Civilizations of the Fertile Crescent: The Akkadians
From the city of Akkad came one of the first and most respected rulers of the ancient world, Sargon. He built the Akkadian Empire around 1900 B.C. by unifying the Sumerian city-states under his control and by building a strong army to control them.
Some sources of information on Akkad:
History for Kids
New World Encyclopedia: Akkadian Empire