessary to test the effects of chemical compounds in a natural situation.

After 2 years of planning, designing, testing and adjusting, the brand-new low-vibration physics lab at the new Gorlaeus Building of the Science Campus is working like a charm and ready to make its mark in the world of science. Also, the renewed facility for the production of liquid helium is all do…

Researchers, civil servants and local residents met on 27 September to talk about partnering for sustainability. What were the results? In a green ‘city oasis’ in the centre of The Hague they spoke about the energy transition, bottom-up initiatives and citizen science.

Last week, Humanities Lab honours students presented their research through creative posters and pitches at the Capstone Conference in PLNT Leiden. It was a special edition, where alumni and teachers reminisced over the programme’s 10-year history.

This year Leiden University exists for 444 years! This will be celebrated together with the residents of Leiden and The Hague during various activities. One of these is scientists and residents doing research on plastics and psychology together.

Carl Li defended his thesis on 30 June 2015