There are many conspiracy theories in current or recent history, some much more widespread and important than others. In the following list, the more famous ones or focused ones are listed first.
*Various theories regarding President [[John F. Kennedy]]'s assassination. There are a number of theories proposed here, generally along the lines that the assassination was not conducted by [[Lee Harvey Oswald]] acting alone, but was part of some larger murder conspiracy. This may be the first of the modern conspiracy theories. (Similarly, theories exist that his son, John F. Kennedy Jr., did not die in the plane crash which killed him, his wife, and sister-in-law.)
*Denial of the [[Shroud of Turin]] implicitly requires a farfetched conspiracy theory, that someone severely injured, bloodied and allowed himself to be scourged so that co-conspirators would then promote a fake shroud despite not making any money from it.
*[[Apollo conspiracy theory]]: The theory that the [[Apollo 11]] lunar landing on July 20, 1969, and indeed the entire Apollo program, was fake. Supporters analyze photographs and often claim that satellite photographs of [[Area 51]] resemble a movie studio.