Esfarayen is one of the focal points for residence of Aryan tribes after entering into Iran.

The mountainous lands of this area first encouraged Aryan tribes to settle in this region after their immigration to Iran.

The account tells that King Haosravah united the various Aryan tribes into one nation (Yasht 5.49, 9.21, 15.32, 17.41).

The Germans, especially at that time, were a highly gifted Aryan tribe in the full vigour of development.

Later the area was occupied by Aryan tribes related to the Indo-Aryans and Iranian Peoples.

Dāsa - a group identified as the enemies of the Aryan tribes in the Rigveda.

Over a millennium ago, the Aryan tribes had marched south from the steppes, in their great epic of conquest.

The Bhāratas, an Aryan tribe of the Rigveda 2.

Esfarayen, among other cities of the province, was one of the focal points for residence of the Aryan tribes after entering Iran.

A few notables of these Aryan tribes were the Persians and Medes.