Mesopotamia By goowen Period: Jan 1, 1000 to Dec 31, 6000 Mesopotamia Jun 22, 1000 Neo-Babylonian Jul 5, 2000 Neo-Assyrians Oct 4, 2000 Iron Age Nov 10, 3000 Assyrians Sep 12, 4000 Babylonians Aug 20, 5000 Akkadians Jan 1, 6000 Sumerians