François Hartog explores crucial moments of change in society's "regimes of historicity," or its ways of relating to the past, present, and future. Inspired by Hannah Arendt, Reinhart Koselleck, and Paul Ricoeur, Hartog analyzes a broad range of texts, positioning The Odyssey as a work on the threshold of historical consciousness and contrasting it with an investigation of the anthropologist Marshall Sahlins's concept of "heroic history." He tracks changing perspectives on time in Chateaubriand's Historical Essay and Travels in America and sets them alongside other writings from the French Revolution. He revisits the insights of the French Annales School and situates Pierre Nora's Realms of Memory within a history of heritage and today's presentism, from which he addresses Jonas's notion of our responsibility for the future.