The programme group Parenting, Child Care and Development is located in the Faculty of Social and Behavioural Sciences at Leiden University near Central Station.

An international team of astronomers, including Leiden PhD student Elia Pizzati, has observed several ancient quasars that, surprisingly, appear to be floating alone in the early universe (less than a billion years after the Big Bang). Until now, astronomers, based on models, assumed that quasars are…

Dr Bleda Düring deemed it was time for an archaeological approach on the imperialisation of Assyria. ‘While there are lot of archaeological studies of Assyrian sites, they are not really trying to address this broader picture of imperialism and how this imperialisation actually worked.’ These imperialisation…

For hundreds of years, children in Ancient Egypt learned to read using The Satire of the Trades, a text in which a father gives advice to his son through descriptions of different professions. PhD candidate Judith Jurjens investigated how this worked in practice.

The main focus of this research project is to investigate why people in Eastern Arabia chose to reuse ancient tombs and how this can be linked to collective memory.

We study the structure, dynamics and physics of complex networks emerging from the intricate interconnectedness of the constituents of large systems.

The Terrorism and Political Violence research group at Leiden University examines the causes of radicalisation, the tactics of extremist groups, and the effectiveness of counter-terrorism policies. We also explore the role of the media and the influence of postcolonial legacies in the Global South,…

Let A be a commutative algebraic group over a field K, and let G be a finitely generated subgroup of the K-rational points of A. The purpose of this thesis is to study the degrees of the Kummer extensions relative to A,K and G.

Promotor: Prof.dr. W.T.F. den Hollander, Prof. dr. E.A. Verbitskiy

Most of current public-key cryptography is considered insecure against attacks from sufficiently powerful quantum computers. Post-quantum cryptography studies methods to secure information resistant against such attacks. One proposal is isogeny-based cryptography, which bases its security on computational…

Since the adoption of agriculture people have cultivated fields. The project concerns all kinds of aspects related to raising crops.

A unique archeological find near Tombos in Northern Sudan. Archaeologist Sarah Schrader from Leiden University, working with a team of international researchers, has discovered a grave of a ritually buried horse that is over 3000 years old. Both the grave and the skeleton are in perfect condition. The…

An international team of researchers, involving members from the ERC Synergy project NEXUS 1492 based at the Leiden University, the Universities of Oklahoma, Copenhagen and York reveal challenges when studying ancient microbiomes in a recent issue of Scientific Reports.

Within the bachelor's program of Education and Child Studies, we include the minor Kindermishandeling en Verwaarlozing: een levensloopperspectief and several other courses.

The material and intellectual presence of Egypt is at the heart of Western culture, religion and art from Antiquity to the present. This volume aims to provide a long term and interdisciplinary perspective on Egypt and its mnemohistory, taking theories on objects and their agency as its main point of…

How were ideas about politics and society distributed in ancient China? Hilde De Weerdt, Professor of Chinese History, investigates this using new digital methods. We speak with her about networks, big data and digital humanities.

Two Humanities research masters and one master’s programme score well above average in the Keuzegids Masters: the research master History, the master and research master Classics and Ancient Civilizations.

In this thesis we classify the pairs (p,G), where p is a prime number and G is a finite p-group possessing an intense automorphism, i.e. an automorphism that sends each subgroup of G to a G-conjugate, that is non-trivial and whose order is coprime to p.

Pakistani archaeologist Abdul Ghani Khan (MPhil) and Dr Marike van Aerde (Leiden University) have been awarded the Prince Claus Heritage Emergency Grant for the rescue and preservation of ancient rock art in the Karakorum mountain range of the Pakistani Himalayas. The project will run for a year, from…

In her podcast Tea-Break Time Travel Matilda Siebrecht is joined by fire expert Femke Reidsma, to talk all about how this essential tool was made and used by our ancient human ancestors. How can you recognise an ancient hearth? Why is it so important to study the first use of fire? When was the first…

The Leiden Greek and Roman History Team concentrates on the study of the economies, societies and cultures of the large empires of the Graeco-Roman world, starting with the empires of Alexander the Great and his successors.

Dynamics of material, social and ideological relationships in the pre-Columbian insular Caribbean

Scientists, including our faculty colleague Dr. Mike Field, studying an exceptionally well-preserved woolly rhinoceros have revealed details of what Britain's environment was like 42,000 years ago. The beast's remains were discovered in Staffordshire in 2002, buried alongside other preserved organisms…

This study links up the concept of place with memory, with the idea of transience and the transition from life to death.

Surveying Indigenous Peoples’ culinary practices prior to the advent of European invasions in the Greater Caribbean

Are traces of fire use detectable in ancient hominin genomes?

The aim of this study was to provide insight into how teachers in higher education can be supported in the design, implementation and evaluation of group assignments by developing a theoretical and evidence-based framework for the design of group assignments.

In several Mediterranean regions archaeological sites have been mapped by fieldwalking surveys, producing large amounts of data. These legacy site-based survey data represent an important resource to study ancient settlement organization. Methodological procedures are necessary to cope with the limits…

This thesis explores several aspects of these Early Old Babylonian Amorites.

On 1 April 2020, Ivan Romashchenko defended his thesis 'Related Party Transactions and Corporate Groups: When Eastern Europe Meets the West'. The doctoral research was supervised by Prof. S.M. Bartman en Prof. A. Radwan (Kaunas, Lithuania).

University Lecturer Bert van Den Berg shares about the recent research by The Greek Philosophical Schools project in Italy. The research sheds new light on the life and death of Plato.

In the largest study of ancient DNA ever conducted, an international team of scientists has revealed the complex story behind one of the defining periods in European prehistory. The study is published this week in the journal Nature.

Can SMILE, our multi-component intervention, which combines cognitive-behavioural therapy for insomnia, mindfulness, stress, and lifestyle components, improve sleep quality? Can it also improve mood and quality of life and prevent depression and anxiety in the long term?

Which consumer groups post the greatest cost to public health and the planet through their food choices, and how can we use this fine-scale information to accelerate a sustainable dietary transition?

Why does one person radicalize to involvement in terrorist violence within a group-based context, while another engages in this form of violence alone?

On the 23rd of June Arianna Sacco successfully defended a doctoral thesis and graduated.

At the transition of the Neolithic to Bronze Age, a societal clash took place between a male dominated oligarchy (also known as the patriarchy) and the matriarchy. The latter managed to exploit vulnerabilities in the 'bro-code' to reboot society's operating system.

Since the publication of the article in the interdisciplinary journal Nature, over 200 news outlets have showcased the pioneering research.

How does self-reliance lead to a decrease in collaboration for public goods?

Brian Shaev

In the History of the Roman Emperors, what does Herodian’s method of composition consist of and how does it relate to his writing intention, particularly in terms of political and moral idea(l)s?

Otrar as a Case Study for a 6-10th century Transition Zone

This volume presents fourteen papers by Roman archaeologists and historians discussing approaches to the economic history of Pompeii, and the role of the Pompeian evidence in debates about the Roman economy.