synthesis overcame the eclipse of Darwinism in the first half of the 20th century, American fundamentalist Christians began opposing the teaching of the theory of evolution in public schools. They introduced numerous laws to this effect, one of which was notoriously upheld by the Scopes Trial. In the second half of the century the Space Race caused a renewed interest in science and worry that the USA was falling behind on the Soviet Union. Stricter science standards were adopted and led to the re-introduction of the theory of evolution in the curriculum. The laws against teaching evolution were now ruled unconstitutional, because they violated the separation of church and state. Attempting to evade this ruling, the Christian fundamentalists produced a supposedly secular alternative to evolution, Creationism. Perhaps the most influential publication of this new pseudoscience was The Genesis Flood by young earth creationists John C. Whitcomb and Henry M. Morris. The dawn of the space age also inspired various versions of ancient astronaut theories. While differences between the specific theories exists, they share the idea that intelligent extraterrestrials visited Earth in the distant past and made contact with then living humans. Popular authors, such as Erich von Däniken and Zecharia Sitchin, began publishing in the 1960s. Among the most notable publications in the genre is Chariots of the Gods?, which appeared in 1968. The Apollo Moon landings from the 1960s through the 70's gave rise to a number of Apollo Moon Landing hoax conspiracy theories. These conspiracy theories are universally ignored by the scientific community, but at the end of the century a Gallup poll showed 6 percent of the American population did not believe the landings were genuine. Late in the 20th century several prominent skeptical foundations were formed to counter the growth of pseudosciences. In the US, the most notable of these are, in chronological order, the Center for Inquiry (1991), The Skeptics Society (1992), the James Randi Educational Foundation (1996), and the New England Skeptical Society (1996). The Committee for Skeptical Inquiry, which has similar goals, had already been founded in 1976. It became part of the Center for Inquiry as part of the foundation of the latter in 1991. In the Netherlands Stichting Skepsis was founded in 1987. 21st century At the beginning of the 21st century, a variety of pseudo scientific theories remain popular and new ones continue to crop up. The Flat Earth is