Benjamin Marius Telders, professor of international law, died of typhus in Bergen-Belsen on 6 April 1945. He was an example of civil courage before and during the occupation. He spoke up against inequity and injustice.

Ben Wielstra studies hybrid zones, regions in which distinct populations of organisms meet, mate and produce genetically admixed offspring. In the journal Current Biology, he introduces hybrid zones in an accessible way.

Ben Kuipers is benoemd tot hoogleraar Publiek Leiderschap bij FGGA. De leerstoel Publiek Leiderschap (0,2 fte voor een periode van vier jaar) wordt extern gefinancierd vanuit het samenwerkingsverband VPL (Verder met Publiek Leiderschap) en is ingebed in het Leiden Leadership Centre (LLC)

Ben Wielstra studies balanced lethal systems, in which half of the offspring die before birth. In the journal Current Biology, he explains in an accessible way how such a disadvantage can originate in nature.

Emeritus Professor Ben Lugtenberg received ‘The Arima Award for Applied Microbiology’ from the IUMS (International Union of Microbial Societies) for his life-time contributions to this field.

The Ben Pauw thesis prize for the best Master’s thesis in the area of Public Affairs was won by student Esther Mangelsdorf of the Institute of Public Administration.

On 12 September 2025, Dr. Ben Van Rompuy participated in the conference “Playing by the Rules: the Intersection of Competition Law and Sports”, organised by the University of Lausanne.

Political Science: National and International Politics is a broad study with a lot of depth. You will study political issues at the local, national and international levels, from a variety of perspectives. You will be taught by renowned, committed professors. In Leiden you will find a real student city…

A memorial stone honouring professor and resistance hero Ben Telders was unveiled on 12 September at the site of the former concentration camp Bergen-Belsen.

At two recent events, Ben Van Rompuy, Assistant Professor of competition law at the Europa Institute in Leiden, discussed current developments in the application of EU competition rules to regulatory aspects of sport.

On 25-27 June the Academic Society for Competition Law (ASCOLA) organized its 15th yearly conference discussing the most recent developments in the context of competition law policy.

Ben Van Rompuy participated as an invited expert in the 22nd Annual Meeting of the Association of European Competition Law Judges (AECLJ), which took place in Berlin between 30 May and 1 June 2024. The event was co-organised by the European Commission.

On 19 November 2018, the American Bar Association (ABA), Section of Antitrust Law organized a teleconference “Sports and Antitrust: Breaking the Ice”.

Ben Van Rompuy, assistant professor of EU competition law, was an invited expert at the 23th Latin American and Caribbean Competition Forum (LACCF) organised in Quito, Ecuador on 28-29 September 2023.

When the plans for a breakaway Super League in European football were announced this weekend, governing body UEFA threatened to ban all participating clubs and players.

On 27 September the European Commission informed the International Skating Union (ISU) of its preliminary view that its eligibility rules under are in breach of EU antitrust rules.

The new scholarly journal ‘Voetbal- & Sportjuridische Zaken’, published by Boom Juridische Uitgevers, will focus on current legal aspects related to sport with particular attention for football.

Following the murder of two Dutch people - of which Iran is suspected - Trouw investigates how usual these practices are. Paul Abels, Professor of Intelligence Studies and Ben de Jong, Researcher, both working at the Institute of Security and Global Affairs (ISGA), will address the subject.

On 8 December 2017, the European Commission decided that the International Skating Union (ISU)’s eligibility rules, which impose severe penalties on athletes participating in speed skating competitions that are not approved by the ISU, are in breach of EU competition law.

On 24 October 2018, the European Competition and Regulatory Law Review (CoRe), the Computer and Communications Industry Association (CCIA) and the Vrije Universiteit Brussel jointly organized the second “Competition Policy and Online Markets” conference in Brussels.

Ben Van Rompuy was a guest speaker at the 138th Lunch Talk of the Global Competition Law Centre (College of Europe), which took place in Brussels on 15 January 2024.

On 10 January, Ben Van Rompuy spoke at the New Year's meeting of the Dutch Competition Law Association in Amsterdam.

Dr. Ben Van Rompuy participated as an invited expert in the annual Congress of the International League of Competition Law (LIDC), held this year in Vienna from 9 to 12 October.

Shortly before Remembrance Day, a new film was launched about the life and legacy of Ben Telders. Telders was professor of Dutch Law at Leiden University at the start of the Second World War; he was imprisoned in a concentration camp on account of of his protest against the Nazis.

On 16 April, an edition of Zembla, the Dutch documentary programme produced by BNNVARA, investigated the connection between Thierry Baudet, leader of Dutch political party Forum for Democracy and the Kremlin. Ben de Jong, visiting lecturer at the Institute of Security and Global Affairs, was interviewed…

Ben de Jong, a guest lecturer at the Institute of Security and Global Affairs, appeared as a guest on NPO Radio 1 to discuss number stations that are used to send secret messages to spies in enemy territories.

Ben de Jong, inlichtingen-deskundige en gastonderzoeker en -docent bij het ISGA aan de Universiteit Leiden, werd geciteerd in een artikel in het Algemeen Dagblad over topografische kaarten die de Russen tijdens de Koude Oorlog gebruikten. De Sovjet-Unie beschikte over een ongelofelijke hoeveelheid…

This thesis investigated the extent to which participation of school students in decision-making processes can be achieved, including through participatory action research (PAR) in teacher education.

Ben de Jong and Paul Abels, both working for ISGA, discuss the Russian claim that espionage equipment was found in Dutch newspaper Algemeen Dagblad (AD). According to the Russians the equipment was found in one of the cars used by their diplomats in The Hague.

Religion is everywhere. Knowledge of religion is essential for anyone who wants to understand the world. Are you fascinated by the diversity of religions, their development throughout history and their meaning today?

This Research project is funded by the 7th European Community Framework Programme, with additional funds from NWO Aspasia grant, and in collaboration with University of California, Berkeley.

How do balanced lethal systems originate and persist in nature?

There are about 35,000 students with chronic illnesses in the Netherlands. If they cannot receive education in the classroom, they may be able to do so from home or a hospital with hybrid education. The question in this study is: how can interaction with the teacher and fellow students be promoted?

Insect egg development in a warming world: the eco-evo-devo of embryonic developmental time: What is the genetic basis of developmental time?

It recently emerged that a Swiss firm secretly owned by the CIA and the West German intelligence service BND had been selling manipulated coding equipment to numerous governments, including allies, to spy on them through a Swiss cover firm for years.

The theme 'Health and well-being in a healthy society' is one of the focal points of the Faculty of Social and Behavioural Sciences (FSW). We are committed to promoting health and well-being for people of all ages.

A project aimed at understanding the complicated process of religious transformation in one of the centres of the early Muslim world.

The research area "Health and well-being in a healthy society" studies the institutional and behavioral factors that play a role in health and well-being for people of all ages.

An Ancient Egyptian System of Workmen’s Identity Marks

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