645 BC — In the Chinese book of the Spring and Autumn Annals, it was recorded that on December 24 of this year there were five meteors seen in the sky over what is now northern Shanqiu County, Henan Province. It was the first Chinese recording of meteors.
644 BC — Cimmerian forces from Anatolia conquer Sardis and reach the peak of their power. King Gyges of Lydia has spent most of his 28-year reign fighting his southern and western neighbors in an effort to gain suzerainty over all of Western Asia Minor. He has helped the rebellion of Psamtik I, but he receives no support from his erstwhile Assyrian ally Ashurbanipal. Gyges falls in a battle against the Cimmerians under king Tugdamme.
644 BC — Ardys succeeds his father Gyges as the second Mermnad king of Lydia. During his reign he finds payment of tribute to Assyria preferable to rule by the Cimmerians, who will be routed a few decades later.
↑E.J. Bickerman, Chronology of the Ancient World (Ithaca: Cornell University Press, 1968), p.198
12Saggs, Henry (1962). The Greatness that was Babylon: A Survey of the Ancient Civilization of the Tigris-Euphrates Valley (1sted.). Sidgwick and Jackson.