539 BC
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The year 539 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 215 Ab urbe condita. The denomination 539 BC for this year has been used since the early-medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Events
By place
Near East
- September 25–28? – Battle of Opis: Troops of the Persian Achaemenid Empire under Cyrus the Great decisively defeat those of the Neo-Babylonian Empire.
- October 29 – Fall of Babylon: Achaemenid troops under Gobryas enter Babylon unopposed. Cyrus enters the city, incorporating the Neo-Babylonian Empire into the Achaemenid Empire and turning the latter into the largest in the history of the world up until that point.
Births
Deaths
- Nabonidus, last king of Babylon
- Belshazzar, co-regent of Babylon