In Ancient Aliens: Extraterrestrial Visitations from Prehistoric Times to the Present, Jacques Bergier, a French scholar, states unequivocally that extraterrestrial intelligence have often interfered in human history. And he proves it!  

To a world titillated by Chariots of the Gods, Jacques Bergier brings new documentation and insight. Extending his observations from the era of the dinosaurs to modern times, Bergier identifies and expands upon items that science has too readily dismissed as “nonsense” or “explained” quickly by categorization.  

How did a whole race of prehistoric creatures - the dinosaurs - disappear? Serious scholars today are advocating the theory that the dinosaurs were wiped out in a cosmos-originated cataclysm.  

And what about those mysterious - and unexplained - "manmade" items that are discovered during mining operations, finally released after being locked in coal deposits eons old? They are not the products of random organic phenomena. They give evidence of being manufactured in years past by cultures perhaps alien to Earth.  

And so it goes - right into modern times. One cannot simply discount all the sightings of UFOs, even of strangers on the Earth, as 21st-century man so cavalierly has done. The pieces of evidence - and the reputations of those who reported their experiences - are too weighty to allow such unscientific reactions.  

Extraterrestrial visitation is not a crackpot idea. As we discover more about ourselves and our past, and develop the technology that allows us to become space visitors ourselves, it becomes increasingly certain that extraterrestrial visitation on Earth has been an ongoing phenomenon.  

For his part, Jacques Bergier provides more than clues to the effect; he supplies incontrovertible evidence.