The city of Akkad was the seat of the Akkadian Empire (2350/2334-2154 BCE), the first multinational political entity in the world, founded by Sargon the Great, who unified Mesopotamia under his rule and set the model for later Mesopotamian kings to follow or attempt to surpass. The Akkadian Empire developed concepts invented by the Sumerians and introduced many of its own that would inform later dynasties and empires in the region, including:
This is a companion discussion topic for the original content at https://www.worldhistory.org/akkad/