The History of Extraterrestrial Contact in Ancient Greece. Erich von Daniken's last book changed the way generations have looked at mythology, ancient history, and the possibility of advanced beings from other worlds visiting earth. Now he tackles the history of Greece and again challenges our beliefs about how our civilization arose. Using archaeological research and evidence from the writings of Plato and Aristotle, he suggests tha the Greek 'myths' were, in fact a reality and that the Greek gods were actually extraterrestrials.