Why is the Akkadian Empire considered a turning point in Mesopotamian history?

The Akkadian Empire, established by Sargon around 2334 BCE, is considered a major turning point in Mesopotamian history for several foundational reasons:

• First Territorial Empire: It marked the first time an empire arose on Mesopotamian soil, as Sargon united various independent city-states into a single political entity that extended its reach far beyond the Sumerian heartland into Syria, Anatolia, and Elam.123
• Shift in Kingship and Loyalty: The empire fostered a new conception of kingship characterized by secular grandeur. Personal loyalty to the monarch and his successors began to replace the traditional, localized patriotism of the old city-states.4
• Cultural and Linguistic Influence: Under the Akkadian kings, the Akkadian language gained literary prestige, becoming the equal of Sumerian. It was adapted to the cuneiform writing system, and the "Old Akkadian" style of writing and art—including sculpture and cylinder seals—reached new heights of aesthetic perfection, serving as a model for later generations.254
• Military Tradition: Sargon is widely regarded as the founder of the Mesopotamian military tradition, setting a precedent for future empire-building in the region.3