One of the most interesting theories regarding the origin of mankind was proposed by paranormal author Zecharia Sitchin and revolves around the Anunnaki (Sumerian: “those who came down from the heavens”). The Anunnaki correspond to the old Hebrew Anakeim and Elohim and the Egyptian Neter.
According to Sitchin, the Anunnaki came from Nibiru, the mysterious yet unconfirmed tenth planet in our solar system. They landed in the Persian Gulf area some 430,000 years ago and colonized our planet with the intention of mining monoatomic gold, which was scarce on Nibiru yet abundant on Earth.
Their mining operations went without a hitch for 200,000 years until their miners rebelled and the Anunnaki were left without their working force. Documents Sitchin claims to have translated tell of the efforts the Anunnaki undertook in search for new miners, efforts which ultimately led to the rise of Homo sapiens.
After unsuccessful attempts to splice animal and Homo erectus DNA, the Anunnaki chief scientists Enki and Ninhursag incorporated their own genetic material into H. erectus, fathering modern humans. Their success was shadowed by the fact that their new human slaves were sterile clones and as the demand for workforce increased, they genetically engineered mankind in order to be able to reproduce.