هدایت بهنام پور

The adaptation of sociological theories to historical subjects, despite the problems it encounters, is something that new historiography should start to do for dynamism and to avoid pure quotation of historical events and it should enjoy the results of other fields studies, especially sociology. In this case, System Theory has an important position in appropriate analysis and explanation of historical events. This essay studies Iran’s traditional relations and British East India Company in Zand era based on System Theory in order to analyze the various results of these two system’s relation. For this purpose, written contracts between them, have been the basis of assessment. Karim Khan expected to flourish commerce and return security to Iranian coast of Persian Gulf, via commercial relations with British East India Company. On the other hand British East India Company aimed to self allocate the benefits of trade with Persian Gulf and eliminate other rivals. In line with this review, objectives, political and economic outcomes this business relationship for both, be determined.