North and east of Iran, to the east of the Caspian Sea, and west of the Himalaya Mountains’ foothills, up to the Altai Mountains in central Russia, is a vast desolate and dry wilderness, larger than the area of Iran, where today are the countries of Turkmenistan, Uzbekistan, and Kazakstan, mostly unsuitable for farming, because of the lack of rainfall there, and suffering brutally cold winters, high winds, and blustery, short, yet scorching summers.
But that was the paradise of Airyana Vaejo, the ancient homeland of the Aryans, some of whom moved south, all the way to India, when the climate and thereby the ecosystem changed with the end of the Ice Age. Uzbekistan means Land of King Uz, who was a son of Aram, a son of Shem in Genesis 10 in the Bible, and Job lived in the Land of King Uz (who probably was still living then), when that land, as described in the Bible in the book of Job, was lush pastures, forests, and streams, whereas now, it is mostly barren land, the streams dried up, a completely different place than described in the book of Job from circa 2000 B.C.
Most scholars agree that the Persian/Aryan land of Airyana Vaejo (Eriene Veedjo), discussed in the Vendidad and Avesta, was to the north of Iran, just as I outline here, but it’s a mystery to them how that now barren vast expanse of dry windblown wilderness could have been the land of plenty described in the ancient books, because they don’t realize or admit that the Ice Age ended much later than they advertise, it ended circa 1500 B.C., when the Exodus occured, and when the Aryans fled from their homeland in Central Asia down to India, some of them settling in eastern Iran and western Afganistan on the way, where that land was later called Aria by Herodotus and Strabo, about a thousand years after the end of the Ice Age and the mass migrations which are documented to have been occuring in the centuries after the Ice Age, when the so-called Bronze Age collapsed, ushering in dramatic changes in populations and political and military spheres of influence. See http://genesisveracityfoundation.com.
The Avesta says that the winters in Airyana Vaejo went from short and mild to long and brutally cold, and the summers more severe, exactly what happened when the Ice Age ended, when the dense cloudcover of the Ice Age dissipated (because the oceans had cooled down to today’s temperatures), and so, the summers became hotter, with the winters much colder and longer, as the dense cloudcover, which provided much rainfall and shielding from the sun in the summer, and insulation in the winter, the conditions there during the Ice Age, when it was a land of plenty.