Who Is Jam?

Significant and valuable researches in the field of Iranian mythology, about Jam specially, have been accomplished in recent years. Every researcher has seen to one or a few characteristic(s) of this polyhedral character from a point of view. One of the unanswered questions about Jam is the two instruments which Ahura Mazda gave to him to spread and develop of material world. In this article, it is tried to show the reality of these two by documentary reasons; and it is displayed some other unknown phases of this wonderful character through it. Mentioning the notices that are stated about Zolgharneyn in holy Koran, it shows similarities between Jam and Zolgharneyn, and on the basis of it could be proposed the theory of oneness of these two. Proving that Zolgharneyn is the same Indo-Iranian Jam, it could be said that Jam had been a historical character.