The Persians are not mentioned in history before the time of Cyrus; the attempt to identify them with the Parsua, a district in the Zagros chains south of Lake Urmia, often mentioned by the Assyrians, is not tenable.
The mountains of Fars may be considered as a continuation of the Zagros and run parallel to the shores of the Persian Gulf.
By the Zagros mountain range in what is now Kurdistan and on the S.
Conquered the rest of Media and advanced towards the Zagros chains and the Babylonian plain.
This vast flat, the modern El-Jezireh, is about 250 miles in length, interrupted only by a single limestone range, rising abruptly out of the plain, and branching off from the Zagros mountains under the names of Sarazur, Hamrin and Sinjar.
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