Cyril Marcigny, an archaeologist with Inrap, will speak about the bay of Mont Saint-Michel during the Bronze Age at the ecomuseum of the bay of Mont Saint-Michel in Vains. The Bronze Age, which lasted from around 2300 to 800 BCE, is a key period that marks the beginning of recorded history. During this time, ships carried goods across the English Channel, contributing to a thriving economic exchange between the region and England. The territory that is now France, and especially Normandy, was largely farmed, with roads connecting different areas and many farms operating on parcels of land. Recent archaeological excavations in the Manche department have offered new insights into the Bronze Age in this region. These discoveries allow researchers to discuss local production, including salt, copper, agricultural and pastoral surpluses, and fishing, all of which highlight the area's active role in trade networks that stretched from the North Sea to the Mediterranean. Marcigny’s conference will examine the economic prosperity of southern Manche and propose theories about how the Bronze Age economy functioned. The talk will include an overview of several regional archaeological sites, such as Jullouville, Saint-Pair-sur-Mer, Braffais, Saint-Jean-le-Thomas, Chausey, Fleury, Beslon, and Guilberville. Each of these sites will be placed in its historical and geographical context to provide a broader understanding of the region's past. By analyzing these locations, researchers can better understand how communities lived, traded, and interacted during the Bronze Age. This event at the ecomuseum aims to bring together the public and experts to explore the rich history of the area. It offers an opportunity to learn about the everyday lives of people in the Bronze Age and the significance of their contributions to the broader historical narrative. The findings from recent excavations are helping to reshape our understanding of this period, emphasizing the importance of local resources and trade in shaping ancient societies.