The book "The History of the Decline and Fall of the Roman Empire. Volume 4" by the famous British historian Edward Gibbon is a huge work that explores the complex events that led to the downfall of the great Roman Empire. The fourth volume of this epoch-making work covers the period from Late Antiquity to the Middle Ages, the decisive stages of the history of the empire, its disintegration and transition to new state formations. Gibbon follows a strictly scientific approach, revealing the reasons for the fall of the Roman Empire in the broad context of politics, culture and military activity. This book is an important source for understanding not only the history of Rome, but also the general patterns of development of states and civilizations.