The Akkadian empire spanned 800 miles and prospered for a century. Anthropologist Carla Sinopoli, who provides a useful definition of empire, lists the Akkadian Empire as among those lasting two empires.
Sinopoli on "empire" and "imperialism":
"[A] territorially expansive and incorporative kind of state, involving relationships in which one state exercises control over other sociopolitical entities, and of imperialism as the process of creating and maintaining empires."
- "Sargon Unseated"
Saul N. Vitkus
The Biblical Archaeologist, Vol. 39, No. 3 (Sep., 1976), pp. 114-117.
- "How the Akkadian Empire Was Hung Out to Dry
Science, New Series, Vol. 261, No. 5124 (Aug. 20, 1993), p. 985.
- "In Search of the First Empires"
J. N. Postgate
Bulletin of the American Schools of Oriental Research, No. 293 (Feb., 1994), pp. 1-13.
- "The Archaeology of Empires"
Carla M. Sinopoli
Annual Review of Anthropology, Vol. 23 (1994), pp. 159-180