What is the common point between a shard of prehistoric flint, an antique oyster shell, a contemporary tin can and the helmet of King Charles VI? They have all become waste, sources of valuable information for archaeologists. The exhibition covers, in an accessible way, the evolution of waste production and management and what this means for human societies. The archaeological findings illustrate how, over time, waste has been produced, processed and valued and how archaeologists now take it in order to make it talk.