14. More addition
No preserved text directly connects 668 BC or any year of Assurbanipal's reign to an entry in the Eponym List. However, a double-dated document from the reign of his father Esarhaddon indicates Assurbanipal gained the throne in 669/68 BC.
The reasoning goes like this: A double-dated document equates Esarhaddon 5 to the year of eponym Banba. The Eponym List slots Banba's eponymy into 676 BC (assuming 763 BC was Bur-Saggile's year.) Lastly, several sources affirm Esarhaddon ruled for 12 years, and hence the rule of Assyria passed from Esarhaddon to his son Assurbanipal in 669 BC [676+5-12].
Doubled-dated documents pair a regnal year and an eponym
Many dated documents refer to Banba's eponymy
Banba's place in the Eponym List
A Babylonian chronicle notes the number of years Esarhaddon reigned16. Dating a king
A series of planetary observations fix the date of the 7th-century Babylonian king Kandalanu. The text logs the first and last visibilities of Saturn from Kandalanu Year 1 to Kandalanu Year 14 - enough information to establish that his reign began in 647 BC.
Though the Eponym List terminates 2 years before Kandalanu takes office, his dates are important for organizing the chronology of the warring brothers Assurbanipal and Shamash-shuma-ukin. The Saturn data furnishes the exact year 647 BC in which Assurbanipal crushed his brother's revolt and replaced him with Kandalanu on the throne of Babylon.
Observations of Saturn establish Kandalanu reigned from 647 to 633 BC
Conventional dates of the kings of Assyria and Babylon from 747 to 612 BC
Kandalanu may be Assurbanipal's throne name in Babylon 