Final answer:
The first civilizations emerged during the Ancient Mesopotamia era, such as the Sumerian civilization in present-day Iraq.
Step-by-step explanation:
The first civilizations emerged during the Ancient Mesopotamia era. This era spanned from around 4000 BCE to 2500 BCE. One of the earliest civilizations was the Sumerian civilization, which developed in the region of present-day Iraq. They built cities, developed a system of writing called cuneiform, and had a complex social and political structure.
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