It seems that they first arrived in Mesopotamia by ships, and settled in the Tigris and Euphrates because these areas were the best possible locations to live.
Most discoveries in recent years show how advanced these Sumerians were.
More than likely, the Sumerians were the first to use the bicycle, the first to invent irrigation systems, and apparently they were the first to invent writing.
Even today it is not known exactly where they came from. Some experts suspect that they came from somewhere in southern India.
Ancient Sumerian legends speak of an ancient god who attacked the human race because it was too imperfect and impure.
But it seems that there was also a protector of the people. It is about Enki who built an extremely advanced ship and took all the Sumerians on it.