Question

Which factor led to the collapse of the Babylonian Empire?

Answer 1

In 539 BCE the empire fell to the Persians under Cyrus the Great at the Battle of Opis. Babylon's walls were impregnable and so the Persians cleverly devised a plan whereby they diverted the course of the Euphrates River so that it fell to a manageable depth.

Answer 2

it was conquered by the Achaemenid Empire in 539 BCE.

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