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

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)

Are traces of fire use detectable in ancient hominin genomes?

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

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…

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

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?

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…

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

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

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

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.

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…

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.

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…

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…

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…

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

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.

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.

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.

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.

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.

Does a mid-season fire impact invertebrate populations?

Rembrandt painted the portraits of more Leiden alumni than we can show in the route. Discover who else posed for Rembrandt.

Lecture

Debate, LUC The Hague Book Club

Lecture

Lecture, Geoarch@Leiden

The Human Origins group at Leiden University studies the archaeology of hunter-gatherers, from the earliest stone tools in East Africa, more than three million years old, to the origin of sedentary societies towards the end of the last ice age.

The research that is united in the Liveable Planet programme, touches upon a wide range of aspects of human life. The goal is to deepen and expand the scope and to connect more researchers. The following case studies are examples of current research projects.

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.

Lecture, Studium Generale

Promotor: G.R. de Snoo Co-promotor: C.J.M. Musters

Read on these pages all about the history of Leiden University, the oldest university in the Netherlands. The Academia Lugduna Batava was founded in 1575 and its motto is: Libertatis Praesidium ('Bastion of Freedom').

Safety issues of the transport and storage of Chlorine, ammonia and LPG.

The work presented in this thesis addresses the role of the locus coeruleus (LC) - norepinephrine (NE) system in various aspects of human cognition, and the modulation of brain state.

What are the various forms of inter-organizational collaboration in the public safety sector? How are different forms of inter-organizational collaborative arrangements related? What is the relationship between inter-organizational collaboration and innovation in the public safety sector?

Lecture, Studium Generale

Lecture