of the Bible in Raëlism, the scholar of religion Eugene V. Gallagher suggested that it was a "thoroughly biblical and thoroughly Christian" philosophy. Similarly, the sociologist of religion Susan J. Palmer characterised Raëlism as both fundamentalist and Abrahamic in its reliance on the Bible. Raël nevertheless criticised Christianity for what he believed was its role in perverting the Bible's message, presenting himself as an opponent of the Roman Catholic Church. Raëlism is not inclusive of other religions, with new members expected to formally renounce any previous religious affiliations. Beliefs During the early 2000s, the scholar of religion George D. Chryssides said that Raëlism exhibits "a coherent worldview", but added that the movement remained in the "very early developmental stage". The religion is based on the teachings of Raël. Raël's claims are taken literally by practitioners of Raëlism, who regard his writings as scripture. From Palmer's extensive study of the philosophy and Raël himself, she thought that he genuinely believed his claims. The sociologist of religion Christopher Partridge noted that Raëlianism exhibits "a strong physicalist belief system". Raëlism presents a form of the ancient astronauts theory which was well known at the time that the religion was formed. Several French authors, such as Jean Sendy, Serge Hutin, and Jacques Bergier, had already published books during the late 1960s and early 1970s stating that Earth was the outpost of an ancient extraterrestrial society. Swiss writer Erich von Däniken presented the same idea in his 1968 book Chariots of the Gods? Similar ideas had also been put forward in science fiction, such as the U.S. television series Star Trek. Raëlians often deny the effect of von Däniken on the philosophy, instead believing that it derives entirely from Raël's revelations. The Elohim Raëlism teaches that there exists an extraterrestrial species known as the Elohim. Raël has said that the word "Elohim", which is used for God in the Old Testament, is actually a plural term which he translates as "those who came from the sky." Raël calls individual members of the Elohim "Eloha". He claims that the Elohim gave him the honorific name "Raël", a term deriving from "Israel", which he translates as "the messenger of those who come from the sky." In his first book, Le Livre Qui Dit La Verité (The Book That Tells the Truth), published in 1974, Raël claimed that he initially encountered these alien beings on 13 December 1973,