A long surviving section describes the events of Nabonidus's seventeenth and final year as king, when Cyrus invaded and conquered Babylonia. The celebration of the Akitu festival is recorded, indicating Nabonidus's return to Babylon. The chronicle provides no information on why Cyrus chose to invade Babylonia at that time but records that the gods of various cities "entered Babylon", apparently referring to an in-gathering of cultic statues in advance of the Persian invasion – perhaps a measure taken by Nabonidus to prevent the Persians capturing the divine idols.