This liber amicorum is a tribute to Prof. dr. ir. Hans H. de Iongh, associate professsor at the Institute of Environmental Sciences (CML) of Leiden University and guest professor at the University of Antwerp, on the occasion of his retirement on 27 October 2016.

The Dutch Tax Authorities leaked information about an international tax audit to Uber. In addition, they ‘obstructed and delayed’ an investigation by other EU Member States, says the International Consortium of Investigative Journalists (ICIJ) based on internal documents from the tech company.

Digitalisering ondermijnt de democratische rechtsstaat en verschuift macht van parlementen naar Silicon Valley, waarschuwt Reijer Passchier, hoogleraar digitalisering en beginselen van de democratische rechtstaat (OU) en docent staatsrecht in Leiden, in een podcast van de Publieke Ruimte.

1000 Years of World History in 100 Old Maps.

We are pleased to invite abstracts for a conference on ‘Advancing Social, Economic, and Cultural Rights in a Polarised, Digitalised, and Unequal World’ to be held at Leiden University on 4 and 5 September 2025, in collaboration with Netherlands Network for Human Rights Researh (NNHRR).

Erik de Maaker and Radhika Gupta received a Seed Grant to initiate research on how heritage has been and can be mobilised to address climate change governance in Himalayan Asia. This project will address a significant knowledge gap on the potentials and pitfalls of climate governance, with an initial…

Optimally solving real-world expensive Black-Box Optimization (BBO) problems w.r.t. real-world constraints, such as wall-clock time and computational costs, is extremely difficult and tedious.

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

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.…

Jeanine de Roy van Zuijdewijn teaches the masterclass terrorism 2018 together with Edwin Bakker. Read the interview here.

This PhD project investigates how Russian state-aligned media frame the war in Ukraine for international audiences and how these frames travel across borders, being adopted, adapted, or challenged by foreign media and political actors.

Since the 16th century, religious concerns have motivated the study of Old English and its speakers. In the 19th century, scholars turned to the study of Old English literature in particular to find traces of pre-Christian, ‘Germanic’ religion, as discussed in Eric G. Stanley’s seminal work The Search…

From ca. 1540 to 1600, thousands fled the war-stricken Southern Low Countries to the British Isles, Germany, and the Northern Low Countries. Research on this displacement crisis, central to the formation of the Netherlands and Belgium, reflects 21st-century debates on migration and language: language…

Het Internationaal Strafhof (ICC) in Den Haag bestaat sinds 2002, met als kerntaak het vervolgen van personen die verdacht worden van genocide, misdaden tegen de menselijkheid en oorlogsmisdaden. Wat zijn we opgeschoten met bijna twintig jaar ICC? Promovenda Marieke Wierda onderzocht de impact van het…

On the 13th of February, Matthew Sung successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Matthew on this achievement!

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

This COIn Grant 2025 awarded project allows Leiden University researchers and students to do research on the world’s largest corpus of digitized Ottoman language periodicals and books.

More on the Dutch webpage.

This study offers a new approach to the history of sites, archaeology, and heritage formation in Asia, at both the local and the trans-regional levels.

In het jaar voor overlijden door zelfdoding zag een groot deel van de mensen een zorgprofessional. Het optreden van zorgprofessionals is van cruciaal belang om het aantal zelfdodingen in Nederland te verminderen. Daartoe moet de kwaliteit van zorg beter, in het bijzonder voor jongeren, jongvolwassenen…

A linguistic prehistory of the Tarim Basin in Northwest China

What workflow of non-destructive techniques provides accurate, valuable data to improve our understanding of Caribbean archaeological landscapes? How were Amerindian settlements configured?

Political scientist Maurits de Jongh (Leiden University/Sciences Po) argues that political liberalism is self-defeating as a framework of justification for liberal conceptions of justice. He explores how the framework's self-imposed criterion of acceptability in the eyes of all reasonable citizens leads…

Is the quality of the current supervision and enforcement by the government such that companies that work with large quantities of hazardous substances are brought into compliance with legislation and regulations?

Die Aufführungspraxis italienischer Instrumentalmusik in der Auseinandersetzung mit Vokalmusik und Text: Quellen und moderne Umsetzung

Why is there not just one single global law for cases of defamation in cross-border communication mediums such as the internet? Which courts are to be called on in such cases? And is it permissible to hold an intermediary instead of a content provider liable?

Inaugural lecture

Classical mathematical models treat space and time as a continuum, while it is sometimes more useful to regard it as granular. Hupkes is studying what this means for a number of important patterns that are often found in computer calculations and in nature.

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

In a creative assignment as a part of the bachelor's course Visual Culture, students explored the impact and complexity of visual culture by means of visual culture. The resulting artworks were of such a high quality that it was decided to present these in an exhibition.

Benjamin Fogarty-Valenzuela published the article 'Pedagogies of Prohibition: Time, Education, and the War on Drugs in Rio de Janeiro’s Zona Norte' in Cultural Anthropology 37. The article’s three sections focus on three forms of temporal control—busyness, punctuality, and rhythm—and each demonstrates…

Er is een nijpend tekort aan medicijnen. Volgens onderzoek van NRC is bijna één op de zeven Nederlandse patiënten aangewezen op geneesmiddelen uit het buitenland. Promovendus Koosje van Lessen Kloeke sprak over dit tekort met Mr.: ‘De Nederlandse geneesmiddelenwetgeving rammelt.’

Tijdens de campagnes voor de Europese Verkiezingen werd beweerd dat 70 of zelfs 80 procent van onze wetten door de EU worden bepaald. Maar klopt dit wel? Hoogleraren Armin Cuyvers en Kutsal Yesilkagit spraken erover met Pointer.

OP Grants NWO are awarded to 16 scientists in astronomy, computer science and mathematics, or a combination of these disciplines (multidisciplinary) by NOW Exact Sciences. The scientists received a total amount of 6 million euros.

Nederlanders met lage inkomens lopen tot 1,5 keer meer risico op het krijgen van een hartaanval of beroerte dan rijkere landgenoten. Bij Surinaamse Hindoestanen is dit risico 1,9 keer hoger. Dat blijkt uit onderzoek van het LUMC en het HagaZiekenhuis. Nederlandse artsen kijken tot nu toe niet naar deze…

On 27 September 2019, Bart Schuurman, Assistant Professor at the Institute of Security and Global Affairs spoke to Dutch regional newspaper 'de Gelderlander' about the decline in attention for jihadism.

By documenting lexical and morpho-syntactic patterns among P’urhepecha speakers in Mexico and the US diaspora, this project will investigate the sources of language variation. The ensuing online dialect atlas will serve as an online resource for speakers, learners and researchers of the language.

In zijn oratie bepleit Joachim Koops dat de toekomst van Security and Global Affairs ligt in onderzoek, onderwijs en academisch bestuur.

Vanwege de toenemende drukte, chaos en gevaarlijke situaties op fietspaden roepen de vijf grote gemeenten op tot een verbod. Volgens Geerten Boogaard, hoogleraar staats- en bestuursrecht, ligt de oplossing niet in een algeheel verbod. In EenVandaag licht hij de zaak toe.

Grootschalige productie van batterijen voor elektrische auto’s zwakt de emissiereductie die door elektrisch rijden wordt behaald af.

Ontdek je eigen gedrag en dat van anderen tijdens onze unieke teambuildingervaring, waar wetenschap, emoties en spelletjes samenkomen!

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…

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

In May 2018, Malek F. stabbed three people in The Hague. According to Malek F., he was told by a ‘big bird’ in the sky to randomly stab people. His lawyers registered a plea of insanity with the court because of his mental condition. In the end, the court sentenced Malek F. to involuntary commitment…