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They were so important because it led to the destruction of the Persian Empire.
The Persians
The Persians to only the west - what is today's Pakistan. They brought a veneer of Persian culture to the sub-continent.
Persian's come from Iran. Iranian/Persian same thing.
Persians rock
Persians were Muslims.
It expanded the Persians.
The Persians attacked the Greeks in the Persian war
Iran (Persians)
Darius I.
The Persians were Aryans.
The Persians.