"History of Rome. Book IV. The Revolution" is a work by the outstanding German historian Theodor Mommsen, where the author examines the period of Roman history that determined the political and social changes in the Roman Republic. In this book, the reader will find a detailed analysis of key events such as civil wars, reforms and power struggles between different political forces. Mommsen details internal conflicts, shows the influence of great figures on the course of history, and examines the causes and consequences of revolutionary changes in Rome. This book is an important source for understanding the Roman Empire and the formation of its political system. Various facts, analysis and deep conclusions make Momsen's book not only a valuable document of the past, but also a fascinating source of knowledge for everyone who is interested in the history of Rome and the formation of modern events through the prism of the past.