During the European Heritage Days (JEP), which took place on Saturday 19 September and Sunday 20 September 2026, Inrap, the French National Institute for Preventive Archaeological Research, organized a range of events across Île-de-France. These events aimed to raise public awareness about archaeology and the importance of preserving cultural heritage. Inrap's activities included exhibitions, workshops, guided tours, and public talks, offering opportunities for people to learn about the past through various interactive experiences. At the Musée des Arts et Métiers in Paris, Inrap archaeologists presented an exhibition titled « À la découverte de l’archéologie » (Discovering Archaeology). Visitors could explore the field of preventive archaeology, which involves uncovering and documenting historical artifacts before construction projects begin. The exhibition was accompanied by an interactive tool called the archéomaquette, which allowed attendees to visualize archaeological processes. The event was open to the public from 10 am to 5 pm on both days. In La Grande Paroisse, Heidelberg Materials quarry hosted an open day featuring Inrap archaeologists Rebecca Peake and Valérie Delatte. The event included an interactive game and an exhibition titled « Les Grandes Périodes » (The Great Periods), which showcased different historical eras. The open day was held on Friday 18 September (reserved for schools) and Saturday 19 September, from 9 am to 4 pm. In La Ferté-sous-Jouarre, Stéphanie Lepareux-Couturier led a workshop on the study of archaeological remains from mills and watermills. An exhibition featuring work by three first-grade classes from the Pâtis school was also displayed from 8 to 26 September. In Bussy-Saint-Georges, archaeologists Marion Perrault and Eddy Sethian presented the results of excavations from 2025 and 2026, which documented human occupations from the Mesolithic to the medieval period. The conference took place on Saturday 19 September at 3 pm at the Médiathèque de l’Europe. An exhibition titled « The stages of preventive archaeology » was also on display at the same location from Tuesday 1 September to Saturday 26 September, with free entry during library hours. Across Île-de-France, Inrap's events during JEP 2026 focused on themes such as « Heritage of photography » and « Heritage at risk: revive, resist, reimagine. »