The Medes Unite and Help Bring Down Assyria
A confederation of Iranian tribes becomes the region's first real Iranian-speaking power, decades before Persia takes the stage
Quick facts
- Region
- Zagros mountains and Ecbatana, western Iran
- Key event
- Sack of Nineveh, 612 BCE, with Babylon
- Last Median king
- Astyages (r. 585 to c. 550 BCE)
- Relationship to Persia
- Persians were Median vassals before Cyrus
What happened
The Medes were Indo-Iranian-speaking clans from the Zagros mountains of western Iran, originally a loose collection of tribes rather than a unified kingdom. Constant Assyrian raids and, later, invasions from Urartu and the Scythians pushed the Median clans toward unification through the 8th and 7th centuries BCE. That unified Median military became a superpower in 612 BCE when it joined the Babylonians in sacking Nineveh and destroying the Neo-Assyrian Empire, the dominant power of the ancient Near East for three centuries. By the time King Astyages ruled from Ecbatana (r. 585 to c. 550 BCE), Media controlled a swath of territory stretching toward Anatolia, with the Persians to the south as vassals under Median overlordship.
Why it matters
Media, not Persia, was the great power of Iran for most of the 7th and 6th centuries BCE, and the Persian dynasty that follows starts out as a subordinate people inside the Median sphere. Ancient writers, especially Greek ones, kept calling the Persians "the Medes" for generations after Cyrus took over, a habit that only makes sense if Media had the stronger reputation first.
How we know
The main narrative comes from Herodotus, writing a century later, cross-checked against Babylonian chronicle tablets that independently record the fall of Nineveh in 612 BCE and list the Medes among the attackers.
Sources
- Livius.org (Jona Lendering). Medes · Reputable sourcelivius.org · The domain "livius.org" is on our Reputable source registry.
- World History Encyclopedia. Medes · Reputable sourceworldhistory.org · The domain "worldhistory.org" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
See something wrong? . Corrections with a source get fixed fastest.
Part of a timelineAncient Persia27 events · Three empires in a row, Achaemenid, Parthian, and Sassanid, ran the largest state the ancient world had seen and left cuneiform, coinage, and a fire religion behindView all →