Despite the field’s general agreement that pyrotechnology had a significant impact on the cultural evolution of humankind, our understanding of the origins and development of fire use and its role in humankind’s cultural evolution is very limited, blurred by strong disagreements over its chronology…

When do fire making tools appear in prehistory, and how might the use of these tools manifest in the archaeological record?

The research contained in this dissertation explores the origins of fire making in prehistory, focusing primarily on the fire use practices and fire production capacities of Neandertals.

Controlling fire was a turning point in the development of human civilisation. But how did fire become part of the human toolkit? The BBC radio show CrowdScience discusses the topic with Leiden archaeologists Andrew Sorensen and Kathy MacDonald.

In 2018, Sorensen’s research into the fire-making habits of the Neanderthals reached the headlines all over the world. Now, a Veni grant will enable him to continue his fire-related investigation, focusing more on our own distant ancestors.

Are traces of fire use detectable in ancient hominin genomes?

Correctly interpreting the patterns of fire evidence in the archaeological record will illuminate the origin of human fire use.

The routine assumption that Upper Palaeolithic early modern humans in Europe were regular fire users who produced fire at will has never been tested against the archaeological record. Utilizing literature, database and microwear analytical approaches, this project seeks to establish the role and forms…

Building a fire involves many variables, such as size, choice of fuel, temperature, and burn time, that affect the way the generated heat can be used, and therefore the potential function of a fire. A group of Leiden archaeologists are, together with a team of international colleagues, investigating…

Neanderthals at Pech-de-l'Azé I in South Western France had a striking use for manganese dioxide 50,000 years ago.

Promotores: H.A. Udo de Haes, H.H.T. Prins, Co-promotor: H.H. de Iongh

What impact does a mid-season wildfire have on grassland invertebrates?

A contextual approach to anthropomorphic figurines in the Pavlovian (Central Europe, 29-24 kyr BP) (2001)

Neanderthals were able to make fire on a large scale with the aid of pyrite and hand-axes. This means they could decide when and where they wanted fire and were not dependent on natural fire, as was thought earlier. Archaeologist Andrew Sorensen has discovered the first material evidence for this. Publication…

A study by a Leiden-Wageningen group shows that present-day humans are biologically poorly equipped to deal with the toxins they are regularly exposed to in smoky environments: compared to earlier hominins, we modern humans are probably even worse off. The study appeared in Molecular Biology and Evolution.…

The word ¨pyroptosis¨ can be understood as ¨fiery falling¨, which describes the bursting of pro-inflammatory signals from the dying cell. Our observations indicate that pyroptosis also ¨spreads like wildfire¨ and once a cell dies via pyroptotic cell death, neighbouring cells are more prone to die as…

In Europe, archaeological traces of fire become more frequent between 300,000 and 400,000 years ago; but could the earliest occupants have survived without fire for at least half a million years before this? How could the early occupants of Europe have kept warm and processed meat without fire?

The use of fire can tell us a lot about human evolution. Archaeologist Femke Reidsma has developed a more accurate technique to identify how our ancestors used fire. Existing archaeological studies will need to be revised. Reidsma’s study was published in Nature Scientific Reports on 2 November.

At the start of the year a lot of journals publish lists of their most cited papers of the previous year. Three papers published by Leiden archaeologists were ranked in the top 10 of the Journal of Archaeological Science: reports.

In August-September 2016 three CML students are doing an exciting field work in sub-arctic tundra in Sweden in collaboration with Ümea University.

The Dutch TV programme Keuringsdienst van Waarde investigated the origin of BBQ taste. Prehistoric fire expert Andrew Sorensen was invited to explain prehistoric fire making techniques.

Ancient peoples might have harnessed the power of fire to modify their environment

Archaeologists often use the percentages of heat-affected stone or bone artifacts found at archaeological sites as a way to determine how frequently fire was used by the inhabitants. Andrew Sorensen and Fulco Scherjon have come up with a computer model called 'fiReproxies' to simulate how fires used…

When and how commenced the use of fire by early humans? Armed with stones, peat moss, and fungi, archaeologist Andy Sorensen tries to answer that question. In the February edition of the Dutch language version of National Geographic Magazine his research features in the section The Discovery.

The starting point of human-induced landscape changes has been under permanent debate. It is widely accepted that the emergence of agriculture strongly increased human impact on their environments. However, foragers can and do actively transform land cover and ecosystems. Ethnographic observations,…

Early hominins probably lived in Europe for hundreds of thousands of years before using fire to alleviate the winter cold, to cook or to make tools. It was only in the period betwen 300,000 and 400,000 years ago that the first finds were made that indicate that people had the ability to control fire…

Due to the fire in the student apartment on the Rijswijkseplein 'De Struyck' in The Hague, we have set up an emergency number: 071-5271132.

For the following years, Dr Aitor Burguet-Coca will be a returning face at the Faculty of Archaeology. He will join Dr Amanda Henry’s team with his expertise on prehistoric fire use and the methodologies that studying ancient hearths requires.

A global synthesis of the extent, diversity and patterns in off-site fire use by historically documented and current hunter-gatherers with the remit of this study in the deeper past.

A discussion is currently being held about whether a demonstrating policy official employed by the Municipality of The Hague, who is also a local councillor in Rijswijk, can remain in office after she participated in Extinction Rebellion’s recent climate protest. The VVD party in The Hague claims this…

Pyrotechnology – the manipulation and control of fire – is one of the defining characteristics of humanity, and has impacted nearly every technology that we used in the past and study archaeologically in the present. Our PhD researcher Femke Reidsma joined EXARC's podcast for May’s #FinallyFriday to…

The faculty has been investigating hundreds of ancient stone tombs in Jordan’s Black Desert.

Europe lives! This became clear last Friday when students debated with the French ambassador to the Netherlands, H.E. Luis Vassy, and his German colleague, H.E. Dirk Brengelmann, on a range of topics relating to Franco-German relations and the European Union.

It is time for the international community to put a stop to war crimes – especially against medical personnel, argued international chair of Doctors Without Borders Joanne Liu in her Cleveringa lecture.

When is the last time you made a fire? Not light a candle with a match, but an actual fire from scratch. Thousands of years ago, humans already made fire. Archaeologist Andrew Sorensen (Leiden University) explains when and how they did this.

The seventh Leiden wall formula has been finished. Over the last few weeks, mural artists Ben Walenkamp and Jan Willem Bruins have painted Christiaan Huygens' pendulum formula on 'De Brandmeester' an old drill and hose tower in de Plaatsteeg, just behind the Breestraat in Leiden.

Lecture, Studium Generale

The HARVEST project explores the dietary choices that our hominin ancestors and relatives made, by recovering information on what they consumed, and how factors like environmental variation, intrinsic biology, and development of food processing technologies could have influenced their decisions.

How can teachers be motivated by their students’ data in making stepwise changes to their teaching practices?

How do individuals make decisions? What determines the quality of group decisions? When and why do people cooperate with others? How does intergroup competition evolve?

Andrea Bartolucci is Assistant Professor at Institute of Security and Global Affairs. In this study, the scholars adopted a multidisciplinary approach to investigate wildfire risk in Van Chan district in northern Vietnam, a region where official data are sometimes difficult to collect or inconsisten…

This thesis focuses on the question: What is the content of mentor teachers’ practical knowledge of adaptive response to their mentee teachers’ learning?

On 1 July 2020, Niek Strohmaier defended his thesis 'Making Sense of Business Failure'. The doctoral research was supervised by Prof. J.A.A. Adriaanse en dr. H. Pluut.