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  1. List of conspiracy theories - Wikipedia

    They usually deny consensus opinion and cannot be proven using historical or scientific methods, and are not to be confused with research concerning verified conspiracies, such as Germany's …

  2. 21 of the best conspiracy theories - Live Science

    Sep 12, 2024 · All conspiracy theories must have certain necessary elements: a conspiracy between two or more people, a secret action, and a motive, said Karen Douglas, a professor …

  3. 12 Of The Most Popular Conspiracy Theories In American History

    Jun 2, 2020 · These are but a sample of the strange and fascinating conspiracy theories that have captured the attention of the American people over the years. Ever the point of contention, …

  4. Top 20 Popular Conspiracy Theories Explained – CONTEXT …

    Nov 21, 2024 · Conspiracies surround John F. Kennedy’s assassination in 1963, with theories about a second shooter or involvement of the CIA, Mafia, or other political adversaries.

  5. Biggest Conspiracy Theories of 2025: What People Are Talking ...

    Jun 24, 2025 · As global tensions rise, political power shifts, and technology evolves rapidly, 2025 has become a hotbed for new — and revived — conspiracy theories. Whether sparked by …

  6. Conspiracy theory | Definition, Examples, & Facts | Britannica

    Dec 10, 2025 · conspiracy theory, an attempt to explain harmful or tragic events as the result of the actions of a small powerful group. Such explanations reject the accepted narrative …

  7. Conspiracy Theories - The Decision Lab

    Conspiracy theories are beliefs that certain events or situations result from hidden, often malicious plots by powerful people or groups. These theories usually lack credible evidence, reject …