Because they had a insane army
Its the periodic movement if that what your asking for
Native Americans is the answer
The answer would be D: Russia signs a treaty with the Central Powers ending its participation in World War I.
Answer:
c: The Sumerians among the first writings of any kind c. 3500 BCE
Explanation:
Sumer or Sumeria is still thought to be the birthplace of slavery, which grew out of Sumer into Greece and other parts of ancient Mesopotamia.
