The general claim of von Däniken over several published books, starting with Chariots of the Gods? in 1968, is that extraterrestrials or “ancient astronauts” visited Earth and influenced early human culture. Von Däniken writes about his belief that structures such as the Egyptian pyramids, Stonehenge, and the Moai of Easter Island, and certain artifacts from that period, are products of higher technological knowledge than is presumed to have existed at the times they were manufactured. He also describes ancient artwork throughout the world as containing depictions of astronauts, air and space vehicles, extraterrestrials, and complex technology. Von Däniken explains the origins of religions as reactions to contact with an alien race, and offers interpretations of sections of the Old Testament of the Bible.