Airyanem Vaejah

Airyanem Vaejah (Avestan: Airyanəm Vaēǰah; Middle Persian: Ērān-wēz; Persian: Irānwēj; Parthian: Aryānwēžan, 'Expanse of the Arya') is considered in Zoroastrianism to be the homeland of the early Iranians and the place where Zarathustra received the religion from Ahura Mazda. The Avesta also names it as the first of the "sixteen perfect lands" that Ahura Mazda created for the Iranians.

Based on these descriptions, modern scholarship initially focused on Airyanem Vaejah in an attempt to determine the homeland of the Iranians or Indo-Iranians in general. Among these early attempts, the region of Khwarezm emerged as a likely locale. More recent scholarship, however, no longer agrees as to where Airyanem Vaejah might have been located or to what extent it is a mythological rather than a specific historical place.