De Nederlandse geschiedenis is nauw verbonden met die van de wereld als geheel. Door migratie, handel en kennisuitwisseling beïnvloedden mensen elkaar over grotere afstanden en intensiever dan we lang dachten. Wereldgeschiedenis van Nederland toonde in meer dan honderd verhalen hoe internationaal de…

Dit rapport maakt deel uit van het project Receptenboek burgerparticipatie in opdracht van de Rijksdienst voor het Cultureel Erfgoed (RCE) en met steun van het Fonds voor Cultuurparticipatie.

On 14 May 2020, Pieter Rustenburg defended his thesis 'Een algemene normtheorie toegepast op open normen in het belastingrecht'. The doctoral research was supervised by Prof. A.O. Lubbers and Prof. J.L.M. Gribnau.

Are you thinking about studying Encyclopedie en filosofie van het recht? Learn more and watch the videos. Please note that this programme is taught in Dutch.

Duizenden metaalvondsten die door detectorzoeker wijlen Herman Zomerdijk zijn gedaan in de regio Kennemerland schetsen een uniek beeld van Noord-Holland door de eeuwen heen. Hij zocht en verzamelde decennialang historische metalen objecten in Noord-Holland en bouwde zo een unieke metaalcollectie op.

On 30 June 2021, Thijs Beumers defended his thesis 'De bescherming van immateriële contractuele belangen in het schadevergoedingsrecht'. The doctoral research was supervised by Prof. A.G. Castermans and Prof. W.H. van Boom.

Encyclopedie en Filosofie van het Recht is a specialisation of the master’s programme Rechtsgeleerdheid (Law) at the renowned Leiden Law School of Leiden University. This unique programme considers the philosophical issues and concepts upon which law is founded, in the broadest sense.

On 26 February 2020, Hans-Jan van Kralingen defended his thesis 'De ondeelbaarheid van het pand- en hypotheekrecht, deconstructie van een leerstuk'. The doctoral research was supervised by Prof.mr. W.J. Zwalve and Prof.mr. E. Koops.

Eveline Crone wrote a new edition of

Op vrijdag 4 april 2025 organiseert de werkgroep Stedengeschiedenis een bijeenkomst bij de Rijksdienst voor het Cultureel Erfgoed onder de titel ‘Archeologie en de stad’. De studiedag is gratis en voor iedereen toegankelijk.

Unmanned aerial vehicles (UAVs), often referred to as drones, have become easy and inexpensive to buy, and it is generally expected that the use of drones by private individuals, businesses and public authorities will increase tremendously in the coming years. This raises questions as to what is technologically…

On 18 November 2021, Anneke Keulemans defended the thesis 'Het Unierechtelijke verdedigingsbeginsel'. The doctoral research was supervised by Prof. J.P. Boer and Prof. A.O. Lubbers.

Central to this research is the Urban Future-project, which consists of a large archive of artworks made from 2002 until now.

On 25 November 2018, Laurens de Hoog defended his thesis 'De prioriteitsregel in het vermogensrecht'. The doctoral research was supervised by Prof. mr. W.G. Huijgen.

Aan de hand van bekende en minder bekende voorbeelden uit de wereld van politiek en media laat dit boek zien hoe je strategisch gebruik én misbruik kunt maken van taal.

The representation of death children in Dutch literature through time

Foute taal? Bestaat niet!

On 25 November 2020, Sara Arendse defended her thesis 'De uiterlijke verschijningsvorm in het strafrecht'. The doctoral research was supervised by prof. C.P.M. Cleiren and prof. J.M. ten Voorde.

In this study an attempt has been made to describe the degree in which the new objectives of the school subjects Greek and Latin, as formulated at the theoretical level by institutes as curriculum planning committees, are are incorporated by the teachers in their actual teaching practice.

The position of writing within the domain of artistic academic research is not self-evident. In academia, standard practice is to use writing for the transfer of knowledge: it is a means of communication. In the practice of (nonlinguistic) artistic research, the outcome is also often contextualized…

The multiple connections between emblematics and Natural History in the broader perspective of their underlying artistic, literary, political and religious ideologies.

This presentation is presented in Dutch

In what way did Hellenistic legal institutions concerning secured credit influence Roman law?

Publication on the excavations at Roman fort Matilo in Leiden

On 2 September 2021, Gert Jan Geertjes defended his thesis 'Staatsrecht en conventie in Nederland en het Verenigd Koninkrijk'. The doctoral research was supervised by Prof. L.F.M. Verhey and Prof. W.J.M. Voermans.

Werken bij een topuniversiteit? Met uitstekende carrièremogelijkheden? Ontdek de mogelijkheden bij de Universiteit Leiden.

This dissertation presents the results of the importance of creativity for ICT-students of Dutch universities of applied sciences (in Dutch: hogescholen), and the functioning of training courses that aim to promote creative abilities is highlighted.

Research in the natural computing group covers theoretical foundations, the development of new algorithms, and interdisciplinary applications of natural computing methods.

The German hand-reader Julius Spier (1887-1942) played an important role in the life of the Dutch Jewish diarist Etty Hillesum (1914-1943). This thesis argues that instead of being a charlatan - as he has become viewed through Hillesum's writings -, Spier was a talented hand-reader who 'psychologized'…

Voor zowel archeologen, paleontologen en geologen als vrijwilligers in de archeologie en paleontologie is het geen verrassing meer dat op de stranden van de Nederlandse kust fraaie vondsten gedaan kunnen worden. Vele artikelen, boeken, tentoonstellingen, congressen, lezingen, ‘zoekdagen’, krantenberichten,…

The Historia Naturalis Brasiliae Reconsidered

This dissertation is a study of the view of the Neoplatonist Proclus (Athens, 411-485) on to what extent and how the changing and unreliable world of sense perception can itself be an object of scientific knowledge.

- Which metabolites could be components of NADES? - How can we prove the presence of NADES in nature? - What are the roles of NADES in nature? - How to apply NADES in life sciences?

Tussen 14 en 30 september 2022 wordt Het Land van Belofte gespeeld door Theatergroep De Kale. Het Land van Belofte neemt u mee naar de groteske verhaalwereld van middeleeuwse pelgrims naar het Heilig Land. Het Land van Belofte is gebaseerd op het zestiende-eeuwse tafelspel Schipper, Pelgrim en Post.…

Promotor: Prof.dr. J.P. Abrahams

The Netherlands is not particularly rich in ‘wild nature’. Comparatively, what we have is a lot of intensively used agricultural land. This means that from nature’s perspective there much to be gained by combining the ‘nature’ and ‘agriculture’ functions. Not an easy task in such a densely populated…

Natural Computing investigates algorithms and phenonema based on nature to create better and new computer science innovations.

The Hortus botanicus Leiden connects science with the public. Through our research, we explore how people experience and appreciate nature while addressing key societal challenges.

How many species of plants, animals and fungi live in Leiden? Leiden is observing and recording how many unique species there are in Leiden, to put the state of urban nature on the map. Residents (and scientists) will record every spider, snail, mushroom or dandelion they come across during ‘Expeditie…

Research in the Natural Computing and Optimization cluster covers theoretical foundations, the development of new algorithms, and interdisciplinary applications of natural computing methods.

Promotor: A. Doelman, Co-promotores: P.J.A. van Heijster; A. Zagaris

It is well-known that humans have significantly transformed ecosystems since their adoption of agriculture. However, in a deeper past, prehistoric hunter-gatherers may already have altered and modified their niche in ways that had major impacts on ecosystems.

Covid-19 is een disruptieve ontwikkeling die hier en nu veel vraagt van zorgprofessionals, bestuurders en managers. Hoewel de crisis nog volop bezig is, is nu al duidelijk dat het Coronavirus een blijvende impact zal hebben op zorginstellingen en fundamentele vragen oproept over hoe we onze zorg optimaal…

What the Sex Lives of Bugs, Birds, and Beasts Tell Us About Evolution, Biodiversity, and Ourselves, Menno Schilthuizen reports from the front lines of evolutionary biology, on a quest to make sense of the origins, workings and evolution of our and other species’ reproductive selves.