That's a very good description of Islam.
The ancestor of Cyrus, Aryaramnes, referred to Ahura Mazda as God on a tabernacle discovered in Hamadan in 1920. Aryaramnes inscribed thus: "The country which I possess was bestowed upon me by Ahura Mazda. By the grace of Ahura Mazda I am the monarch of this country. I pray that Ahura Mazda may help me." Similar inscriptions by Cyrus the Great and Darius the Great, refer to their allegiance with Ahura Mazda. Darius I has said "I worshipped Ahura Mazda. I am the King by Grace of Ahura Mazda."
Even Xerxes, Darius' son, following his father's beliefs, praises Ahura Mazda and says "where previously Daivas were worshipped .. I destroyed Daivas and proclaimed that Daivas shall not be worshipped." During his military exploits Xerxes incorporated part of Egypt into his kingdom and on the western side marched into Greece. This brought in several foreign influences and Zoroastrian theologians had to make compromises to assimilate several non-Zoroastrian divinities. Thus, Artaxerses II broke the tradition of exceptional praise to Ahura Mazda. At Persepolis he inscribed that "by the will of Ahura Mazda, Anahita and Mithra, I built this palace. May Ahura Mazda, Mithra and Anahita protect me from the evil." The cult of Mithra goes back before Zoroaster's time in Iran, but it is disputed whether Zoroaster accepted or denied Mithra. Yet, in contrast to his predecessors Cyrus and Darius, Ataxerxes II incorporated Mithra in the pantheon of deities, a long time after the birth of Zoroaster.
http://www.iranchamber.com/religions/zoroastrianism_under_achaemenids.php