These stories are commonly found in Sumerian mythologies. By the time the Anunnaki come to earth, they disturb the natural rhythm of the earth, disrupting the nature that is on earth.
They are a nation that has very advanced technology, and they have been doing genetic engineering to humans in a very long time in human history.
They are a nation that employs humans as slaves who facilitate all their work on earth.
In another book written by Laurence Gardner, entitled "Genesis of The Grail Kings" it is said that Anunnaki's role for man is like the role of parent and teacher for mankind.
For the Sumerians, their purpose in life was to provide service to the Anunnaki, to provide them with food, drink, and a pleasant environment for them. In return for the Sumerians, they are educated about life lessons, universe knowledge, teachings about the universe, social life and other science they master.
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