1 Heritage for the Future, Science for Heritage, A European Adventure for Research and Innovation 15 th and 16 th March 2022 European citizenship: an ancient heritage to fight for Emeline Priol ATER (graduate assistant), Ancient History, Université François Rabelais de Tours, France Keywords : citizenship, Federalism, Ancient Greece, agency, heritage Abstract : The integrations of cities in ancient Greece called sympolities (literally "citizenship with") gave rise to the pooling of citizenship throughout the territory concerned. Like European citizenship, sympolity can be seen as superimposed citizenship or, more exactly, as an extended citizenship. This agency ability led the citizens to act at regional level, so as European citizens. In this, extended citizenship is an active heritage which give a specific meaning to the concerned group. Both sympolitic and European citizenship are a driving force in the democracy diffusion.