What historical event do some people believe did not happen?

One historical event that some people believe did not happen is the moon landing in 1969. Conspiracy theorists argue that the Apollo 11 mission was staged by NASA and the U.S. government to assert dominance during the Cold War. They claim that the photographs and videos were fabricated, despite overwhelming evidence from scientific, photographic, and eyewitness sources confirming the event. These beliefs persist despite extensive documentation and the testimonies of astronauts and engineers involved in the mission.