One king of this nation built a stele commemorating his victory over the Lullubi people, and defeated the King of Magan; that man, Naram-Sin, assumed the title "King of the Four Quarters," and his attack on the city of Nippur was allegedly the cause of a curse that resulted in the downfall of this nation. The most famous leader of this nation claimed to have been a gardener for a man named Akki, and served as a cupbearer 
One king of this nation built a stele commemorating his victory over the Lullubi people, and defeated the King of Magan; that man, Naram-Sin, assumed the title "King of the Four Quarters," and his attack on the city of Nippur was allegedly the cause of a curse that resulted in the downfall of this nation. The most famous leader of this nation claimed to have been a gardener for a man named Akki, and served as a cupbearer for Ur-Zababa. For 10 points, name this empire that, under leaders such as Sargon the Great, conquered most of Mesopotamia.
One king of this nation built a stele commemorating his victory over the Lullubi people, and defeated the King of Magan; that man, Naram-Sin, assumed the title "King of the Four Quarters," and his attack on the city of Nippur was allegedly the cause of a curse that resulted in the downfall of this nation.
Akkadian Empire