They left local government to the peoples they ruled, establishing Persian provincial governors to oversee and protect them, with central control by the king and his council.
Alexander the Great conquered the Persian Empire and converted it into an empire of his own, not to destroy the Persians but to convert them to Greek culture.
He allowed people within the empire to worship their own religion
Alexander the Great.
The Persians and the Medes, under King Cyrus the Great.
king Cyrus was the ruler who united the Persians into a powerful kingdom
Persians
Persians
The Persians under their king Cyrus the Great.
Alexander the great helped the Greeks take out the Persians
Cyrus the Great led the Persians, then subject to the Medes, into dominating them, and with this combined strength took over the Babylonian Empire and turned this into an empire of his own.
When Alexander the Great was crowned king he began his campaign to create his empire. He fought and defeated the Persians and extended his empire into India.
When Alexander the great took it over by force 334-331 BCE.