Erich Anton Paul von Däniken (born 14 April 1935) is a Swiss author of several books which make claims about extraterrestrial influences on early human culture, including the best-selling Chariots of the Gods?, published in 1968. Däniken is one of the main figures responsible for popularizing the "paleo-contact" and ancient astronauts hypotheses. The ideas put forth in his books are rejected by a majority of scientists and academics, who categorize his work as pseudohistory, pseudoarchaeology, and pseudoscience.
Däniken later became a co-founder of the Archaeology, Astronautics and SETI Research Association (AAS RA). He designed Mystery Park (now known as Jungfrau Park), a theme park located in Interlaken, Switzerland, that opened in May 2003.