This introduction presents an overview of the key concepts discussed in the subsequent chapters of this book. The book addresses the issues that have so far remained at the margins of this rich critical debate, in the belief that one of the questions at stake when discussing Byron's engagement with history is not so much his endorsement of a specific view or philosophy of history. Alice Levine and Charles Robinson have, in turn, analyzed Byron's use of formal elements borrowed from historical textuality, that is, footnotes. The book focuses on specific moments of the historiographical debate that are relevant to the historical discourses with which Byron interacted. It discusses that the Italian heritage, notably to late-Medieval and Renaissance Italy, which indeed figures prominently in Byron's historical discourses, reflecting the widespread interest in themes from Italian past. The book traces Byron's use of various accounts of the Sack, focusing on Benvenuto Cellini's Autobiography and provides the model of historical narration.