Ancient astronaut’s first came to Earth many millennia ago. They were beings whose biology was similar to modern humans. They created modern mankind by mixing their genetic makeup with that of sub-humans. The purpose of mankind was to serve the ancient astronaut’s, principally by providing food and mining and construction labour. The ancient astronaut’s did not allow humans to view them – only their symbols (idols), suggesting that their appearance was frightening; however humans were occasionally permitted to see their emissaries, e.g. "geniuses" and "angels".
They also would not allow humans near them, except priests who had cleansed and covered themselves and spread a germicide, suggesting their susceptibility to earthly diseases. They apparently moved about the Earth in spacecraft using chemical fuel, and only landed on mountaintops or other rocky outcroppings; this reduced the dust and provided physical protection from humans, and disease control. The earliest sites had a cave under the rock that protected the priests during the coming and going of the spacecraft. Later they built, or provided humans with tools to build, cyclopean structures – huge earthen, baked brick, or stone ceremonial platforms and pyramids, which served as landmarks and as landing and feeding sites. Since they had little defence against earthly bacteria, they developed methods to nourish themselves with the vapours emanating from food and drink which humans provided and burned for them. The food and drink was provided through the custom of sacrifice, the burning of the meat and blood of animals, and sometimes humans, which the ancient astronaut’s demanded. These ceremonial and feeding sites were located all over the world, most on or near the current equator or near earlier pole-shifted equators. They taught humans agriculture, astronomy, engineering, and provided the first laws. They then departed from the face of Mankind.
