As that branch of UFOlogy has several flaws, and is dependent on the ETH, I am not inclined to back up its presuppositions.
What I am trying to demonstrate is that there have been encounters between UFOs and UFO entities throughout history, long before 1947.
R Like a real life Indiana Jones, maverick archeologist David Hatcher Childress has taken many incredible journeys to some of the oldest and most remote spots on earth.
R The branch of UFO research which could rightly deserve the appellation of "paleoufology" constituted a controversial field of investigation during the 1970's, when authors like Otto Binder (Unsolved Mysteries of the Past), Richard E.
Mooney (Gods of Air and Darkness), and Erich Von Daniken (Chariots of the Gods?
) wrote extensively on human/alien interaction at the dawn of recorded history and even earlier.
The sighting of strange objects in the sky may actually predate the emergence of modern man.
Perhaps the earliest depiction of cylindrical objects resembling spacecraft, with what might be their extraterrestrial occupants, are those carved on a granite mountain and on rocks on an island in Hunan Province, China.
They have been assigned a tentative age of 47,000 years, which puts them within the time-span of Neanderthal man, predating modern Homo sapiens.
R According to a few clues scattered throughout the world, alien beings could have very likely visited the earth long ago.
One clue of an ancient alien visitation is found in paintings from ancient cultures that depict strange humanoid creatures.
In addition, physical evidence of an ancient alien vistation is seen in artifacts from around the world that show a use of modern technology.