The monograph on the example of Paraguay explores some little-studied aspects of the revolutionary process in Spanish America in the first half of the 19th century. A significant place is occupied by the analysis of the social content of the Spanish American Revolution. Particular attention is paid to assessing the nature and class essence of the Paraguayan dictatorship, clarifying the reasons and goals of its isolationist policy. The author's conclusions are essential for a correct understanding of the general patterns and specific regional features of the liberation movement of the XIX century. in the American colonies of Spain.