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L’objectif de cette thèse est la caractérisation technologique et typologique des industries lithiques du site de Proskynas en Grèce Centrale durant le Néolithique Récent (NR) et le Bronze Ancien (BA). En comparant ce corpus avec les industries lithiques régionales publiées jusqu’à présent et en contrôlant les techniques par l’expérimentation archéologique, cette étude révèle la contribution de l’industrie lithique dans la compréhension de la transition du Néolithique Récent au Bronze Ancien. L’approche méthodologique envisage une description analytique de tous les objets débités. L’analyse de la base de données ainsi constituée se fonde sur l’étude technologique et typologique approfondie par matière : obsidienne, silex chocolat et silex brun clair. Cette méthode permet de reconstituer mentalement les chaînes opératoires mises en œuvre et de reconnaître les gestes techniques appliqués. La composition des descripteurs analytiques et le croisement multi varié intra-situ et inter-situ des résultats obtenus révèlent une production de lames et d’éclats sur matières locales et importées. La variabilité régionale des chaînes opératoires et des supports débités caractérise le NR. Le BA affiche une grande homogénéité dans les conceptions opératoires et une remarquable standardisation des lames débitées surtout sur obsidienne. L’analyse typologique privilégie la description détaillée des produits confectionnés en outils (supports et retouche). La typologie des outils retouchés, la morphométrie des produits exploités bruts de débitage et sans traces d’utilisation macroscopiques sont des facteurs qui varient aussi bien entre les trois matières principales qu’entre les deux périodes (NR et BA). / The objective of this thesis is the technological and typological characterization of the lithic industries at the site of Proskynas in Central Greece during the Late Neolithic (LN) and the Early Bronze Age (EBA). By comparing this corpus with the regional lithic industries published to date and by verifying manufacturing techniques through archaeological experimentation, this study elucidates the contribution of the stone industry to the understanding of the transition from the Late Neolithic to Early Bronze Age.The methodological approach envisages an analytical description of all the produced objects. The analysis of the database so constituted is based on the technological and typological study deepened by material: obsidian, chocolate silex and light brown silex. This method allows to reconstitute mentally the chains operating implemented and to recognize technical gestures applied. The composition of the analytical descriptors and the intersection multi-varied intra-situ and inter-situ of the obtained results reveal a production of blades and flakes on local and imported materials. The regional variability of operating chains and of debited supports characterizes the LN. The EBA shows a great homogeneity in the operational conceptions and a remarkable standardization of blades produced especially on obsidian. The typological analysis emphasizes the detailed description of tools manufactured (supports and retouch). The typology of the retouched tools, the morphometrie of the products exploited raw debited and without macroscopic traces of use are factors which vary between the three major materials and the two periods (LN and EBA).

This thesis presents a first archaeological introduction to the study of Byzantine ports, harbours and other coastal installations in the region of Thessaly. Thessaly not only constitutes an ideal region to gain equal information for the Early- to the Late Byzantine periods, but also to compare independent regional and imperial central building activities. However, in particular Thessaly’s maritime connectivity has never been studied in detail before. As such, a first step into a terra incognita, the thesis is divided into two main sections: In order to conceptualize the study of harbour sites, the thesis first sets up a framework for the definition, understanding and interpretation of the physical features of harbours and their function and purpose. Taking into account influencing environmental conditions, such as natural, economic, social and political components, this helps to determine an accurate hierarchical model and to illustrate the interrelationship between different types and forms of harbour sites. Subsequently, comprehensive archaeological investigations around the island of Skiathos and other harbour sites in Thessaly, executed in 2012 and 2013, are set against this theoretical groundwork. In contrast to the common approach of regional studies, where a first general overview is followed by individual detailed case-studies, the opposite methodology is undertaken in order to achieve a systematic study of the Thessalian harbours and the complexity of their network system. Consequently, the collection of data starts from the analysis of a distinct area of a region and continues with the broader regional picture of primary ports, secondary harbours and staple markets. Functioning as an important junction of the Aegean shipping lanes and being involved in regional as well as supra-regional trade and port networks, focus is therefore primarily dedicated to the island of Skiathos. A joint survey project in cooperation with the Greek Ephorate for Underwater Antiquities (EEA), the 13th Greek Ephorate for Prehistoric and Classical Antiquities and the 7th Greek Ephorate for Byzantine Antiquities was initiated by the author in 2012. A number of sites, including harbour installations and other coastal infrastructures, have been detected, documented and subsequently verified by geophysical prospections, using a Sub-bottom profiler and Side-Scan Sonar, in 2013. These have allowed to draw a clear historical picture of architectural developments, port networks and changes in the socio-economic connectivity of the area. Followed by a close investigation of further harbour sites throughout the entire region of Thessaly during two field seasons between 2012 and 2013, the detailed picture gained from the Skiathos survey project is brought to a wider context. This comparison finally allows an overall picture of the history and architectural developments of harbour structures and associated coastal sites, as well as general conclusions concerning the hierarchy and port network in the region during the Early to Late Byzantine periods. This has allowed a comprehensive understanding of the growth, use and decline of various ports, harbours and staple markets within Thessaly and has important repercussions for our understanding of wider social and economic changes that were occurring during these periods, such as the rise of the church as a powerful economic institution or the increasing activities of private entrepreneurs. In this way the submerged maritime heritage of Thessaly has provided a rich new resource with which to understand the cultural dynamics of the region as it emerged from its peripheral location to comprising major ports within the Roman maritime network and to stand out of the heart of the commercial route ways to and from Constantinople, as well as being part of the emergent networks of the western maritime states at the end of the period, such as Venice.