Akkadian Empire -
Sargon of Akkad gradually conquered the area of Mesopotamia, between the Tigris and Euphrates river around 2300 BC. The Akkadians spoke a Semitic language, like the Amorites. During their rule, Akkadian became the spoken language of the region even though Sumerian was still used in written religious rituals or official government documents. Sargon, according to Sumerian literature, was born to an Akkadian high priestess and a poor father, maybe a gardener. His mother abandoned him by putting him in a basket woven out of reeds and letting it float away down the river (like Moses a thousand years later). But Sargon was rescued, made friends with the goddess Ishtar, and was brought up in the king's court.
When Sargon grew up, he built himself a new city at Akkad, and made himself the king of it. Then he gradually conquered all the land around him. In this way he built the first empire that we know of: the Akkadian Empire.