The book covers the period from the 16th century to the present day and includes information about the most important events, personalities, and cultural artifacts of the time. The book "Козацька старшина Гетьманщини Енциклопедія" is a comprehensive historical encyclopedia that chronicles the history of the Cossack elite of Gethman-ship in Ukraine, spanning from the 16th century to the present day. This encyclopedia provides an in-depth look at the most significant events, personalities, and cultural artifacts of the time, offering readers a thorough understanding of the evolution of technology and its impact on society. The book is divided into several sections, each focusing on a specific aspect of Cossack history, such as politics, culture, religion, and social life. The first section, "Ancient and Medieval Period explores the origins of the Cossack movement and its early development, including the role of the Cossacks in the Ukrainian-Polish War and the impact of the Mongol invasion on their society.

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