The land of two Iraqs (ارض العراقين) :
Between the 11th -16th century AD, the name used to describe the regions on both sides of the Zagros mountain range from the western Iranian plateau to the alluvial plains of the Tigris and Euphrates. The Arabs Iraq (عراق العرب), from west of the mountain range to the east of Levant (بلاد الشام), and the Ajams Iraq (عراق العجم), that included the highlands of northern Mesopotamia from Isfahan to Kermanshah, and Qazvin, and further up north to Azerbaijan.
Ajam is a term used to describe non-arabs and primarily Persians, Kurds, and Azeris.
This map of the World, was prepared by Mahmoud Kashghari, an 11th century Turkish historian and linguist.