What form of government was first used by the sumerians

During the early neolithic era, people relied on domesticated animals to provide each of the following except a. hides for clothes b. labor to pull plows c. manure for the soil d. meat, cheese, and milk for food

Prior to which amendment were slaves counted as three-fifths of a personality

1.     in what kind of government does a small group have a firm control over a country?