LaVeyan Satanism

LaVeyan Satanism is a religion founded in 1966 by Anton LaVey. Its teachings are based on individualism, social Darwinism, self-indulgence, and "eye for an eye" morality, with influence from Friedrich Nietzsche and Ayn Rand, while its rituals and magic draw heavily from occultists such as Aleister Crowley. Borrowing Crowley's terminology, its adherents define Satanism as a "Left-Hand Path" religion, rejecting traditional "Right-Hand Path" religions such as Christianity for their perceived denial of life and emphasis on guilt and abstinence. Unlike Theistic Satanism, which is rejected by the Church of Satan as Christian heresy rather than Satanism, it does not literally worship Satan, but rather uses "Satan" as a symbol for people's natural inner desires.
Anton LaVey established Satanism's first and largest religious organization, the Church of Satan, in 1966, and codified Satanic beliefs and practices in the Satanic Bible in 1969. According to the Church of Satan, there are many Satanists around the world, including both members and non-members. It rejects the legitimacy of any other organizations of Satanists, dubbing them reverse-Christians and pseudo-Satanists. Although exact numbers have never been released, it has been estimated that the number of adherents is in the tens of thousands