Historical Intercourse Between Religion's followers and Investigating Factors affecting it

The main question of this article is investigating factors that affect the intercourse between Religion's followers. According to the writer’s opinion, the most important factors affecting the form of intercourse between Religion's followers are: political powers and sovereignty and the form of their religious politics, the dominant cultural dialogues, the fundamentals of belief of a religion, the kind of understanding of leaders and religious priests and their conduct and finally the amount of national and racial fanaticism of religion’s followers. But more than considering this question and its answer, the writer has briefly investigated, in the first pages of the article, the intercourse of Christians and Zoroasters with each other in the centuries before Islam and also the intercourse of Polytheists and Jewish with Islam’s Prophet (peace be upon him) and Muslims and in contrast, the Prophet’s (peace be upon him) interaction conduct with them.