Cyrus the Great succeeds his father Cambyses I of Anshan. In the year of his accession (560–559 BC), the Babylonian king Neriglissar commands the declaration of an intercalendary month, so that his first year of kingship begins on Nisan 1 of 559 BC.
Geopolitics & Diplomacy
Cyrus the Great succeeds his father Cambyses I of Anshan.source
In the year of his accession (560–559 BC), the Babylonian king Neriglissar commands the declaration of an intercalendary month, so that his first year of kingship begins on Nisan 1 of 559 BC.source