People are universally intrigued by conspiracy theories, and many take pleasure in devising their own. Hours can be spent exploring these theories, pondering their potential validity. This compilation highlights the top 10 conspiracy theories. If your favorite is missing or you have evidence that any of these are more than just theories, feel free to comment—just keep it respectful!
1. 9/11 was Planned by the US Government [Wikpedia]

Numerous conspiracy theories have emerged regarding the September 11, 2001 attacks, with many suggesting that President George W. Bush and/or members of his administration had prior knowledge and deliberately permitted the attacks to proceed. The motive, according to these theories, was to garner public backing for increased militarization, expansion of surveillance, and other policies that would serve their interests.
Advocates often reference the Project for the New American Century, a conservative think tank advocating for stronger U.S. global influence. Notable former members include ex-Secretary of Defense Donald Rumsfeld, Vice President Dick Cheney, and other prominent figures from the Bush administration. A 1990 report from the group suggested that a significant, transformative event—akin to a new Pearl Harbor—would be necessary to shift public opinion in their favor.
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2. UFO Recovered at Roswell [Wikpedia]

The Roswell UFO Incident revolves around materials recovered near Roswell, New Mexico, USA, in July 1947, sparking widespread speculation, rumors, and extensive research. Opinions vary widely on what truly occurred, with heated debates over the credibility of the evidence. The U.S. military asserts that the recovered debris was from a classified research balloon that had crashed.
By the early 1990s, UFO investigators like Friedman, William Moore, Karl Pflock, and the duo Kevin Randle and Don Schmitt had spoken with hundreds of individuals [11] who were allegedly connected to the Roswell events of 1947. Numerous documents were also acquired through Freedom of Information Act requests, alongside some purportedly leaked by insiders, such as the controversial “Majestic 12” files. Their findings suggested that at least one extraterrestrial spacecraft had crashed near Roswell, that alien beings—some possibly still alive—were recovered, and that an extensive cover-up was orchestrated to conceal the incident.
3. John F. Kennedy’s Assassination [Wikpedia]

John F. Kennedy, the 35th President of the United States, was assassinated on Friday, November 22, 1963, in Dallas, Texas, at 12:30 p.m. CST (18:30 UTC). He was fatally shot while traveling with his wife Jacqueline in a presidential motorcade through Dealey Plaza. The Warren Commission, which conducted an official investigation over ten months, released its report in September 1964, concluding that Lee Harvey Oswald, an employee of the Texas School Book Depository, acted alone in the assassination.
Numerous conspiracy theories surround the assassination of President John F. Kennedy, emerging shortly after his death and persisting to this day. Many of these theories suggest a complex conspiracy involving entities such as the Federal Reserve, the CIA, the KGB, the Mafia, FBI Director J. Edgar Hoover, Vice President Lyndon B. Johnson, Richard Nixon, Fidel Castro, George H. W. Bush, anti-Castro Cuban exile groups, and various U.S. military or governmental factions.
4. Global Warming is a Fraud [Wikpedia]

A 1990 documentary titled The Greenhouse Conspiracy, aired on Channel Four in the UK on August 12, 1990, as part of the Equinox series, proposed the idea of a conspiracy to push the narrative of global warming. It claimed that scientists who were skeptical of global warming theory faced difficulties in securing funding.
William Gray, PhD, renowned for his advancements in hurricane forecasting, outlined 15 reasons behind the global warming frenzy. Among these, he highlighted the search for a new adversary post-Cold War and the eagerness of scientists, politicians, and environmentalists to rally around a cause that offers them a platform to influence, organize, and enforce compliance. He suggested that a larger global governance could steer humanity towards a better future. Gray also pointed to Al Gore's rise to the vice presidency as a turning point that led to his challenges in obtaining federal funding, noting that both the National Oceanic and Atmospheric Administration and NASA ceased providing him with research grants.
5. Princess Diana was Murdered by the Royal Family [Wikpedia]

In 1997, Princess Diana, the Princess of Wales, and Dodi Fayed, son of Mohamed Fayed, the owner of the Ritz Hotel and Harrods, tragically died in a car crash in Paris while attempting to evade paparazzi. Their relationship, which stirred controversy due to Dodi's Muslim faith and Diana's role as the mother of the future head of the Church of England, has fueled widespread speculation that their deaths were orchestrated to prevent further embarrassment to the British monarchy.
Surveys indicate that approximately 25% of the UK population, along with a majority in several Arab nations, believe Princess Diana's death was the result of a deliberate plot. Theories suggest various motives, such as her potential marriage to Dodi Fayed, her rumored conversion to Islam, possible pregnancy, and plans to visit sacred sites. Conspiracy theorists have implicated numerous organizations, including French Intelligence, the British Royal Family, the media, British Intelligence agencies MI5 and MI6, the CIA, Mossad, the Freemasons, and the IRA.
6. Jewish World Domination [Wikpedia]

In modern times, this theory largely stems from the publication *The Protocols of the Elders of Zion*, often regarded as the foundation of contemporary conspiracy literature. While many view *The Protocols* as an anti-Semitic fabrication alleging a Jewish scheme for global control, multiple investigations have labeled it as both a plagiarized work and a deliberate fraud. However, some still argue for its authenticity despite widespread debunking.
The document gained traction among opponents of the Russian revolutionary movement and saw increased circulation following the 1905 revolution. It achieved global notoriety after the 1917 October Revolution and became widely distributed in the West by 1920. The Protocols' influence grew during the Great Depression and the emergence of Nazism, marking significant milestones in its controversial history.
7. Apollo Moon Landing Hoax [Wikpedia]

Claims that the Apollo Moon landings were staged by NASA, possibly with the involvement of other organizations, form the basis of the Apollo Moon Landing hoax theory. Various groups and individuals propose alternative narratives, asserting that the Apollo astronauts never actually landed on the moon and that NASA fabricated and continues to uphold this deception.
Supporters of the Moon landing hoax theory focus heavily on analyzing NASA's photographic evidence, highlighting perceived inconsistencies in images and footage claimed to be from the Moon. Photography experts, including those unaffiliated with NASA, argue that these anomalies are consistent with genuine lunar conditions and contradict what would be expected in staged or altered photos. Hoax theorists also suggest that insiders may have intentionally altered NASA images to reveal the alleged deception.
8. Pearl Harbor Was Allowed to Happen [Wikpedia]

This theory posits that President Franklin D. Roosevelt (FDR) deliberately provoked the Pearl Harbor attack, had prior knowledge of it, and concealed his failure to alert Hawaiian commanders. FDR allegedly needed the attack to push Hitler into declaring war, as both the public and Congress were strongly opposed to entering the European conflict. It served as his covert strategy to join the war.
Conspiracy theorists argue that the US received warnings from multiple governments, including Britain, the Netherlands, Australia, Peru, Korea, and the Soviet Union, about an impending surprise attack on Pearl Harbor. With all critical Japanese codes decrypted, they claim FDR, General Marshall, and others were aware of the attack, permitted it to occur, and later concealed their foreknowledge.
9. The Third Secret of Fatima [Wikpedia]

The Three Secrets of Fatima are believed to be three prophetic messages delivered by an apparition of the Virgin Mary to three young Portuguese shepherds: Lucia Santos and her cousins Jacinta and Francisco Marto. Between May and October 1917, the children reported multiple visions of the apparition, now widely known as Our Lady of Fatima. On July 13, the Virgin Mary reportedly shared three prophetic secrets with the children. Two of these secrets were disclosed in 1941 through a document written by Lucia to aid in her cousins' canonization. The third secret, however, was kept confidential, though Lucia was instructed by the bishop of Leiria to write it down and deliver it to the Pope.
A Catholic priest, who claims to have read the original text of the 'third secret' of Fatima, challenges the Vatican's official interpretation. He has reportedly questioned key Vatican officials about the text but received no answers. While his statements may seem controversial, they carry weight as he asserts firsthand knowledge of the secret. Additionally, while the first two secrets are straightforward, the third has been deemed so complex that it required analysis by a team of experts.
10. The Philadelphia Experiment [Wikpedia]

The Philadelphia Experiment is a legendary tale about a supposed naval test conducted at the Philadelphia Naval Shipyard in Pennsylvania around October 28, 1943. The experiment, also known as Project Rainbow, allegedly aimed to make the USS Eldridge, a U.S. destroyer escort, invisible to the naked eye for a short duration. While the U.S. Navy denies the event ever took place and points out inconsistencies in the story, it has become a cornerstone of conspiracy theories, inspiring numerous other government-related conspiracy narratives.
Some versions of the story claim that the experiment was led by a scientist named Dr. Franklin Reno (or Rinehart), who sought to apply Einstein's Unified Field Theory for military purposes. This theory suggests a connection between electromagnetic forces and gravity. By leveraging specialized equipment and immense energy, it was theorized that light could be bent around an object, making it invisible. The Navy, recognizing its potential military advantages during World War II, reportedly authorized and funded the experiment. The USS Eldridge was allegedly outfitted with the necessary technology at the Philadelphia shipyard.
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Note: With countless conspiracy theories out there, compiling them all would make this list excessively long. Keep an eye out for a follow-up Conspiracy Theories list in the future.
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