First Indo-European Kings

Military action

Sargon of Akkad Is the first known Indo-European monarchr in the Near East.  His time (around 2500 BCE) is associated with huge changes all across that place below the Caspian and Black Seas, where Neolithic settlements had stewarded the landscape for over five millennia before.  This time corresponds to when descendents of Western Steppe Herders; the speakers of Proto-Indo-European languages took power.