The book is dedicated to the turning point in the new history of Vietnam. The military victory over the Taishon peasant dynasty of the historically promising part of the feudal class associated with the urban strata made the beginning of the 19th century. the time of the most dynamic development of Vietnamese society at the stage of late feudalism. The same victory gave rise to a lot of contradictions: acute social conflicts that caused the confrontation of hostile groups, the clash of political programs and methods of their implementation.