The 12th Planet/Shar/Marduk

The planet Shar is the home planet of the Nefilim, which revolves around the sun on an elliptical orbit of 3,600 years.

Agriculture and Husbandry

Sitchin claims that agriculture and husbandry arose suddenly and inexplicably among men and that the best explanation is that the alien Nefilim gave humans the advanced technology to farm and raise animals.

Mesopotamia/Sumer

Mesopotamia is the location of Sumer, the oldest known human culture. Sitchin claims that Sumerian myths are true accounts of aliens visiting Earth.

The Asteroid Belt

Sitchin claims that Sumerian texts reveal the asteroid belt in Earth's solar system is the debris left over from half of a previously existing planet that was hit by Shar. The other half was knocked to a lower orbit and became Earth. He calls the asteroid belt "heaven."

Africa

In Sitchin's account, the Nefilim came to Earth to mine...