WORLD CIVILIZATION

Detailed explanation-1: -Achaemenes was himself a minor seventh-century ruler of the Anshan in southwestern Iran, and a vassal of Assyria. Around 850 BC the original nomadic people who began the empire called themselves the Parsa and their constantly shifting territory Parsua, for the most part localized around Persis.

Detailed explanation-2: -The ancient Persians were an Indo-Iranian people who migrated to the Iranian plateau during the end of the second millennium B.C., possibly from the Caucasus or Central Asia. Originally a pastoral people who roamed the steppes with their livestock, they were ethnically related to the Bactrians, Medes and Parthians.