Geo-chronological Distribution
WEST	EAST
	ca. 2700 BC ___
possible pre Old Akkadian period (before 2300 BC) ___
Period of Puzur-Sushinak (circa 2150-2100 BC) ___	End of the 3rd and beginning of the 2nd millennium BC ___	End of the 3rd millennium BC ___
Possible 21st century BC ___
Period of Itatu I (circa 1970 BC) ___	Beginning of the 2nd millennium BC ___
Period of Eparti II and Shilhaha (circa 1950 BC) ___
Period of Zemt-Akone I (circa 1920-1900 BC) ___
Period of Pala-ishan (circa 1900-1880 BC) ___	Unknown ___