The Sumerians were the first great civilization in Ancient Mesopotamia. They were able to create the first city-states during 5000-3500 B.C. in the southern parts of Mesopotamia. It was their very first great achievement that led them to become a great civilization.
Because they are not perfect and act like humans.
Explanation:
Answer will be D They were developed by early historians
The Soviet Union wanted to spread its communist ideologies. By creating the Berlin Wall, Soviet Union prevented the possible escaping attempts that may have occurred by the civilians that were under control. The United States tried to prevent the spreading of communism by sending aid to countries that were in need. This performance was known as the Marshall Plan. In the end, Soviet Union was brought down because it was not as superior as the United States became. I hope this summed up an answer for you!