Indo-Europeans and Indo-Iranians, Origin and Migration; An Archeological Study

The study of Early Indo-European and Indo-Iranian people is always one of the challenging subjects of study in Near East and Central Asia. The question of their early homeland and also their directions of migration is one of the subject matters about which scholars have differentiated points of view. The goal of this study is the review of these points of view regarding the original homeland and the time of their migration from this homeland to the time of their arrival in Iran. Most of the information comes from books and articles about archaeology of Eastern Europe, Central Asia, Iran and Afghanistan. In addition, there are some discussions on linguistic studies. The study shows that, in the 5th and 4th millennia BC, early Indo-Europeans were living in Caspy-ponti steppes and late in the 3rd millennium BC they started migrating to the east and west (Central Asia and Europe) and, finally, in the second half of the 2nd millennium BC, early Indo-Iranians, began to migrate to Iran.