The reasons to oppose slavery were morality, and the hash treatment of slaves
In about 3200 BC the two earliest civilizations develop in the region where the southwest Asia joins Northwest Africa. Great rivers are a crucial part of the story. the Sumerians settle in what is now southern Iraq, between the mouths of the Euphrates and the Tigris
number three is the answer
They believed that the world was standing still and that it is curved. That is why on one side it seems as if the sun is rising and on the other it seems as if the sun is setting. They also believed later when Ra was created that it was related to him and that the sun coming out is his birth. There are many myths regarding this.
