It is usually accepted that Mesopotamia is the earliest knows civilization.
The Sumers were the first empire in the history, in Mesopotamia, but there was a civilization in Mesopotamia before them.
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Switzerland would be the correct choice i just took the quiz and got it right
Cahokia is a known historic site that can be found in Illinois, United States. Tribes lived in this place during the 17th century and they became the most influential urban community during this time. Mound Builders was also known as Cahokia tribe, they move to other place and decline to stay due to weather condition and tribal warfare. They started moving in different regions.
The answer is c. verdict!
