Persia, originally a vassal state of Media, overcame it and the two began the conquests that created the Persian Empire from 550 BCE. This empire stretched from today's Libya through the Mile East to Central Asia and today's Pakistan.
An empire is an empire, a war is a war.
The Persian Empire stretched from Libya to Central Asia. The Greek world stretched from Western Europe to Asia Minor.
The Persian Empire was comprised of 20 provinces ruled by the king and his council. There was no Greek empire until Persia was conquered by a united Greek alliance under Macedonian Hegemony. In Greece, there were over 2,000 independent city-states, each with their own government, who formed loose and changing alliances and shared the same Hellenic culture.
Cyrus the Great was the founder and first king of Achaemenid Persia. Darius was the son-in-law of Cyrus and was the third king of the Persian Achaemenid Empire, ruling the empire at it's greatest.
The geography remained the same - continents did not move and mountains and rivers went on unheeding. Politically, Alexander simply took over the Persian Empire and converted it into an empire of his own.
The Achaemenid dynasty ruled the Persian Empire 559-430 BCE, after which it was taken over by the Macedonian King Alexander the Great.
Persian's come from Iran. Iranian/Persian same thing.
From Libya to Central Europe - the same as the Persian Empire from whom he conquered/stole it.
The Persian Empie at its height was roughly the same size as the continental United States.
Chou dynasty and Persian Empire
He had everyone in the empire use the same money system of weights and measurements.
The earth has not changed over that period.