For the first time, this exhibition presents to the public the discoveries made during the preventive archaeological operations carried out prior to the motorway developments on Strasbourg's Western Bypass. The main advantage of an archaeological operation of this kind is that it enables us to observe an area continuously and comprehensively . In total, 380 hectares were the subject of a diagnostic and 62.5 hectares of an excavation. These excavations have made it possible to discover, uncover and document the long, dense and complex history of this area. Archaeologists have identified traces of more than 200 human occupations from a wide range of periods, from the Middle Palaeolithic to the First World War. The exhibition looks at these discoveries from a number of different angles: from the formation and evolution of landscapes in the Palaeolithic to the intimacy of the graves of men, women and children. There is a wealth of previously unpublished evidence. They are profoundly renewing our knowledge and understanding of past societies. At the same time, the public is invited to discover the new methods and technologies that are helping archaeologists to gain a better understanding of these societies, their environments and the changing climate on the Rhine plain. This exhibition has been awarded the Exhibition label of national interest by the Ministry of Culture.