About the book: 2023 / The third volume presents the fourth part of the ongoing philosophical and historical research. In this part, a concrete speculative synthesis is carried out - specific historical facts and events are considered on the basis of the life cycle model of civilizational dynamics. In accordance with this model, the structural link in the life cycle of the Eurasian civilization - Russia is the era of political civilization - the era of state dominance in the organization of social life of the Eurasian civilization - Russia. Military-political empire. "Day four." This era covers the period from the 14th to the 19th centuries. The content of the historical era under consideration is revealed, its meaning and purpose, place and role in the process of formation and development of the Eurasian civilization - Russia. For those who find it interesting.