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Fall of Babylon

Conquest of the Neo-Babylonian Empire by the Achaemenid Empire

  • 11 min read
  • 7 chapters
The fall of Babylon; Cyrus the Great defeating the Chaldean army. Mezzotint by J. Martin, 1831, after himself, 1819. Iconographic Collections Keywords: John Martin; Cyrus
Unknown author · CC BY 4.0

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Through Mesopotamia

Nabonidus, the final Babylonian king and son of the Assyrian priestess Adad-guppi, had ascended to the throne by overthrowing his predecessor Labashi-Marduk in 556. For long periods, he would entrust rule to his son and crown prince Belshazzar, whose poor performance as a politician lost him the support of the priesthood and even the military class, in spite of his capability as a soldier.

To the east, the Persians' political and military power had been growing at a rapid pace under the Achaemenid dynasty, and by 540, Cyrus had initiated an offensive campaign against the Neo-Babylonian Empire. In late 539, the Persian army secured a crucial victory in the Battle of Opis, thereafter triumphantly entering the city of Babylon.

Conditions

Several factors led to the fall of Babylon. The population of Babylonia became increasingly disaffected with Nabonidus. The priesthood of Marduk hated him because he suppressed Marduk's cult and elevated the cult of the moon-god Sin. He excited a strong feeling against himself by attempting to centralize the religion of Babylonia in the temple of Marduk at Babylon, and thus alienated the local priesthoods.

The military despised his scholarly tastes. He seemed to have left the defense of the kingdom to Belshazzar (a capable soldier but poor diplomat who alienated the political elite), while occupying himself with studies like excavating foundation records of the temples to determine their dates. He also spent time outside Babylonia, rebuilding temples in the Assyrian city of Harran, and also among his Arab subjects in the southern deserts. Nabonidus and Belshazzar's Assyrian rather than Babylonian heritage is also likely to have added to this resentment.

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