List of conspiracy theories

This conspiracy theory emerged in the U.S. in the 1960s. The John Birch Society originally promoted[6] it, asserting that a United Nations force would soon arrive in black helicopters to bring the U.S. under UN control. The theory re-emerged in the 1990s during the presidency of Bill Clinton, and has been promoted by talk show host Glenn Beck.[7][8] A similar theory concerning so-called "phantom helicopters" appeared in the UK in the 1970s.[9]

A high-flying jet's engines leaving a condensation trail (contrail)

Also known as SLAP (Secret Large-scale Atmospheric Program), this theory alleges that water condensation trails ("contrails") from aircraft consist of chemical or biological agents, or contain a supposedly toxic mix of aluminum, strontium and barium,[10] under secret government policies. An estimated 17% of people globally believe the theory to be true or partly true. In 2016, the Carnegie Institution for Science published the first-ever peer-reviewed study of the chemtrail theory; 76 out of 77 participating atmospheric chemists and geochemists stated that they had seen no evidence to support the chemtrail theory, or stated that chemtrail theorists rely on poor sampling.[11][12]

The destruction of Korean Air Lines Flight 007 by Soviet jets in 1983 has long drawn the interest of conspiracy theorists. The theories range from allegations of a planned espionage mission, to a US government cover-up, to the consumption of the passengers' remains by giant crabs.[13]

The disappearance of Malaysia Airlines Flight 370 in southeast Asia in March 2014 has prompted many theories. One theory suggests that this plane was hidden away and reintroduced as Flight MH17 later the same year in order to be shot down over Ukraine for political purposes. Prolific American conspiracy theorist James H. Fetzer has placed responsibility for the disappearance with Israeli Prime Minister Benjamin Netanyahu.[14] Historian Norman Davies has promoted the conspiracy theory that hackers remotely took over a Boeing Honeywell Uninterruptible Autopilot, supposedly installed on board, remotely piloting the aircraft to Antarctica.[15][16]

Malaysia Airlines Flight 17 was shot down over Ukraine in July 2014. This event has spawned numerous alternative theories. These variously include allegations that it was secretly Flight MH370, that the plane was actually shot down by the Ukrainian Air Force to frame Russia, that it was part of a conspiracy to conceal the "truth" about HIV (seven disease specialists were on board), or that the Illuminati or Israel was responsible.[14][17]

Multiple conspiracy theories pertain to a fatal oil-rig industrial accident in 2010 in the Gulf of Mexico, alleging sabotage by those seeking to promote environmentalism, or a strike by North Korean or Russian submarines. Elements of such theories have been suggested or promoted by US radio host Rush Limbaugh.[18][19]

A theory claims that The Coca-Cola Company intentionally changed to an inferior formula with New Coke, with the intent either of driving up demand for the original product or permitting the reintroduction of the original with a new formula using cheaper ingredients.[20] Coca-Cola president Donald Keough rebutted this charge: "The truth is, we're not that dumb, and we're not that smart."[21]

Adam Weishaupt, founder of the Bavarian Illuminati

The New World Order theory states that a group of international elites controls governments, industry, and media organizations, with the goal of establishing global hegemony. They are alleged to be implicated in most of the major wars of the last two centuries, to carry out secretly staged events, and to deliberately manipulate economies. Organizations alleged to be part of the plot include the Federal Reserve System, the Council on Foreign Relations, Trilateral Commission, the Bilderberg Group, the European Union, the United Nations, the World Bank, the International Monetary Fund, Bohemian Grove,[61] Le Cercle[62] and Yale University society Skull and Bones.

The Discordian hoax has resulted in one of the world's foremost conspiracy theories, which claims that the "Illuminati" are secretly promoting the posited New World Order. Theorists believe that a wide range of musicians, including Beyoncé and Whitney Houston, have been associated with the "group".[63] Prominent theorists include Mark Dice and David Icke.[64]

Some theorists believe that Denver International Airport stands above an underground city which serves as a headquarters of the New World Order. Theorists cite the airport's unusually large size, its distance from Denver city center, Masonic and alleged Satanic symbols, as well as a set of murals which include depictions of war and death.[65]

Hungarian-American investor George Soros has been the subject of conspiracy theories since the 1990s. Soros has used his wealth to promote many political, social, educational and scientific causes, disbursing grants totaling an estimated $11 billion up to 2016. However, theories tend to assert that Soros is in control of a large portion of the world's wealth and governments, and that he secretly funds a large range of persons and organizations for nefarious purposes, such as Antifa, which the conspiracy theorists claim is a single far-left militant group. Such ideas have been promoted by Viktor Orban, Donald Trump,[66] Rudy Giuliani,[67] Joseph diGenova,[68] Bill O'Reilly, Roy Moore, Alex Jones, Paul Gosar, and Ben Garrison. Soros conspiracy theories are sometimes linked to antisemitic conspiracy theories.[69]

Conspiracy theories concerning the Freemasons have proliferated since the 18th century. Theorists have alleged that Freemasons control large parts of the economies or judiciaries of a number of countries, and have alleged Masonic involvement in events surrounding the sinking of the Titanic and the crimes of Jack the Ripper.[70][71] Notable among theorists has been American inventor Samuel Morse, who in 1835 published a book of his own conspiracy theories.[72] Freemason conspiracy theories have also been linked to certain antisemitic conspiracy theories.

Conspiracy theories in Turkey started to dominate public discourse during the late reign of the Justice and Development Party and Recep Tayyip Erdoğan.[73] In 2014, Erdoğan coined the term üst akıl ("mastermind") to denote the alleged command and control institution, somewhat ambiguously placed with the government of the United States, in a comprehensive conspiracy to weaken or even dismember Turkey, by orchestrating every political actor and action perceived hostile by Turkey.[74][75][73] Erdoğan as well as the Daily Sabah newspaper have on multiple occasions alleged that very different non-state actors—like the Salafi jihadist Islamic State of Iraq and the Levant (ISIL), the libertarian socialist Kurdistan Workers' Party (PKK) and supporters of Fethullah Gülen—were attacking Turkey at the same time in a well-coordinated campaign.[76]

One instance of promoting the "mastermind" conspiracy theory occurred in February 2017, when then-Ankara Mayor Melih Gökçek claimed that earthquakes in the western province of Çanakkale could have been organized by dark external powers aiming to destroy Turkey's economy with an "artificial earthquake" near Istanbul.[77] In another example, in November 2017, the Islamist newspaper Yeni Akit claimed that the fashion trend of "ripped denim" jeans was in fact a means of communication, via specific forms of rips and holes, between agents of foreign states and their collaborators in Turkey.[78]

Conspiracy theories exist alleging that Israel uses animals to conduct espionage or to attack people. These are often associated with conspiracy theories about Zionism. Matters of interest to theorists include a series of shark attacks in Egypt in 2010, Hezbollah's accusations of the use of "spying" eagles,[79] and the 2011 capture of a griffon vulture carrying an Israeli-labeled satellite tracking device.[80]

Numerous persons, including former MI5 officer Peter Wright and Soviet defector Anatoliy Golitsyn, have alleged that former British Prime Minister Harold Wilson was secretly a KGB spy. Historian Christopher Andrew has lamented that a number of people have been "seduced by Golitsyn's fantasies".[81][82][83]

Conspiracy theories concerning Malala Yousafzai are widespread in Pakistan, elements of which originate from a 2013 satirical piece in Dawn. These theories variously allege that she is a Western spy, or that her attempted murder by the Taliban in 2012 was a secret operation to further discredit the Taliban, and was organized by her father and the CIA and carried out by actor Robert de Niro disguised as an Uzbek homeopath.[84][85][86][87]

First edition of The Protocols of the Elders of Zion

Since at least the Middle Ages, antisemitism has featured elements of conspiracy theory. In medieval Europe it was widely believed that Jews poisoned wells, had been responsible for the death of Jesus, and ritually consumed the blood of Christians. The second half of the 19th century saw the emergence of notions that Jews and/or Freemasons were plotting to establish control over the world, a similar conspiracy theory relates to cultural Marxism. Forged evidence has been presented to spread the notion that Jews were responsible for the propagation of Communism, or the hoax The Protocols of the Elders of Zion (1903) which outlines a supposed plot by Jews to control the world.[88] Such antisemitic conspiracy theories became central to the worldview of Adolf Hitler. Antisemitic theories persist today in notions concerning banking,[89] Hollywood, the news media and a purported Zionist Occupation Government.[90][91][92] These theories have a tyrannical worldview in common.[93]

Holocaust denial is also considered an antisemitic conspiracy theory because of its position that the Holocaust is a hoax designed to advance the interests of Jews and justify the creation of the State of Israel.[94][95] Holocaust deniers include former Iranian President Mahmoud Ahmedinejad,[96] the convicted chemist Germar Rudolf[97] and the discredited author David Irving.[98]

Conspiracy theories that allege that the Armenians wield secret political power are prevalent in Azerbaijan[99] and have been promoted by the government,[100] including President Ilham Aliyev.[101][102][103]

Turkish Foreign Minister Mevlüt Çavuşoğlu has claimed that the Russian media is run by Armenians.[104] American writer and disbarred lawyer Samuel Weems[105] has claimed that the Armenian Genocide was a hoax designed to defraud Christian nations of billions of dollars, and that the Armenian Church instigates terrorist attacks.[106] Filmmaker Davud Imanov has accused the Armenians of plotting against Azerbaijan and has claimed that the Karabakh movement was a plot by the CIA to destroy the Soviet Union.[107]

Iran's Baháʼí Faith minority has been the target of conspiracy theories alleging involvement with hostile powers. Iranian government officials and others have claimed that Baháʼís have been agents variously of Russian imperialism, British colonialism, American expansionism and Zionism.[108] An apocryphal and historically-inaccurate book published in Iran, entitled The Memoirs of Count Dolgoruki, details a theory that the Bahá'ís intend to destroy Islam. Such anti-Baháʼí accusations have been dismissed as having no factual foundation.[109][110][111]

Anti-Catholic cartoon depicting Catholicism as an octopus, from H. E. Fowler and Jeremiah J. Crowley's The Pope (1913)

Since the Protestant Reformation of the 16th century, anti-Catholic conspiracy theories have taken many forms, including the 17th-century Popish Plot allegations,[112] claims by persons such as William Blackstone that Catholics posed a secret threat to Britain, and numerous writings by authors such as Samuel Morse, Rebecca Reed, Avro Manhattan, Jack Chick and Alberto Rivera. Theorists often claim that the Pope is the Antichrist, accuse Catholics of suppressing evidence incompatible with Church teachings, and describe Catholics as being involved with secret evil rituals, crimes, and other plots.

In 1853, the Scottish minister Alexander Hislop published his anti-Catholic pamphlet The Two Babylons,[113] in which he claims that the Catholic Church is secretly a continuation of the pagan religion of ancient Babylon, the product of a millennia-old conspiracy founded by the Biblical king Nimrod and the Assyrian queen Semiramis.[113] It also claims that modern Catholic holidays, including Christmas and Easter, are actually pagan festivals established by Semiramis and that the customs associated with them are pagan rituals. Modern scholars have unanimously rejected the book's arguments as erroneous and based on a flawed understanding of Babylonian religion,[113] but variations of them are still accepted among some groups of evangelical Protestants.[113] Jehovah's Witnesses periodical The Watchtower frequently published excerpts from it until the 1980s.[114] The book's thesis has also featured prominently in the conspiracy theories of racist groups, such as The Covenant, The Sword, and the Arm of the Lord.[115]

Fears of a Catholic takeover of the US have been especially persistent,[116][117] prompted by phenomena such as Catholic immigration in the 19th century[118] and Ku Klux Klan propaganda.[119][120] Such fears have attached to Catholic political candidates such as Al Smith[121] and John F. Kennedy.[122][123][124]

Pope John Paul I died in September 1978, only a month after his election to the papacy. The timing of his death and the Vatican's alleged difficulties with ceremonial and legal death procedures has fostered several conspiracy theories.

The elderly Pope Benedict XVI's resignation in February 2013, for given reasons of a "lack of strength of mind and body",[125] prompted theories in Italian publications such as La Repubblica and Panorama that he resigned in order to avoid an alleged scandal involving an underground gay Catholic network.[126][127]

Apocalyptic prophecies, particularly Christian claims about the End Times, have inspired a range of conspiracy theories. Many of these cite the Antichrist, a leader who will supposedly create an oppressive world empire. Countless figures have been called Antichrist, including Holy Roman Emperor Frederick II, Russian emperor Peter the Great, Saladin, Pope John XXII, Benito Mussolini, Barack Obama, French Emperor Napoleon Bonaparte, and German Führer Adolf Hitler.[128][129][130][131]

Bible conspiracy theories posit that significant parts of the New Testament are false, or have been omitted. Various groups both real (such as the Vatican) and fake (such as the Priory of Sion) are said to suppress relevant information concerning, for example, the dating of the Shroud of Turin.[132]

Much of this line of conspiracy theory has been stimulated by a debunked book titled The Holy Blood and the Holy Grail (1982), which claimed that Jesus and Mary Magdalene were lovers and that their offspring and descendants were secretly hidden in Europe following the death of Jesus, from whom the then-living French draughtsman Pierre Plantard claimed descent. Interest in this hoax saw a resurgence following the publication of Dan Brown's 2003 novel The Da Vinci Code.[133]

"War against Islam" is a conspiracy theory in Islamist discourse which describes an alleged plot to either harm or annihilate the social system within Islam. The perpetrators of this conspiracy are alleged to be non-Muslims and "false Muslims", allegedly in collusion with political actors in the Western world. While this theory is often referred to in relation to modern social problems and changes, the Crusades are often presented as its starting point.[134]

Since the September 11 Attacks, many anti-Islamic conspiracy theories have emerged, concerning a variety of topics. Love Jihad, also called Romeo Jihad, refers to a conspiracy theory concerning Muslim males who are said to target non-Muslim girls for conversion to Islam by feigning love.[135][136][137][138] The "Eurabia" theory alleges a massive Muslim plot to islamize Europe (and often the rest of the western world) through mass immigration and high birth rates.[139] In addition, before and during his presidency, Barack Obama was accused by opponents of secretly being a Muslim.

White genocide conspiracy theory is a white nationalist notion that immigration, integration, low fertility rates and abortion are being promoted in predominantly white countries in order to turn white people into a minority or cause their extinction.[140][141][142][143][144][145] A 2017 study in France by IFOP, for example, found that 48% of participants believed without evidence that political and media elites are conspiring to replace white people with immigrants.[146]

Emperor Haile Selassie of Ethiopia

In the United States, black genocide conspiracy theory[147][148] holds the view that African Americans are the victims of genocide instituted by white Americans. Lynchings and racial discrimination were formally described as genocide by the Civil Rights Congress in 1951. Malcolm X also talked about "black genocide" in the early 1960s.[149] Public funding of the Pill was also described as "black genocide" at the first Black Power Conference, in 1967.[150][151] In 1970, after abortion was more widely legalized, some black militants depicted abortion as being part of the conspiracy.[152]

Some Rastafari maintain the view that a white racist patriarchy ("Babylon") controls the world in order to oppress black people.[153] They believe that Emperor Haile Selassie of Ethiopia did not die in 1975, instead believing that the allegedly racist media propagated false reports of his death in order to quash the Rastafari movement.[154]

"The Plan" is an alleged plot by white power brokers in Washington, D.C. to "take back" the city's local government from African Americans, who were a majority of the city's population from the late 1950s to the early 2010s and remain its largest ethnic group.[155][156] The theory asserts that the decline of low-income black residents and their replacement by wealthier whites from outside of the city is intentional through the calculated use of gentrification and urban renewal.[157] Most city residents, regardless of race, consider The Plan to be false, but some believe it has quiet but considerable support among black residents and influences local elections.[158]

Conspiracy theories concerning the Illuminati, a short-lived 18th-century Enlightenment-era secret society, appear to have originated in the late 19th century, when some conservatives in Europe came to believe that the group had been responsible for the French Revolution of 1789–1799.[169] Hoaxes about the Illuminati were later spread in the 1960s by a group of American practical jokers known as the Discordians, who, for example, wrote a series of fake letters about the Illuminati to Playboy.[170]

The World Trade Center towers prior to 9/11

False flag operations are covert operations designed to appear as if they are being carried out by other entities. Some allegations of false flag operations have been verified or have been subjects of legitimate historical dispute (such as the 1933 Reichstag arson attack).[171] Discussions of unsubstantiated allegations of such operations feature strongly in conspiracy theory discourse.

Other allegations of similar operations have attached to the bombing of Pearl Harbor, the Oklahoma City bombing, the 2004 Madrid train bombings,[172] and the 1964 Gulf of Tonkin incident.[173]

The rise of ISIS gave rise to conspiracy theories that it had been created by the US, CIA, Mossad, or Hillary Clinton.[174][175] The same happened after the rise of Boko Haram.[176][177]

The multiple attacks made on the US by terrorists using hijacked aircraft on 11 September 2001 have proved attractive to conspiracy theorists. Theories may include reference to missile or hologram technology. By far, the most common theory is that the attacks were in fact controlled demolitions,[178][179] a theory which has been rejected by the engineering profession[180] and the 9/11 Commission.

A 2012 fatal mass shooting at Sandy Hook Elementary School in Newtown, Connecticut, prompted numerous conspiracy theories, among which is the claim that it was a manufactured event with the aim of promoting gun control. Former Ku Klux Klan leader David Duke has theorized that Zionists were responsible.[181] Theorists such as Alex Jones have suggested that the event was staged with actors.[182][183] Harassment of the bereaved families by conspiracy theorists has resulted in actions for defamation. Rush Limbaugh also stated that the event happened because the Mayan Calendar phenomenon made shooter Adam Lanza do it.[184]

Bill and Hillary Clinton, main people involved in this conspiracy

The Clinton Body Count refers to a conspiracy theory, parts of which have been advanced by Newsmax publisher Christopher Ruddy among others, that asserts that former U.S. President Bill Clinton and his wife Hillary Clinton have assassinated fifty or more of their associates.[185][186][187] Such accusations have been around at least since the 1990s, when a pseudo-documentary film called The Clinton Chronicles, produced by Larry Nichols and promoted by Rev. Jerry Falwell, accused Bill Clinton of multiple crimes including murder.[188][189]

The death of Jeffrey Epstein, an American financier billionaire and convicted sex offender with ties to Donald Trump, Bill Clinton and other members of the elite, has become the subject of conspiracy theories.[190][191]

The United States' Federal Emergency Management Agency is the subject of many theories, including the allegation that the organization has been engaged in the building of concentration camps on US soil, in advance of the imposition of martial law and genocide.[192]

Members of South Africa's African National Congress party have long propagated conspiracy theories, frequently concerning the CIA and alleged white supremacists. In 2014, Deputy Minister of Defence Kebby Maphatsoe joined others in accusing without evidence Public Protector Thuli Madonsela of being a U.S. agent working to create a puppet government in South Africa.[193][194][195]

Donald Trump has been a proponent of the conspiracy theory that Barack Obama was not born in the United States

Former U.S. President Barack Obama has been the subject of numerous conspiracy theories. His presidency was the subject of a 2009 film, The Obama Deception, by Alex Jones, which alleged that Obama's administration was a puppet government for a wealthy elite. Another theory which came to prominence in 2009 (known as "birtherism") denies the legitimacy of Obama's presidency by claiming that he was not born in the US.[196] This theory has persisted despite the evidence of his Hawaiian birth certificate and of contemporaneous birth announcements in two Hawaiian newspapers in 1961.[197] Notable promoters of the theory are dentist-lawyer Orly Taitz[6] and President Donald Trump, who has since publicly acknowledged its falsity but is said to continue to advocate for it privately.[198][199][200] Other theories claim that Obama, a Protestant Christian, is secretly a Muslim.

A pair of fatal attacks on US government facilities in Benghazi, Libya, by Islamist terrorists in 2012 has spawned numerous conspiracy theories, including allegations that Obama's administration arranged the attack for political reasons, and Senator Rand Paul's repeated assertion that the government's response to the incident was designed to distract from a secret CIA operation.[201][202][203]

The intellectual group known as the Frankfurt School which emerged in the 1930s has increasingly been the subject of conspiracy theories which have alleged the promotion of communism in capitalist societies. The term "Cultural Marxism" has been notably employed by conservative American movements such as the Tea Party,[204][205] and by Norwegian mass murderer Anders Behring Breivik.[206]

While the term is occasionally used as a neutral term to denote a nation's bureaucracy,[207] the conspiratorial notion of a "deep state" is a concept originating principally in Middle Eastern and North African politics with some basis in truth, and has been known in the US since the 1960s. It has been revived under the Trump presidency.[208][209] "Deep state" in the latter sense refers to an unidentified "powerful elite" who act in co-ordinated manipulation of a nation's politics and government. Proponents of such theories have included Canadian author Peter Dale Scott, who has promoted the idea in the US since at least the 1990s, as well as Breitbart News, Infowars and US President Donald Trump.[210] A 2017 poll by ABC News and The Washington Post indicated that 48% of Americans believe in the existence of a conspiratorial "deep state" in the US.[211][212]

The 2017 Sutherland Springs church shooting has also been the subject of multiple conspiracy theories. The shooter has been linked to multiple conspiracies, such as identifying him as a Democrat, Hillary Clinton supporter, Bernie Sanders supporter, "alt-left" supporter, Antifa member, or radical Muslim;[213][214] or claiming that he carried an Antifa flag and told churchgoers: "This is a communist revolution".[215] Some reports also falsely claimed that he targeted the church because they were white conservatives.[216]

Beginning in 2017, a sprawling conspiracy theory emerged from 4chan and was spread via right-wing message boards and websites, then via Breitbart and Fox News to President Donald Trump and his allies. The conspiracy theory holds both that Ukraine (rather than Russia) had interfered in the 2016 United States elections, and that then-Vice President Joe Biden had intervened to protect a company in which his son Hunter was involved. The New Yorker found that reporting of the conspiracy in the right wing media was initiated by Peter Schweizer, a former Breitbart News contributor and president of The Government Accountability Institute, "a self-styled corruption watchdog group chaired and funded by conservative mega-donor Rebekah Mercer"[217] and founded by Steve Bannon.[218]

The scandal surrounding Trump's phone call to Ukrainian President Volodymyr Zelensky, in which he appeared to withhold United States military assistance for defense against the Russian invasion of Ukraine unless Zelensky produced evidence of corruption by Biden, by then one of the leading Democratic candidates to challenge Trump in 2020, is credited with precipitating the impeachment of Donald Trump.

The October Surprise Conspiracy Theory refers to an alleged plot to influence the outcome of the 1980 United States presidential election, contested between Democratic incumbent president Jimmy Carter and his Republican opponent, former California governor Ronald Reagan. A huge central point of the elections debate related to the ongoing hostage situation where 52 Americans were being held captive by the Iranian Government after the United States Embassy was stormed by Iranian protestors on 4 November 1979. The plot describes a clandestine negotiation to delay the release of hostages until after the election. Reagan won the election, 20 minutes after he concluded his inaugural address the Islamic Republic of Iran announced the release of the hostages after 444 consecutive days in captivity.[219] It was later revealed that while no direct negotiations occurred, the Reagan campaign did collaborate to disseminate rumors of a payoff for the Iranian government in the case of a post election captive release which stifled any pre-election release negotiations for the Carter Administration.[220]

Refers to a series of allegations alleging that former vice president Joe Biden and his son Hunter Biden coordinated efforts against anti-corruption investigations in Ukraine into the Ukrainian gas company Burisma.[221]

The stolen election conspiracy theory falsely claims that the 2020 United States presidential election was "stolen" from Donald Trump, who lost that election to Joe Biden. It serves to justify attempts to overturn the 2020 United States presidential election, including the 2021 storming of the United States Capitol. A particular variant of it is the "Soros stole the election" conspiracy theory that claims that George Soros stole the election from Trump.[222]

A 2013 study approved by the University of Chicago suggested that almost half of Americans believe at least one medical conspiracy theory, with 37% believing that the Food and Drug Administration deliberately suppresses 'natural' cures due to influence from the pharmaceutical industry.[223] A prominent proponent of comparable conspiracy theories has been convicted fraudster Kevin Trudeau.[224]

Scientists have found evidence that HIV was transferred from monkeys to humans in the 1930s. Evidence exists, however, that the KGB deliberately disseminated a notion in the 1980s that it was invented by the CIA.[225] This idea, and similar ideas concerning Ebola, have since been promoted by persons such as actor Steven Seagal,[226][227][228] Nation of Islam leader Louis Farrakhan and former South Africa President Thabo Mbeki.[225][229][230]

In January 2020, BBC News published an article about SARS-CoV-2 misinformation, citing two 24 January articles in The Washington Times that said the virus was part of a Chinese biological weapons program, based at the Wuhan Institute of Virology (WIV).[231]

Similar conspiracy theories allege that pharmaceutical companies assist in the creation of conditions and diseases including ADHD, HSV and HPV.

A number of conspiracy theories have been promoted about the origin and purported motive behind the SARS-CoV-2 virus and its spread. Some claimed that the virus was engineered,[232][233][234] that it escaped or was stolen from a research laboratory,[235][236][237][238] that it may have been a Chinese or United States bioweapon,[239][240][241] a Jewish plot including to force mass vaccinations or sterilizations,[242][243][244] spread as part of a Muslim conspiracy,[245][246] a population control scheme,[231][247] or related to 5G mobile phone networks.[248][249]

Ripper explains to Mandrake that he discovered the Communist plot to pollute Americans' "precious bodily fluids", a reference to the John Birch Society's anti-fluoridation conspiracy theories (Dr. Strangelove, 1964).

Water fluoridation is the controlled addition of fluoride to a public water supply to reduce tooth decay.[250] Although many dental-health organizations support such fluoridation, the practice is opposed by conspiracy theorists.[251] Allegations may include claims that it has been a way to dispose of industrial waste,[252][253] or that it exists to obscure a failure to provide dental care to the poor.[251] A further theory promoted by the John Birch Society in the 1960s described fluoridation as a communist plot to weaken the American population.[254]

It is claimed that the pharmaceutical industry has mounted a cover-up of a causal link between vaccines and autism. The conspiracy theory developed after the publication in Britain in 1998 of a fraudulent paper by discredited former doctor Andrew Wakefield.[255] The resulting anti-vaccine movement has been promoted by a number of prominent persons including Rob Schneider,[256] Jim Carrey[257] and U.S. President Donald Trump,[258][259] and has led to increased rates of infection and death from diseases such as measles in many countries, including the US, Italy, Germany, Romania and the UK.[260][261][262][263]

Vaccine conspiracy theories have been widespread in Nigeria since at least 2003, as well as in Pakistan. Such theories may feature claims that vaccines are part of a secret anti-Islam plot, and have been linked to fatal mass shootings and bombings at vaccine clinics in both countries.[264][265][266]

Aerial view of the HAARP site, Alaska

A global warming conspiracy theory typically alleges that the science behind global warming has been invented or distorted for ideological or financial reasons.[12] Many have promoted such theories, including U.S. President Donald Trump,[267][268] US Senator James Inhofe,[269] British journalist Christopher Booker,[269] and Viscount Christopher Monckton.[270]

Numerous theories pertain to real or alleged weather-controlling projects. Theories include the debunked assertion that HAARP, a radio-technology research program funded by the US government, is a secret weather-controlling system. Some theorists have blamed 2005's Hurricane Katrina on HAARP.[271] HAARP has also been suggested to have somehow caused earthquakes, such as the 2010 Haiti earthquake, the 2011 Tōhoku earthquake and tsunami or the 2013 Saravan earthquake.[272] Some HAARP-related claims refer to mind-control technology.[273]

Also of interest to conspiracy theorists are cloud-seeding technologies. These include a debunked allegation[274] that the British military's Project Cumulus caused the fatal 1952 Lynmouth Flood in Devon, England,[275] and claims concerning a secret project said to have caused the 2010 Pakistan floods.[276]

Genuine American research in the 1950s and 1960s into chemical interrogation and mind-control techniques were followed by many conspiracy theories (like Project Monarch), especially following CIA Director Richard Helm's 1973 order to destroy all files related to the project. These theories include the allegation that the mass fatality at Jonestown in 1978 was connected to an MKUltra experiment.[277]

Logo of the Flat Earth Society, 2013

Flat Earth theory first emerged in 19th-century England, despite the Earth's spherical nature having been known since at least the time of Pythagoras. It has in recent years been promoted by American software consultant Mark Sargent through the use of YouTube videos.[278] Flat-earther conspiracy theorists hold that planet Earth is not a sphere, and that evidence has been faked or suppressed to hide the fact that is instead a disc, or a single infinite plane. The conspiracy often implicates NASA. Other claims include that GPS devices are rigged to make aircraft pilots wrongly believe they are flying around a globe.[279][280]

Numerous theories pertain to the alleged suppression of certain technologies and energies. Such theories may focus on the Vril Society Conspiracy, allegations of the suppression of the electric car by fossil-fuel companies (as detailed in the 2006 documentary Who Killed the Electric Car?), and the Phoebus cartel, set up in 1924, which has been accused of suppressing longer-lasting light bulbs.[281] Other long-standing allegations include the suppression of perpetual motion and cold fusion technology by government agencies, special interest groups, or fraudulent inventors.[282]

Promoters of alternative energy theories have included Thomas Henry Moray,[283] Eugene Mallove, and convicted American fraudster Stanley Meyer.[284]

Conspiracy theorists often attend to new military technologies, both real and imagined. Subjects of theories include: the alleged Philadelphia Experiment, a supposed attempt to turn a U.S. Navy warship invisible;[285] the alleged Montauk Project, a supposed government program to learn about mind control and time travel; and the so-called "tsunami bomb", which is alleged to have caused the 2004 Indian Ocean tsunami.[286]

Other theories include Peter Vogel's debunked claim that an accidental explosion of conventional munitions at Port Chicago was in fact a nuclear detonation,[287] and a theory promoted by the Venezuelan state-run TV station ViVe that the 2010 Haiti earthquake was caused by a secret US "earthquake weapon".[288]

Conspiracy theorists claim that government agents are utilizing directed energy weapons and electronic surveillance to harass members of the population. Theorists often cite research into psychotronic weapons, the Cuban Health Attacks, and the Microwave Auditory Effect as proof of their theory. There are over 10,000 people who identify as Targeted Individuals.[289]

The "Targeted Individual" phenomenon has been featured on episodes of Conspiracy Theory with Jesse Ventura[290] and History Channel's In Search Of....[291]

Pope Sylvester II (from 999 to 1003)

Some theories claim that the dates of historical events have been deliberately distorted. These include the phantom time hypothesis of German conspiracy theorist Heribert Illig, who in 1991 published an allegation that 297 years had been added to the calendar by establishment figures such as Pope Sylvester II in order to position themselves at the millennium.[292]

A comparable theory, known as the New Chronology, is most closely associated with Russian theorist Anatoly Fomenko. Fomenko holds that history is many centuries shorter than is widely believed and that numerous historical documents have been fabricated, and legitimate documents destroyed, for political ends. Adherents of such ideas have included chess grandmaster Garry Kasparov.[293]

Boxing has featured in conspiracy theories, such as the claims that the second Ali-Liston fight[302] and the first Bradley-Pacquiao fight were fixed.[303]

The theft and disappearance of the Irish-bred racehorse Shergar in 1983 has prompted many conspiracy theorists to speculate about involvement by the Mafia, the IRA and Colonel Gaddafi.[304]

The "frozen envelope theory" suggests that the National Basketball Association rigged its 1985 draft lottery so that Patrick Ewing would join the New York Knicks. Theorists claim that a lottery envelope was chilled so that it could be identified by touch.[305] A similar "hot balls theory", promoted by Scottish football manager David Moyes, suggests that certain balls used in draws for UEFA competitions have been warmed to achieve specific outcomes.[306]

The 1984 Firecracker 400 at Daytona International Speedway in Daytona, Florida, was the first NASCAR race to be attended by a sitting U.S. president, Ronald Reagan, and was driver Richard Petty's 200th and final career victory. Rival driver Cale Yarborough's premature retirement to the pit road has prompted conspiracy theorists to allege that organizers fixed the race in order to receive good publicity for the event.[307]

On the day of the 1998 World Cup Final, Brazilian striker Ronaldo suffered a convulsive fit.[308] Ronaldo was initially removed from the starting lineup 72 minutes before the match, with the teamsheet released to a stunned world media, before he was reinstated by the Brazil coach shortly before kick off.[309][310] Ronaldo "sleepwalked" through the final, with France winning the game.[310] The nature of the incident set off a trail of questions and allegations which persisted for years, with Alex Bellos writing in The Guardian, "When Ronaldo's health scare was revealed after the match, the situation's unique circumstances lent itself to fabulous conspiracy theories. Here was the world's most famous sportsman, about to take part in the most important match of his career, when he suddenly, inexplicably, fell ill. Was it stress, epilepsy, or had he been drugged?"[311] Questions also circulated into who made Ronaldo play the game. The Brazil coach insisted he had the final say, but much speculation focused on sportswear company Nike, Brazil's multimillion-dollar sponsor—whom many Brazilians thought had too much control—putting pressure on the striker to play against medical advice.[311]

NRG Stadium before Super Bowl LI

The New England Patriots have also been involved in numerous conspiracy theories.[312] During their AFC Championship 24–20 victory over the Jacksonville Jaguars, several conspiracy theories spread stating that the referees helped the Patriots advance to Super Bowl LII.[313] However, sports analyst Stephen A. Smith stated the Jaguars were not robbed, but that they had no one to blame but themselves for the loss.[314] There were also conspiracy theories regarding the Super Bowl LI matchup between the Patriots and the Atlanta Falcons stating that the game was rigged[315] while others said the Falcons made questionable play-calls at the end of the game that resulted in them blowing a 28–3 lead.[316]