Arran (Caucasus)
IRAN HISTORICAL TERRITORIES
Arran (Middle Persian form; Persian: ارّان), also known as Aran, was a geographical name used in ancient and medieval times to signify an Iranian region which lay within the triangle of land, lowland in the east and mountainous in the west, formed by the junction of the Kura and Aras rivers, including the highland and lowland Karabakh, Mil plain and parts of the Mughan plain. In pre-Islamic times it corresponded roughly to the territory of modern-day Republic of Azerbaijan.