Final answer:
The major Mesopotamian civilizations, such as those centered around the cities of Eridu and Uruk, focused on crops like wheat and barley, not corn. Corn was a staple in Mesoamerican cultures, not Mesopotamian.
Step-by-step explanation:
The question seems to be asking about the development of agriculture in ancient civilizations, specifically those of Mesopotamia. However, the reference to a 'corn-centric' culture may indicate a mix-up with the cultures of the Americas, where maize (corn) was indeed a central crop.
The major Mesopotamian civilizations, such as the Sumerians, are known for a number of firsts, including urbanization and writing, but they were not centered around corn, as this crop was domesticated in Mesoamerica. Instead, these Mesopotamian cultures, including the city of Eridu and Uruk, were largely focused on wheat and barley as staple crops.
It is in Mesoamerica where we see the rise of a corn-centric culture, with maize becoming the primary agricultural product and leading to the development of complex societies.
The major Mesopotamian civilization that is considered to be the first corn-centric culture is the Sumerian civilization. The Sumerian city of Eridu, which bordered the Persian Gulf, is believed to be the world's first city. The surplus of storable food created by their corn-centric economy allowed for a settled population and a division of labor with specialized arts and crafts