Battles & Wars › Ancient world › Greco-Persian Wars
Achaemenid Persian Empire
550–330 BC· Empire, kingdom or state· Middle East & Africa
Well documentedSolid records, physical evidence or scientific consensus.
The first Persian Empire, founded by Cyrus the Great, which ruled from Egypt and Anatolia to the Indus River.
See it on the Battles & Wars map →What happened
Cyrus II, a Persian king from southwest Iran, overthrew the Medes around 550 BC, then took Lydia in Anatolia and Babylon in 539 BC. His successors added Egypt and parts of India. Darius I organized about twenty provinces called satrapies, standardized taxes and coinage, and built the Royal Road, about 2,500 km long, with relay stations for messengers. It ruled tens of millions of people, and generally left local religions, laws and elites in place.
Why it matters
It was the model multiethnic empire, ruling through local elites and roads; its wars with Greece and fall to Alexander shaped how the West saw 'the East'.
How we know
Persepolis and its administrative tablets, Darius' Behistun Inscription, the Cyrus Cylinder, and Greek writers such as Herodotus, who are often hostile.
Still debated
How tolerant Persian rule really was is debated; the Cyrus Cylinder is sometimes called the first human-rights charter, a claim most scholars reject.
Connections (5)
▸Fall of Nineveh opened the way for Achaemenid Persian EmpireMostly agreed
The connection
Nineveh's fall split Assyria's lands between the Medes and the Neo-Babylonian Empire. About sixty years later, Cyrus the Great of Persia overthrew the Medes and then, in 539 BC, took Babylon, inheriting both shares and uniting the Near East again under one ruler.
When and how
Iran and Mesopotamia, 612–539 BC; Cyaxares of the Medes, Nebuchadnezzar II of Babylon, then Cyrus II of Persia.
How sure are we?
The Babylonian Chronicles, the Nabonidus Chronicle on Cyrus' rise, the Cyrus Cylinder, and Herodotus all record the sequence.
Debates and open questions
How powerful and organized the Median 'empire' really was, and so how much Cyrus inherited from it, is debated.
▸Achaemenid Persian Empire invaded Greece in Greco-Persian WarsWell documented
The connection
Persia's expansion to the Aegean brought the Greek cities of Ionia under its rule. When they revolted with Athenian help, Darius I and then Xerxes launched invasions of mainland Greece, partly to punish Athens and partly to secure the empire's western frontier.
When and how
Ionia, Greece and the Aegean, 499–479 BC; Darius I's expedition in 490 BC and Xerxes I's in 480–479 BC.
How we know
Herodotus' account, Persian royal inscriptions listing Ionians among subject peoples, and Greek battle monuments.
Debates and open questions
Whether Persia aimed at outright conquest of Greece or just a ring of submissive states is debated; we hear little from the Persian side.
▸Achaemenid Persian Empire was conquered in Conquests of Alexander the GreatWell documented
The connection
Persia's wealth, roads and provincial system made it the prize. Alexander broke its field armies in three great battles, then took its capitals and treasuries. After Darius III was murdered by one of his own governors in 330 BC, Alexander presented himself as the Persian king's successor, keeping many governors and court customs.
When and how
Anatolia, the Levant, Egypt, Mesopotamia and Iran, 334–330 BC; Alexander against Darius III; Persepolis burned in 330 BC.
How we know
Greek histories, Babylonian records and the burn layer excavated at Persepolis confirm the conquest and its stages.
Debates and open questions
Whether burning Persepolis was planned revenge for Xerxes' burning of Athens or a drunken act is debated.
▸Battle of Gaugamela sealed the fall of Achaemenid Persian EmpireWell documented
The connection
Gaugamela was Persia's last chance to field a royal army able to stop Alexander. After the defeat, Babylon and Susa opened their gates and Persepolis fell. Darius fled into Iran and was killed by his own officer Bessus in 330 BC, ending the Achaemenid dynasty.
When and how
Gaugamela, near Mosul, Iraq, October 1, 331 BC; Darius was killed in northern Iran in July 330 BC.
How we know
Greek histories, and a Babylonian astronomical diary describing the battle, the Persian army's flight and Alexander's approach to Babylon.
Debates and open questions
Whether Darius could have kept fighting from eastern Iran, and why his commanders turned on him, are debated.
▸Babylonian siege of Jerusalem sealed the Babylonian exile ended by the Achaemenid Persian EmpireWell documented
The connection
Jerusalem's destruction sent much of Judah's elite into exile in Babylonia. About fifty years later, in 539 BC, Cyrus the Great of Persia took Babylon and let deported peoples return home and rebuild their temples. Some Judeans returned and built the Second Temple, finished about 516 BC.
When and how
Babylon, 539 BC. The Bible dates Cyrus's decree to 538 BC (Ezra 1); returns were led by Sheshbazzar and Zerubbabel.
How we know
The Cyrus Cylinder records his policy of returning gods and peoples, though it does not mention Jews; Ezra and Isaiah 44–45 praise Cyrus.
Debates and open questions
How many exiles actually returned, and whether Cyrus issued a decree specifically for the Judeans, is debated.