Sumerians: The Most Advanced Civilization in Ancient History, Sumerians A Future Living Civilization - From Foundation to Collapse - History, Bronze age, Bronze Age empires, ancient history, Sargon the Great, Akkadians, documentary, first civilizations, Sumerians documentary, Sumerian state, Sumerian tablets, cuneiform script, Hammurabi, Sargon, Sumerian religion, Sumerian political history, Mesopotamia, Gilgamesh, Fall of the First Cities,