The change and evolution of the nature and structure of the government from the constitution to the Pahlavi establishment (with emphasis on the concept of Thermidor)

The purpose of this article is to understand and explain the nature and structure of  government in Iran after from Mashrooteh to the Pahlavi government. In order to apply Thermidor in the article, the second part of Crane Brinton's theory is used. The said theory deals with the four stages of the post-revolution (moderate, radical, terror and Thermidor). The question of the research is: What process and stages did the nature and structure of the state go through from the constitution to the Pahlavi establishment (1304-1285) and what is the most important change and evolution of it? Findings show that during the period of time, government went through four stages leading to Thermidor. As a result, the internal nature of the state did not change and the structure of the state changed from the traditional tyranny in the Qajar period to the modern absolute state with the Pahlavi establishment. The research has been carried out in terms of the basic purpose and qualitative type, relying on the historical method, using content analysis and citing historical evidence.