Persian Governor Timeline

Position of provincial governors is established by the Akkadian Empire.

Neo-Assyrian king Tiglath Pileser III revises and implements Akkadian model of government.

Akkadian/Assyrian system of government adopted by the Medes under Phraortes.

Achaemenid Empire of Persia refines the earlier system of satraps.

Reign of Mausolus, semi-independent satrap of Caria.

Seleucid Empire adopts Achaemenid system of Persian government but with Greek satraps.

Parthia adopts satrapy system but decentralizes the government which weakens the empire.

Sassanian Empire adopts satrapy system and founds its principles on religion of Zoroastrianism/Zorvanism.