Who was the supreme God in ancient Persia?
Ahura Mazda ("Wise Lord") was probably the main god in pantheon of the pre-Zoroastrian Iranians. In both the religion of Darius, Xerxes and Zoroaster, he was worshipped as the supreme god to the point that the rest were almost excluded.
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Who, according to Herodotus, defeated and killed Cyrus the Great in 530 BC?
Artemisia I of Caria
What is the name of the national epic of Greater Iran?
The Epic about Gilgamesh