The Functioning of Social Gaps in the Late Sassanid Period and its Effect on the Escape of the Lower Strata of Iranian Society

The existence of social divisions in Sassanid society has always increased segregation as well as the passive movement of the lower strata of society and the emergence of an escape problem, which caused the fall of the Sassanids in one of the most sensitive regions of Southwest Asia. In this research, which is done using historical method and analysis of the theory of gap and escape in sociology, by asking the question, what was the role of social gaps in the event of escape from the Sassanid government and then its fall by examining the role of Iranian society? And in response to that; The research hypothesis is that the social gaps in the Sassanid government caused the escape of various layer 05s of society in society and due to the Sassanids did not follow the political custom of the Iranian government theory based on adherence to different ethnicities and religions, the grounds for internal and structural collapse. Findings The research shows that the natural existence of social gaps in Sassanid society with the behavior of the government has led to the beginning of their activities and then accelerated the process of escape. From the theoretical study of the gap and escape, it was obtained that the contradictions in the Sassanid society became gaps in the long run, and because the lower layers of this society had the lowest position; As the life of this dynasty increased, they became more and more interested in escapism; In a way, each components of the Sassanid society turned to its local and trade union interests without regard to the previous society and the external powers paid attention.