Published by Global Banking & Finance Review®
Posted on January 11, 2026
4 min readLast updated: January 20, 2026
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Erich von Daeniken, known for ancient alien theories, dies at 90. His book 'Chariots of the Gods?' sparked global debate despite criticism.
ZURICH, Jan 11 (Reuters) - Best-selling Swiss author Erich von Daeniken, who built a lucrative career on his argument, rubbished by scientists and archaeologists, that humanity owes much of its development to the intervention of extraterrestrials, has died aged 90.
"Chariots of the Gods?", published in 1968, sold millions of copies with its thesis that advanced aliens had repeatedly visited Earth, leaving their mark in the form of Inca and Egyptian ruins, cave drawings and other physical monuments.
"It took courage to write this book, and it will take courage to read it," the work begins.
It acknowledged that scholars would dismiss it as nonsense, but insisted that "the past teemed with unknown gods who visited the primeval earth in manned spaceships".
SCHOLARS DISMISS THEORIES AS PSEUDOSCIENCE
Academics wrote books refuting his theories, criticising him as a purveyor of some of the more fantastical notions of pseudoscience. German news magazine Der Spiegel even had a 1973 cover story titled "The Daeniken Hoax".
Nevertheless, legions of fans snapped up his more than 40 books and watched his television specials and documentary films. The over 70 million books that he sold were translated into more than 30 languages.
Von Daeniken spent the early part of his working life managing a hotel in eastern Switzerland, where a fraud conviction landed him in jail for 18 months.
But as his book took off, he emerged from prison as a best-selling author.
Still, he never presented the smoking gun to fulfil astronomer Carl Sagan's famous adage that "extraordinary claims require extraordinary evidence".
"He ... says that the astonishing astronomical information ancient civilizations, such as the Mayan, had is proof that there were some space travelers around to teach it to them. This fits in with his general questioning of the ability of the Egyptians to build the pyramids, or the Easter Islanders to erect those massive stone heads," the New York Times wrote in 1974.
"His method is to use a negative - ancient peoples couldn't have done or thought all the things they did - to prove a positive - that the ancient people were the beneficiaries of some kind of cosmological Point 4 (development assistance) programme."
Such criticism never knocked von Daeniken off his stride.
"We owe it to our self-respect to be rational and objective," he wrote. "At some time or other every daring theory seemed to be a Utopia. How many Utopias have long since become everyday realities!"
Television specials about his books made him a well-known figure in Europe and the United States. In 2003 he opened a Mysteries of the World theme park in Interlaken - although it went bust after three years.
PREDICTED ALIEN RETURN
In a treatise on his website, von Daeniken said he was not an esoteric, and that his work served to debunk "a world of religious and unfortunately often scientific humbugs".
"From countless old written records I know that these 'gods' promised to return. Then we will experience the god shock, a total catastrophe in religion and science. And everything would have been so easy to understand - without this god shock. The evidence speaks a clear language. That is what drives me."
The release in July 2021 of a watershed U.S. government UFO report that did not rule out extraterrestrial origins gave him hope.
"In future, anyone who talks about UFOs and extraterrestrials can no longer simply be ridiculed. People will slowly realise that many things are possible that they previously considered impossible," he told the Neue Zuercher Zeitung newspaper.
"As soon as we are prepared and get used to the idea that we are not alone in the universe, the extraterrestrials will come to us. I expect that to be the case within the next 10 years."
(Reporting by Michael Shields; additional reporting by Dave Graham; Editing by Kevin Liffey and Louise Heavens)
Ancient astronaut theory posits that extraterrestrial beings visited Earth in ancient times and influenced human civilization, including the construction of monumental structures.
A book's legacy refers to its lasting impact on culture, thought, and society, often influencing future generations and discussions.
A controversial theory is a concept or idea that generates significant debate and disagreement among experts, often challenging established beliefs or norms.
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