Cyrus Takes Babylon: The Nabonidus Chronicle
The Chronicle of Nabonidus tells us the story of the rule of the last king of independent Babylonia. The text is badly damaged and contains many lacunas. However, it makes clear that the rise of Cyrus was not unexpected. We meet him for the first time in Nabonidus' sixth year (=550 BCE), when he defeats the Median leader Astyages. A second reference can be found in year nine, when he defeats the king of a country that can not be identified (547 BCE).