The general claim of 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. Däniken writes about his belief that structures such as the Egyptian pyramids, Stonehenge, and the Moai of Easter Island and artifacts from that period represent 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. 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.