Back to the ROOTS – Data Collection in an Immersive Setting

In June, I spent a week near Burgos in northeastern Spain as a participant and researcher of the ROOTS project, an initiative by Markus Klek from palaeotechnik.eu. The project invites people to share and explore the challenges of living in the past, in our case more specifically the western European Mesolithic/Neolithic transitional phase. The challenges affect all aspects of daily life, as food and cooking, clothing, the use of tools, craft activities, and the provision of shelter and warmth were dependent on the materials available at the time. This meant that neither metal or plastic was allowed, and that modern intrusions in the form of medical and other aids such as glasses were kept to a minimum (read more about the ROOTS project here).

This setting allowed for the collection of interactional data that showed how

  1. participants adapt to unconventional and unfamiliar environmental, material and spatial affordances and
  2. pastness, i.e. a relationship to and understanding of the past was enacted.

Particularly interesting interactions included the following settings and activities:

Creating and modifying space: Upon arriving in the area, a densely wooded landscape with oak trees, participants selected a suitable spot in the area to set up camp. To provide against the rather unreliable weather, the camp had to undergo several modifications to install more sheltered areas and to protect the hearth with the fire.

The planning and execution of such shelters required discussions and joint cooperative actions in the spatial environment of the camp, using material resources such as flint blades, plant-based string material and animal skins. Participants relied on their own experiential knowledge while at the same time (re)discovering knowledge and solutions that could plausibly be attributed to predecessors (for interaction with predecessors see e.g. Goodwin 2018). (Image credit: Antje Wilton)


Exploring space: The group took frequent walks in the wider area, a paleolithic park which was populated by animals such as aurochs, bison and horse.

They also revisited previous camps, exploring and evaluating how the site had changed during their absence – in particular, how the passing of time had altered the appearance of objects that had been left behind. Such interactions provided insights into how the group moved within the area, how they reflected on previous uses of the space and how they interpreted traces of previous occupation with respect to social activities. (Image credit: Antje Wilton)


Conceptualizing space: As the group became more familiar with the area, their mental representations of the layout converged into common knowledge about where certain places are in relation to other places, and how they should be (or became) named.

This shared knowledge manifested itself in the creation of temporal maps, which participants drew into the ash and discussed together. Interestingly, the map not only emerged visually in space, but also temporally, as participants redrew the map several times with an increasingly narrow focus on the location of the camp. Additionally, the heap of ash allowed a vertical extension of the map into a 3D-model of the landscape. (Image credit: Antje Wilton)


Using space: A central task of the group was to keep the fire in the hearth going during the day. The fire provided the main focal point of the camp, and participants gathered around the hearth to engage in various types of activities, such as cooking and crafts as well as discussions and storytelling. Through the activities, the hearth itself became structured into different zones, where heat regulation and vigilance were adapted to the task at hand, i.e. the cooking and heating of meals in a ceramic pot, the careful drying of freshly made pottery, the smoking of meat, baking on heated stones, roasting of hazelnuts in the hot ash, frying fresh fish etc.

This required constant coordination and joint action among participants sitting in different positions around the central hearth, continuously shaping and reshaping the interactional space (more on the concept of interactional space in Mondada 2014). (Image credit: Markus Klek)


The insights we hope to gain with this new set of data are expected to shed more light on how pastness is enacted and achieved in interaction, how adaptation to environmental, material and spatial affordances manifests itself in interaction and how such behaviours inform us about basic human interactional processes in spaces where modern architectural infrastructure is minimal or absent.

Apart from being a rich source of interactional data, the week in the woods near Burgos was also great fun – thanks to a lovely bunch of people including Markus, Tine, Mike, Marian and Olga, and Eduardo and Estefania from Paleolitico Vivo!

The “clan” (image credit: Markus Klek)

To experience the area that has been home to humans for more than 850.000 years (and likely even much earlier), as evidenced by the world famous UNESCO World Heritage site of Atapuerca nearby, in such an immediate and immersive setting was truly inspiring and instructive.

Interpreting the Mesolithic in Brandenburg

A glimpse into the Brandenburg State Museum of Archaeology

In this guest post, Fatima Wollgast and Sandra Lehninger take us to the Brandenburg State Museum of Archaeology, where some of the most important finds from Mesolithic sites in the area are on display.


In the permanent exhibition of the Brandenburg State Museum of Archaeology a separate room is dedicated to the Mesolithic. For our region, this period is dated to around 9500 to 5500 BC. Its end is marked by a long transitional phase towards the Neolithic. Late Mesolithic groups are still recorded for the 5th millennium BC. They were neighbours of established farming cultures.

The virtual tour of the permanent exhibition includes the Mesolithic as well. The state of Brandenburg has Mesolithic sites of international importance. Accordingly, a large part of the exhibition material comes from the sites of Friesack, which have been visited repeatedly by Mesolithic groups over centuries. The well-preserved organic material provides insights into the living environment of those people: A fishing net made of willow bast – one of the oldest nets in the world – , net sinkers and floats, fishing hooks, harpoons, a probable paddle fragment, a decorated turtle shell, a birch bark vessel, fruit and plant remains or an elaborately decorated hole stick – all from Friesack – are on display in the exhibition.

Illustration 1 – Another hole stick from Wagenitz/Havelland (also on display in the exhibition) surrounded by various decorative patterns from the Paleolithic and the Mesolithic
© Wollgast/The_Pen_And_The_Past

The burial sites of Criewen and Groß Fredenwalde are also featured. The latter has made headlines in recent years. Thanks to new excavations, Groß Fredenwalde is now considered one of the largest Mesolithic burial sites in north-central Europe with 12 buried individuals – and the research goes on.

Exhibits from other sites give visitors a further impression of Mesolithic living conditions: The skeleton of an aurochs, typical microliths and early axe forms are among them. For those who want to learn more about this period, a media station offers information on climate, flora and fauna. Film sequences show the use of prehistoric hunting weapons.


Considering the museum’s educational programme, the Stone Age in general is of great interest. In active guided tours children and teachers, supported by the museum educator, can learn more about the special features of each Stone Age period. The tour is illustrated with material to touch, wear and try out, as well as with numerous illustrations. Further, simple questionnaires that encourage the exploration of the Stone Age rooms of the exhibition are part of the programme.

Unfortunately, the Mesolithic itself is less well known than other parts of the Stone Age as it is hardly thematised in school or in the media. Therefore replicas and objects made of natural materials as well as bark, dried fruits, berries and mushrooms are used in the guided tour for kids. The aim is to teach the children about the natural resources that were available to Mesolithic people. On request kids can also try their hand at making red natural dye, as it is known from graves of this period. In a time when environmental protection, healthy nutrition and natural resources are central topics, dealing with the Mesolithic has great potential. Which child (and which adult) can imagine that people once lived in and with nature? That all their needs were met from their immediate environment? Or that birch juice is tasty, water lily roots are edible and fibers can be made from nettles?


For older students, a more complex worksheet on the topic of “humans and environment” can be used. It provides information on the topic of climate, environment and survival strategies of people. These questionnaires are already available for the Palaeolithic and Mesolithic periods. For other time periods, they are currently in progress.

Illustration 2 – Can you imagine what a Mesolithic buffet would have looked like?
© Wollgast/The_Pen_And_The_Past

Finally, the Mesolithic is, of course, repeatedly addressed in various events and lectures. For example, the reconstruction of Mesolithic food plays a role at this year’s ARCHÄOTECHNICA, a two-day event on Nutrition through the Millennia. A lecture planned for November 2023 on the current research results at the well-known Mesolithic cemetery of Groß Fredenwalde as well as a smaller specialist conference on Mesolithic in 2024 will also deal with this period from a Brandenburg perspective.


Fatima Wollgast M.A.
Sandra Lehninger M.A.
Brandenburg State Authorities for Heritage Management and State Museum of Archaeology

We have a hut – and data!

Our hut building weekend was a great success – we now have a robust domed structure made of hazel and tied with leather and rawhide strips. We have also started to cover the structure with hazel branches and living willow to provide some shade, and some sense of “inside” and “outside”. Experts, students and volunteers worked together for three days to collect materials from a nearby grove, lay out the dimensions and position of the hut and turning the structure of long and sturdy hazel branches into a domed round building. Replica of Mesolithic tools such as antler axes and flint blades were used for procuring and preparing the branches and leather and rawhide strips. During the Long Night of Sciences (Lange Nacht der Wissenschaften) on June 17, 2023, visitors were able to participate in the hut building by helping to integrate hazel branches into the structure. Additionally, they were given the opportunity to explore materials like birch bark (provided by Sagaan) for making containers and to try roasting hazelnuts in hot sand – this worked very well!

During those three days, we filmed many of these activities with the consent of participants and got very promising interactional data. We used three types of cameras to documents three different perspectives: a static camera to provide an external observer’s view, a mobile camera to provide an internal observer’s view, and bodycams to provide internal participants’ views.

(c) Antje Wilton // All icons from www.thenounproject.de

What next? We plan to make the hut more durable – and potentially habitable – by applying a suitable cover. We are looking forward to cooperate with the Institute for Prehistoric Archaeology and our new colleague Prof. Dr. Henny Piezonka at the FU Berlin on all things Mesolithic, and in particular to discuss possible materials and techniques for covering the structure that we can assume were used in the Mesolithic on the North German Plain. If we can get the materials required, we will send out a call again for anyone interested in participating in the next building phase – hopefully sometime in the autumn, so stay tuned if you are interested!

Furthermore, work on the data has already begun. Together with our colleague Kenan Hochuli from the University of Zürich we currently work on our presentation for session #202 of the upcoming EAA conference in Belfast – the session brings together contributions on the social aspects of building in pre- and protohistoric times. We hope to be able to stimulate the discussion and get some valuable feedback on the relevance of interactional research for the investigation of past architectural spaces!

Welcome to the Interaction Lab!

The funding application was approved! We now have a Mesolithic style hut on our campus and we documented the building process by videorecording it from three different perspectives, so that we now have interactional data for use in EMCA, linguistics, archaeology, architecture, sociology and museum studies. We encourage anyone from those or other fields to get in touch if you are interested in cooperation.

The hut was built by the legendary Wulf Hein and colleagues Cornelia Lauxmann and Ruth Hecker (http://arc-tech.de) with the help of volunteers and was modeled on a local find from Brandenburg. More on the theoretical background of the project can be found here.


The hut project is the start of a new Interaction Lab that is planned to comprise a number of different prehistoric structures to investigate various aspects of social interaction in heritage environments. Follow us on this blog and on Instagram (the.interaction.lab https://www.instagram.com/the.interaction.lab/) for updates.

Thanks go to the Spotlight program by PROFUND Innovation and to the Department of Philosophy and Humanities for their support. Read about the funding program and other fascinating projects here.

This is the type of hut we used as a model – the main materials are hazel and willow.