Sargon of Akkad was none other than Cain, the son of Satan. Nimrod was not Sargon. That is Nimrod was definitely not the first world ruler to go by that name, if he even did call himself "Sargon." (Sargon most likely means "King Cain.")
Cain, born sometime in the early 4th millennium before Christ, came to prominence about 3800 BC. He probably died a little bit before 3114 BC, when the Mayan calendar begins.
Cain/Chiun/Chin (as in China)/Khan's descendants were those Pharisees--including lawyers and scribes--that Jesus Christ confronted, calling them a brood of vipers. Their progeny rule the world today: they are those who say they are of Judah and are not, but do lie.