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Aircraft hijacking

Aircraft hijacking (also known as airplane hijacking, skyjacking, plane hijacking, plane jacking, air robbery, air piracy, or aircraft piracy, with the last term used within the special aircraft jurisdiction of the United States) is the unlawful seizure of an aircraft by an individual or a group. Dating from the earliest of hijackings, most cases involve the pilot being forced to fly according to the hijacker's demands. There have also been incidents where the hijackers have overpowered the flight crew, made unauthorized entry into the cockpit and flown them into buildings – most notably in the September 11 attacks – and in some cases, planes have been hijacked by the official pilot or co-pilot, such as with Ethiopian Airlines Flight 702.

Unlike carjacking or sea piracy, an aircraft hijacking is not usually committed for robbery or theft. Individuals driven by personal gain often divert planes to destinations where they are not planning to go themselves. Some hijackers intend to use passengers or crew as hostages, either for monetary ransom or for some political or administrative concession by authorities. Various motives have driven such occurrences, such as demanding the release of certain high-profile individuals or for the right of political asylum (notably Ethiopian Airlines Flight 961), but sometimes a hijacking may have been affected by a failed private life or financial distress, as in the case of Aarno Lamminparras in Finnair Flight 405. Hijackings involving hostages have produced violent confrontations between hijackers and the authorities, during negotiation and settlement. In several cases – most famously Air France Flight 139, Lufthansa Flight 181, and Air France Flight 8969 – the hijackers were not satisfied and showed no inclination to surrender, resulting in the deployment of counterterrorist police tactical units or special forces to rescue the passengers.

In most jurisdictions of the world, aircraft hijacking is punishable by life imprisonment or a long prison sentence. In most jurisdictions where the death penalty is a legal punishment, aircraft hijacking is a capital crime, including in China, India, Liberia, and the U.S. states of Georgia and Mississippi.

History
Airplane hijackings have occurred since the early days of flight. These can be classified in the following eras: 1929–1957, 1958–1979, 1980–2000 and 2001–present. Early incidents involved light planes, but this later involved passenger aircraft as commercial aviation became widespread.

1929–1957
Between 1929 and 1957, there were fewer than 20 incidents of reported hijackings worldwide; several occurred in Eastern Europe.

One of the first unconfirmed hijackings occurred in December 1929. J. Howard "Doc" DeCelles was flying a postal route for a Mexican firm, Transportes Aeras Transcontinentales, ferrying mail from San Luis Potosí to Torreon and then on to Guadalajara. Saturnino Cedillo, the governor of the state of San Luis Potosí, ordered him to divert. Several other men were also involved, and through an interpreter, DeCelles had no choice but to comply. He was allegedly held captive for several hours under armed guard before being released.

The first recorded aircraft hijack took place on February 21, 1931, in Arequipa, Peru. Byron Richards, flying a Ford Tri-Motor, was approached on the ground by armed revolutionaries. He refused to fly them anywhere during a 10-day standoff. Richards was informed that the revolution was successful and he could be freed in return for flying one of the men to Lima.

The following year, in September 1932, a Sikorsky S-38 with registration P-BDAD, registered to Nyrba do Brasil, was seized in the company's hangar by three men, who took a hostage. Despite having no flying experience, they managed to take off. However, the aircraft crashed in São João de Meriti, killing the four men. Apparently, the hijack was related to the events of the Constitutionalist Revolution in São Paulo; it is considered to be the first hijack that took place in Brazil.

On October 28, 1939, the first murder on a plane took place in Brookfield, Missouri, US. The victim was Carl Bivens, a flight instructor, who was teaching a man named Earnest P. "Larry" Pletch. While airborne in a Taylor Cub monoplane, Pletch shot Bivens twice in the back of the head. Pletch later told prosecutors, "Carl was telling me I had a natural ability and I should follow that line", adding, "I had a revolver in my pocket and without saying a word to him, I took it out of my overalls and I fired a bullet into the back of his head. He never knew what struck him." The Chicago Daily Tribune stated it was one of the most spectacular crimes of the 20th century. Pletch pleaded guilty and was sentenced to life in prison. However, he was released on March 1, 1957, after serving 17 years, and lived until June 2001.

In 1942 near Malta, two New Zealanders, a South African, and an Englishman achieved the first confirmed in-air hijack when they overpowered their captors aboard an Italian seaplane that was flying them to a prisoner-of-war camp. As they approached an Allied base, they were strafed by Supermarine Spitfires unaware of the aircraft's true operators and forced to land on the water. However, all on board survived to be picked up by a British boat.

In the years following World War II, Philip Baum, an aviation security expert, suggested that the development of a rebellious youth "piggybacking on to any cause which challenged the status quo or acted in support of those deemed oppressed" may have been a contributor to attacks against the aviation field. The first hijacking of a commercial flight occurred on the Cathay Pacific Miss Macao on July 16, 1948. After this incident and others in the 1950s, airlines recommended that flight crews comply with the hijackers' demands rather than risk a violent confrontation. There were also various hijacking incidents and assaults on planes in China and the Middle East.

On 23 July 1956, in the Hungarian People's Republic, seven passengers hijacked a domestic flight of Malév Hungarian Airlines, a Lisunov Li-2 (registration HA-LIG), to escape from behind the Iron Curtain, and flew it to West Germany. The aircraft landed safely at Ingolstadt Air Base without injuries.

An aircraft belonging to the airline Lloyd Aereo Boliviano was hijacked in Bolivia on September 26, 1956. The DC-4 was carrying 47 prisoners who were being transported from Santa Cruz, Bolivia, to El Alto, in La Paz. A political group was waiting to take them to a concentration camp located in Carahuara de Carangas, Oruro. The 47 prisoners overpowered the crew and gained control of the aircraft while airborne and diverted the plane to Tartagal, Argentina. Prisoners took control of the aircraft and received instructions to again fly to Salta, Argentina, as the airfield in Tartagal was not big enough. Upon landing, they told the government of the injustice they were subjected to, and received political asylum.

On October 22, 1956, French forces hijacked a Moroccan airplane carrying leaders of the Algerian National Liberation Front (FLN) during the ongoing Algerian War. The plane, which was carrying Ahmed Ben Bella, Hocine Aït Ahmed, and Mohamed Boudiaf, was destined to leave from Palma de Mallorca for Tunis where the FLN leaders were to conference with Prime Minister Habib Bourguiba, but French forces redirected the flight to occupied Algiers, where the FLN leaders were arrested.

1958–1979
Between 1958 and 1967, there were approximately 40 hijackings worldwide. Beginning in 1958, hijackings from Cuba to other destinations started to occur; in 1961, hijackings from other destinations to Cuba became prevalent. The first happened on May 1, 1961, on a flight from Miami to Key West. The perpetrator, armed with a knife and gun, forced the captain to land in Cuba.

Australia was relatively untouched by the threat of hijackings until July 19, 1960. On that evening, a 22-year-old Russian man attempted to divert Trans Australia Airlines Flight 408 to Darwin or Singapore. The crew were able to subdue the man after a brief struggle.

According to the FAA, in the 1960s, there were 100 attempts of hijackings involving U.S. aircraft: 77 successful and 23 unsuccessful. Recognizing the danger early, the FAA issued a directive on July 28, 1961, which prohibits unauthorized persons from carrying concealed firearms and interfering with crew member duties. The Federal Aviation Act of 1958 was amended to impose severe penalties for those seizing control of a commercial aircraft. Airlines could also refuse to transport passengers who were likely to cause danger. That same year, the FAA and Department of Justice created the Peace Officers Program which put trained marshals on flights. A few years later, on May 7, 1964, the FAA adopted a rule requiring that cockpit doors on commercial aircraft be kept locked at all times.

In a five-year period (1968–1972) the world experienced 326 hijack attempts, or one every 5.6 days. The incidents were frequent and often just an inconvenience, which resulted in television shows creating parodies. Time magazine even ran a lighthearted comedy piece called "What to Do When the Hijacker Comes". Most incidents occurred in the United States. There were two distinct types: hijackings for transportation elsewhere and hijackings for extortion with the threat of harm.

Between 1968 and 1972, there were 90 recorded transport attempts to Cuba. In contrast, there were 26 extortion attempts (see table on the right). The longest and first transcontinental (Los Angeles, Denver, New York, Bangor, Shannon and Rome) hijacking from the US started on 31 October 1969.

The Eastern Air Lines Shuttle Flight 1320 on May 17, 1970, witnessed the first fatality in the course of a U.S. hijacking.

Incidents also became problematic outside of the U.S. For instance, in 1968, El Al Flight 426 was seized by Popular Front for the Liberation of Palestine (PFLP) militants on 23 July, an incident which lasted 40 days, making it one of the longest. This record was later beaten in 1999.

As a result of the evolving threat, President Nixon issued a directive in 1970 to promote security at airports, electronic surveillance and multilateral agreements for tackling the problem.

The International Civil Aviation Organization (ICAO) issued a report on aircraft hijacking in July 1970. Beginning in 1969 until the end of June 1970, there were 118 incidents of unlawful seizure of aircraft and 14 incidents of sabotage and armed attacks against civil aviation. This involved airlines of 47 countries and more than 7,000 passengers. In this period, 96 people were killed and 57 were injured as a result of hijacking, sabotage and armed attacks.

The ICAO stated that this is not isolated to one nation or one region, but a worldwide issue to the safe growth of international civil aviation. Incidents also became notorious – in 1971, a man known as D. B. Cooper hijacked a plane and extorted US$200,000 in ransom before parachuting over Oregon. He was never identified.

On August 20, 1971, a Pakistan Air Force T-33 military plane was hijacked prior the Indo-Pakistani war of 1971 in Karachi. Lieutenant Matiur Rahman attacked Officer Rashid Minhas and attempted to land in India. Minhas deliberately crashed the plane into the ground near Thatta to prevent the diversion.

Countries around the world continued their efforts to tackle crimes committed on-board planes. The Tokyo Convention, drafted in 1958, established an agreement between signatories that the "state in which the aircraft is registered is competent to exercise jurisdiction over crimes committed on board that aircraft while it is in flight". While the Convention does not make hijacking an international crime, it does contain provisions which obligate the country in which a hijacked aircraft lands to restore the aircraft to its responsible owner, and allow the passengers and crew to continue their journey. The Convention came into force in December 1969.

A year later, in December 1970, the Hague Convention was drafted which punishes hijackers, enabling each state to prosecute a hijacker if that state does not extradite them, and to deprive them from asylum from prosecution.

On December 5, 1972, the FAA issued emergency rules requiring all passengers and their carry-on baggage to be screened. Airports slowly implemented walk-through metal detectors, hand-searches and X-ray machines, to prohibit weapons and explosive devices. These rules came into effect on January 5, 1973, and were welcomed by most of the public. In 1974, Congress enacted a statute which provided for the death penalty for acts of aircraft piracy resulting in death. Between 1968 and 1977, there were approximately 41 hijackings per year.

In the 1970s, in pursuit of their demands for Croatia's independence from the Socialist Republic of Yugoslavia, Croatian nationalists hijacked several civilian airliners, such as Scandinavian Airlines System Flight 130 and TWA Flight 355.

1980–2000
By 1980, airport screening and greater cooperation from the international community led to fewer successful hijackings; the number of events had significantly dropped below the 1968 level. Between 1978 and 1988, there were roughly 26 incidents of hijackings a year. A new threat emerged in the 1980s: organised terrorists destroying aircraft to draw attention. For instance, terrorist groups were responsible for the bombing of Air India Flight 182 over the Irish coast. In 1988, Pan Am Flight 103 was bombed flying over Scotland. Terrorist activity which included hijack attempts in the Middle East were also a cause of concern.

During the 1990s, there was relative peace in the United States airspace as the threat of domestic hijacking was seen as a distant memory. Globally, however, hijackings still persisted. Between 1993 and 2003, the highest number of hijackings occurred in 1993 (see table below). This number can be attributed to events in China where hijackers were trying to gain political asylum in Taiwan. Europe and the rest of East Asia were not immune either. On December 26, 1994, Air France Flight 8969 with 172 passengers and crew was hijacked after leaving Algiers. Authorities believed that the goal was to crash the plane into the Eiffel Tower. On June 21, 1995, All Nippon Airways Flight 857 was hijacked by a man claiming to be a member of the Aum Shinrikyo religious cult, demanding the release of its imprisoned leader Shoko Asahara. The incident was resolved when the police stormed the plane.

On October 17, 1996, the first hijacking that was brought to an end while airborne was carried out by four operatives of the Austrian special law enforcement unit Cobra on a Russian Aeroflot flight from Malta to Lagos, Nigeria, aboard a Tupolev Tu-154. The operatives escorted inmates detained for deportation to their homelands and were equipped with weapons and gloves. On 12 April 1999, six ELN members hijacked a Fokker 50 of Avianca Flight 9463, flying from Bucaramanga to Bogotá. Many hostages were held for more than a year, and the last hostage was finally freed 19 months after the hijacking.

2001–present
On September 11, 2001, four airliners were hijacked by 19 Al-Qaeda extremists: American Airlines Flight 11, United Airlines Flight 175, American Airlines Flight 77 and United Airlines Flight 93. The first two planes were deliberately crashed into the Twin Towers of the World Trade Center in New York City and the third was crashed into The Pentagon in Arlington County, Virginia. The fourth crashed in a field in Stonycreek Township near Shanksville, Pennsylvania after crew and passengers attempted to overpower the hijackers. Authorities believe that the intended target was the U.S. Capitol or the White House in Washington DC. In total, 2,996 people (2,977 if excluding the perpetrators) perished and more than 6,000 were injured in the attacks, making the hijackings the deadliest in modern history.

Following the attacks, the U.S. government formed the Transportation Security Administration (TSA) to handle airport screening at U.S. airports. Government agencies around the world tightened their airport security, procedures and intelligence gathering. Until the September 11 attacks, there had never been an incident whereby a passenger aircraft was used as a weapon of mass destruction. The 9/11 Commission report stated that it was always assumed that a "hijacking would take the traditional form"; therefore, airline crews never had a contingency plan for a suicide-hijacking. As Patrick Smith, an airline pilot, summarizes:

"One of the big ironies here is the success of the 2001 attacks had nothing to do with airport security in the first place. It was a failure of national security. What the men actually exploited was a weakness in our mind-set – a set of presumptions based on decades-long track record of hijackings. In years past, a hijacking meant a diversion, with hostage negotiations and standoffs. The only weapon that mattered was the intangible one: the element of surprise."

Throughout the mid-2000s, hijackings still occurred but there were much fewer incidents and casualties. The number of incidents had been declining, even before the September 11 attacks. One notable incident in 2006 was the hijacking of Turkish Airlines Flight 1476, flying from Tirana to Istanbul, which was seized by a man named Hakan Ekinci. The aircraft, with 107 passengers and 6 crew, made distress calls to air traffic control and the plane was escorted by military aircraft before landing safely at Brindisi, Italy. In 2007, several incidents occurred in the Middle East and Northern Africa; hijackers in one of these incidents claimed to be affiliated with Al-Qaeda. Towards the end of the decade, AeroMexico experienced its first terror incident when Flight 576 was hijacked by a man demanding to speak with President Calderón. In 2007, a man failed to hijack a 737-200 with 103 people on board over Chad.

Between 2010 and 2019, the Aviation Safety Network estimates there have been 15 hijackings worldwide with three fatalities. This is a considerably lower figure than in previous decades which can be attributed to greater security enhancements and awareness of September 11–style attacks. On June 29, 2012, an attempt was made to hijack Tianjin Airlines Flight GS7554 from Hotan to Ürümqi in China. More recently was the 2016 hijacking of EgyptAir Flight MS181, involving an Egyptian man who claimed to have a bomb and ordered the plane to land in Cyprus. He surrendered several hours later, after freeing the passengers and crew.

Countermeasures
As a result of the large number of U.S.–Cuba hijackings in the late 1960s to early 1970s, international airports introduced screening technology such as metal detectors, X-ray machines and explosive detection tools. In the U.S, these rules were enforced starting from January 1973 and were eventually copied around the world. These security measures did make hijacking a "higher-risk proposition" and deter criminals in later decades. Until September 2001, the FAA set and enforced a "layered" system of defense: hijacking intelligence, passenger pre-screening, checkpoint screening and on-board security. The idea was that if one layer were later to fail, another would be able stop a hijacker from boarding a plane. However, the 9/11 Commission found that this layered approach was flawed and unsuitable to prevent the September 11 attacks. The U.S Transportation Security Administration has since strengthened this approach, with a greater emphasis on intelligence sharing.

On-board security

In the history of hijackings, most incidents involved planes being forced to land at a certain destination with demands. As a result, commercial airliners adopted a "total compliance" rule which taught pilots and cabin crew to comply with the hijackers' demands. Crews advise passengers to sit quietly to increase their chances of survival. The ultimate goal is to land the plane safely and let the security forces handle the situation. The FAA suggested that the longer a hijacking persisted, the more likely it would end peacefully with the hijackers reaching their goal. Although total compliance is still relevant, the events of September 11 changed this paradigm as this technique cannot prevent a murder-suicide hijacking.

After the September 11 attacks, it became evident that each hijacking situation needs to be evaluated on a case-by-case basis. Cabin crew, now aware of the severe consequences, have a greater responsibility for maintaining control of their aircraft. Most airlines also give crew members training in self-defense tactics. Ever since the 1970s, crew are taught to be vigilant for suspicious behaviour. For example, passengers who have no carry-on luggage, or are standing next to the cockpit door with fidgety movements. There have been various incidents when crew and passengers intervened to prevent attacks: on December 22, 2001, Richard Reid attempted to ignite explosives on American Airlines Flight 63. In 2009, on Northwest Flight 253, Umar Farouk Abdulmutallab attempted to detonate explosives sewn into his underwear. In 2012, the attempted hijacking of Tianjin Airlines Flight 7554 was stopped when cabin crew placed a trolley in-front of the cockpit door and asked passengers for help.

Cockpit security
As early as 1964, the FAA required cockpit doors on commercial aircraft be kept locked during flight. In 2002, U.S. Congress passed the Arming Pilots Against Terrorism Act, allowing pilots at U.S. airlines to carry guns in the cockpit. Since 2003, these pilots are known as Federal Flight Deck Officers. It is estimated that one in 10 of the 125,000 commercial pilots are trained and armed. Also in 2002, aircraft manufacturers such as Airbus introduced a reinforced cockpit door which is resistant to gunfire and forced entry. Shortly afterwards, the FAA required operators of more than 6,000 aircraft to install tougher cockpit doors by April 9, 2003. Rules were also tightened to restrict cockpit access and make it easier for pilots to lock the doors. In 2015, Germanwings Flight 9525 was seized by the co-pilot and deliberately crashed, while the captain was out. The captain was unable to re-enter the cockpit, because the airline had already reinforced the cockpit door. The European Aviation Safety Agency issued a recommendation for airlines to ensure that at least two people, one pilot and a member of cabin crew, occupy the cockpit during flight. The FAA in the United States enforce a similar rule.

Air marshal service
Some countries operate a marshal service, which puts members of law enforcement on high-risk flights based on intelligence. Their role is to keep passengers safe, by preventing hijackings and other criminal acts committed on a plane. Federal marshals in the U.S. are required to identify themselves before boarding a plane; marshals of other countries often are not. According to the Congressional Research Service, the budget for the U.S. Federal Air Marshal Service was US$719 million in 2007. Marshals often sit as regular passengers, at the front of the plane to allow observation of the cockpit. Despite the expansion of the marshal service, they cannot be on every plane, and they rarely face a real threat on a flight. Critics have questioned the need for them.

Air traffic control
There is no generic or set of rules for handling a hijacking situation. Air traffic controllers are expected to exercise their best judgement and expertise when dealing with the apparent consequences of an unlawful interference or hijack. Depending on the jurisdiction, the controller will inform authorities, such as the military, who will escort the hijacked plane. Controllers are expected to keep communications to a minimum and clear the runway for a possible landing.

Germany
In January 2005, a federal law came into force in Germany, called the Luftsicherheitsgesetz, which allows "direct action by armed force" against a hijacked aircraft to prevent a September 11–style attack. However, in February 2006 the Federal Constitutional Court struck down these provisions of the law, stating such preventive measures were unconstitutional and would essentially be state-sponsored murder, even if such an act would save many more lives on the ground. The main reason behind this decision was that the state would effectively be killing innocent hostages in order to avoid a terrorist attack. The Court also ruled that the Minister of Defense is constitutionally not entitled to act in terrorism matters, as this is the duty of the state and federal police forces. President of Germany Horst Köhler urged judicial review of the constitutionality of the Luftsicherheitsgesetz after he signed it into law in 2005.

India
India published its anti-hijacking policy in August 2005. The policy came into force after approval from the Cabinet Committee on Security (CCS). The main points of the policy are:
 * Any attempt to hijack will be considered an act of aggression against the country and will prompt a response fit for an aggressor.
 * Hijackers, if captured alive, will be put on trial, convicted, and sentenced to death.
 * Hijackers will be engaged in negotiations only to bring the incident to an end, to comfort passengers and to prevent loss of lives.
 * The hijacked plane will be shot down if it is deemed to become a missile heading for strategic targets.
 * The hijacked plane will be escorted by armed fighter aircraft and will be forced to land.
 * A hijacked grounded plane will not be allowed to take off under any circumstance.

United States
Prior to the September 11 attacks, countermeasures were focused on "traditional" hijackings. As such, there were no specific rules for handling suicide hijackings, where aircraft would be used as a weapon. Moreover, military response at the time consisted of multiple uncoordinated units, each with its own set of rules of engagement with no unified command structure. Soon after the attacks, however, new rules of engagement were introduced, authorizing the North American Aerospace Defense Command (NORAD), the U.S. Air Force command tasked with protecting U.S. airspace, to shoot down hijacked commercial airliners if the plane is deemed a threat to strategic targets. In 2003, the military stated that fighter pilots exercise this scenario several times a week.

Other countries
Poland and Russia are among other countries that have had laws or directives for shooting down hijacked planes. However, in September 2008 the Polish Constitutional Court ruled that the Polish rules were unconstitutional, and voided them.

Tokyo Convention
The Convention on Offences and Certain Other Acts Committed on Board Aircraft, known as the Tokyo Convention, is an international treaty which entered force on December 4, 1969. , it has been ratified by 186 parties. Article 11 of the Tokyo Convention states the following: "1. When a person on board has unlawfully committed by force or threat thereof an act of interference, seizure, or other wrongful exercise of control of an aircraft in flight or when such an act is about to be committed, Contracting States shall take all appropriate measures to restore control of the aircraft to its lawful commander or to preserve his control of the aircraft.

2. In the cases contemplated in the preceding paragraph, the Contracting State in which the aircraft lands shall permit its passengers and crew to continue their journey as soon as practicable, and shall return the aircraft and its cargo to the persons lawfully entitled to possession." The signatories agree that if there is unlawful takeover of an aircraft, or a threat of it on their territory, then they will take all necessary measures to regain or keep control over an aircraft. The captain can also disembark a suspected person on the territory of any country, where the aircraft lands, and that country must agree to it, as stated in Articles 8 and 12 of the convention.

Hague Convention
The Convention for the Suppression of Unlawful Seizure of Aircraft (known as the Hague Convention) went into effect on October 14, 1971. , the convention has 185 signatories.

Montreal Convention
The Montreal Convention is a multilateral treaty adopted by a diplomatic meeting of ICAO member states in 1999. It amended important provisions of the Warsaw Convention's regime concerning compensation for the victims of air disasters.

In popular culture

 * The 1942 Superman film Japoteurs depicts Superman saving Metropolis from a bombardier hijacked by Japanese spies during World War II.
 * The 1997 Hollywood film Air Force One is based on the fictional hijacking of Air Force One.
 * Hijacking is a central theme in the Turbulence movie trilogy.
 * In Mission: Impossible 2, one of the film's antagonists hijacks a plane at the start of the movie.
 * The 2006 film United 93 is based on the real events onboard United Airlines Flight 93 one of the four airlines hijacked during the September 11 attacks.
 * The 2012 film The Dark Knight Rises features an opening sequence of hijacking and crashing an aircraft for the purpose of kidnapping a man and faking his death.
 * The film Con Air features a U.S. Marshals aircraft being hijacked by the maximum-security prisoners on board.
 * The Taking of Flight 847: The Uli Derickson Story was a made-for-TV film based on the actual hijacking of TWA Flight 847, as seen through the eyes of the chief flight attendant Uli Derickson.
 * Passenger 57 depicts an airline security expert trapped on a passenger jet when terrorists seize control.
 * Executive Decision depicts a Boeing 747 carrying 400 passengers being hijacked by Algerian terrorists, and U.S. marine and Army special forces use a reconnaissance aircraft to re-take the plane.
 * Skyjacked is a 1972 film about a crazed Vietnam War veteran hijacking an airliner, demanding to be taken to the Soviet Union.
 * The 1986 film The Delta Force depicted a Special Forces squad tasked with retaking a plane hijacked by Lebanese terrorists, loosely based on the hijacking of TWA Flight 847.
 * The 2004 film The Assassination of Richard Nixon, based on a true incident, depicts a disillusioned tire salesman who attempts to hijack a plane in 1974 and crash it into the White House. His attempt failed and he was mortally wounded by an airport policeman. He killed himself before police stormed the plane.
 * The 2006 film Snakes On a Plane is a fictional story about aircraft piracy through the in-flight release of venomous snakes.
 * In Harold and Kumar 2, two U.S. Air Marshals subdue Harold and Kumar on board a plane after mistaking them for terrorists.
 * The 2011 film Payanam is a movie entirely based on the negotiations and rescue operations done by the Indian security forces in response to a flight hijacking incident.
 * In the 2013 video game Grand Theft Auto V the player is tasked with hijacking a cargo plane carrying a large shipment of weapons by crashing a crop duster into the cargo bay mid-flight and fighting to seize control of the aircraft. The cargo plane is later shot down by the US Air Force, requiring the player to bail out.
 * The 2014 film Non-Stop depicts an aircraft hijacking.
 * The Indian film Neerja is based on the hijacking of Pan Am Flight 73 in Karachi.
 * In 2016, German television broadcast the film The Verdict (2016 film), in which a Bundeswehr military pilot shoots down a hijacked passenger plane with 164 people on board that was heading towards a stadium filled with 70,000 people. Following the broadcast, a public vote was called for in Germany, Austria and Switzerland, and 86.9% of viewers voted that the pilot was not guilty of murder.
 * The 2019 film 7500 depicts the struggle of a pilot to land an aircraft and maintain control of its cockpit during a hijacking.
 * The 2023 Apple TV+ original series Hijack stars Idris Elba as Sam, a talented business negotiator, who embarks on a mission to broker a peaceful end to a hijacking of his 7-hour flight from Dubai to London.

title: Aircraft hijacking


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Acropolis of Athens

The Acropolis of Athens (Ακρόπολη Αθηνών) is an ancient citadel located on a rocky outcrop above the city of Athens, Greece, and contains the remains of several ancient buildings of great architectural and historical significance, the most famous being the Parthenon. The word Acropolis is from the Greek words ἄκρον (akron, "highest point, extremity") and πόλις (polis, "city"). The term acropolis is generic and there are many other acropoleis in Greece. During ancient times the Acropolis of Athens was also more properly known as Cecropia, after the legendary serpent-man Cecrops, the supposed first Athenian king.

While there is evidence that the hill was inhabited as early as the fourth millennium BC, it was Pericles (c. 495–429 BC) in the fifth century BC who coordinated the construction of the buildings whose present remains are the site's most important ones, including the Parthenon, the Propylaea, the Erechtheion and the Temple of Athena Nike. The Parthenon and the other buildings were seriously damaged during the 1687 siege by the Venetians during the Morean War when gunpowder being stored by the then Turkish rulers in the Parthenon was hit by a Venetian bombardment and exploded.

Early settlement
The Acropolis is located on a flattish-topped rock that rises 150 m above sea level in the city of Athens, with a surface area of about 3 ha. While the earliest artifacts date to the Middle Neolithic era, there have been documented habitations in Attica from the Early Neolithic period (6th millennium BC).

There is little doubt that a Mycenaean megaron palace stood upon the hill during the late Bronze Age. Nothing of this structure survives except, probably, a single limestone column base and pieces of several sandstone steps. Soon after the palace was constructed, a Cyclopean massive circuit wall was built, 760 meters long, up to 10 meters high, and ranging from 3.5 to 6 meters thick. From the end of the Helladic IIIB (1300–1200 BC) on, this wall would serve as the main defense for the acropolis until the 5th century. The wall consisted of two parapets built with large stone blocks and cemented with an earth mortar called emplekton (Greek: ἔμπλεκτον). The wall uses typical Mycenaean conventions in that it followed the natural contour of the terrain and its gate, which was towards the south, was arranged obliquely, with a parapet and tower overhanging the incomers' right-hand side, thus facilitating defense. There were two lesser approaches up the hill on its north side, consisting of steep, narrow flights of steps cut in the rock. Homer is assumed to refer to this fortification when he mentions the "strong-built house of Erechtheus" (Odyssey 7.81). At some time before the 13th century BC, an earthquake caused a fissure near the northeastern edge of the Acropolis. This fissure extended some 35 meters to a bed of soft marl in which a well was dug. An elaborate set of stairs was built and the well served as an invaluable, protected source of drinking water during times of siege for some portion of the Mycenaean period.

Archaic Acropolis

Not much is known about the architectural appearance of the Acropolis until the Archaic era. During the 7th and the 6th centuries BC, the site was controlled by Kylon during the failed Kylonian revolt, and twice by Peisistratos; each of these was attempts directed at seizing political power by coups d'état. Apart from the Hekatompedon mentioned later, Peisistratos also built an entry gate or propylaea. Nevertheless, it seems that a nine-gate wall, the Enneapylon, had been built around the acropolis hill and incorporated the biggest water spring, the Clepsydra, at the northwestern foot.

A temple to Athena Polias, the tutelary deity of the city, was erected between 570 and 550 BC. This Doric limestone building, from which many relics survive, is referred to as the Hekatompedon (Greek for "hundred–footed"), Ur-Parthenon (German for "original Parthenon" or "primitive Parthenon"), H–Architecture or Bluebeard temple, after the pedimental three-bodied man-serpent sculpture, whose beards were painted dark blue. Whether this temple replaced an older one or just a sacred precinct or altar is not known. Probably, the Hekatompedon was built where the Parthenon now stands.

Between 529 and 520 BC yet another temple was built by the Pisistratids, the Old Temple of Athena, usually referred to as the Arkhaios Neōs (ἀρχαῖος νεώς, "ancient temple"). This temple of Athena Polias was built upon the Dörpfeld foundations, between the Erechtheion and the still-standing Parthenon. The Arkhaios Neōs was destroyed as part of the Achaemenid destruction of Athens during the Second Persian invasion of Greece during 480–479 BC; however, the temple was probably reconstructed during 454 BC, since the treasury of the Delian League was transferred in its opisthodomos. The temple may have been burnt down during 406/405 BC as Xenophon mentions that the old temple of Athena was set afire. Pausanias does not mention it in his 2nd century AD Description of Greece.

Around 500 BC the Hekatompedon was dismantled to make place for a new grander building, the Older Parthenon (often referred to as the Pre-Parthenon or Early Parthenon). For this reason, Athenians decided to stop the construction of the Olympieion temple which was connoted with the tyrant Peisistratos and his sons, and, instead, used the Piraeus limestone destined for the Olympieion to build the Older Parthenon. To accommodate the new temple, the south part of the summit was cleared, made level by adding some 8,000 two-ton blocks of limestone, a foundation 11 m deep at some points, and the rest was filled with soil kept in place by the retaining wall. However, after the victorious Battle of Marathon in 490 BC, the plan was revised and marble was used instead. The limestone phase of the building is referred to as Pre-Parthenon I and the marble phase as Pre-Parthenon II. In 485 BC, construction stalled to save resources as Xerxes became king of Persia, and war seemed imminent. The Older Parthenon was still under construction when the Persians invaded and sacked the city in 480 BC. The building was burned and looted, along with the Ancient Temple and practically everything else on the rock. After the Persian crisis had subsided, the Athenians incorporated many architectural parts of the unfinished temple (unfluted column drums, triglyphs, metopes, etc.) into the newly built northern curtain wall of the Acropolis, where they served as a prominent "war memorial" and can still be seen today. The devastated site was cleared of debris. Statuary, cult objects, religious offerings, and unsalvageable architectural members were buried ceremoniously in several deeply dug pits on the hill, serving conveniently as a fill for the artificial plateau created around the Classical Parthenon. This "Persian debris" was the richest archaeological deposit excavated on the Acropolis by 1890.

The Periclean building program

After winning at Eurymedon during 468 BC, Cimon and Themistocles ordered the reconstruction of the southern and northern walls of the Acropolis. Most of the major temples, including the Parthenon, were rebuilt by order of Pericles during the so-called Golden Age of Athens (460–430 BC). Phidias, an Athenian sculptor, and Ictinus and Callicrates, two famous architects, were responsible for the reconstruction.

During 437 BC, Mnesicles started building the Propylaea, a monumental gate at the western end of the Acropolis with Doric columns of Pentelic marble, built partly upon the old Propylaea of Peisistratos. These colonnades were almost finished during 432 BC and had two wings, the northern one decorated with paintings by Polygnotus. About the same time, south of the Propylaea, building started on the small Ionic Temple of Athena Nike in Pentelic marble with tetrastyle porches, preserving the essentials of Greek temple design. After an interruption caused by the Peloponnesian War, the temple was finished during the time of Nicias' peace, between 421 BC and 409 BC.

Construction of the elegant temple of Erechtheion in Pentelic marble (421–406 BC) was by a complex plan which took account of the extremely uneven ground and the need to circumvent several shrines in the area. The entrance, facing east, is lined with six Ionic columns. Unusually, the temple has two porches, one on the northwest corner borne by Ionic columns, the other, to the southwest, supported by huge female figures or caryatids. The eastern part of the temple was dedicated to Athena Polias, while the western part, serving the cult of the archaic king Poseidon-Erechtheus, housed the altars of Hephaestus and Voutos, brother of Erechtheus. Little is known about the original plan of the interior, which was destroyed by fire during the first century BC and has been rebuilt several times.

During the same period, a combination of sacred precincts including the temples of Athena Polias, Poseidon, Erechtheus, Cecrops, Herse, Pandrosos and Aglauros, with its Kore Porch (Porch of the Maidens) or Caryatids' Balcony was begun. Between the temple of Athena Nike and the Parthenon, there was the Sanctuary of Artemis Brauronia (or the Brauroneion), the goddess represented as a bear and worshipped in the deme of Brauron. According to Pausanias, a wooden statue or xoanon of the goddess and a statue of Artemis made by Praxiteles during the 4th century BC were both in the sanctuary.

Behind the Propylaea, Phidias' gigantic bronze statue of Athena Promachos ("Athena who fights in the front line"), built between 450 BC and 448 BC, dominated. The base was 1.50 m high, while the total height of the statue was 9 m. The goddess held a lance, the gilt tip of which could be seen as a reflection by crews on ships rounding Cape Sounion, and a giant shield on the left side, decorated by Mys with images of the fight between the Centaurs and the Lapiths. Other monuments that have left almost nothing visible to the present day are the Chalkotheke, the Pandroseion, Pandion's sanctuary, Athena's altar, Zeus Polieus's sanctuary and, from Roman times, the circular Temple of Roma and Augustus.

Hellenistic and Roman Period

During the Hellenistic and Roman periods, many of the existing buildings in the area of the Acropolis were repaired to remedy damage from age and occasionally war. Monuments to foreign kings were erected, notably those of the Attalid kings of Pergamon Attalos II (in front of the NW corner of the Parthenon), and Eumenes II, in front of the Propylaea. These were rededicated during the early Roman Empire to Augustus or Claudius (uncertain) and Agrippa, respectively. Eumenes was also responsible for constructing a stoa on the south slope, similar to that of Attalos in the agora below.

During the Julio-Claudian period, the Temple of Roma and Augustus, a small, round edifice about 23 meters from the Parthenon, was to be the last significant ancient construction on the summit of the rock. Around the same time, on the north slope, in a cave next to the one dedicated to Pan since the Classical period, a sanctuary was founded where the archons dedicated to Apollo on assuming office. During 161 AD, on the south slope, the Roman Herodes Atticus built his grand amphitheater or odeon. It was destroyed by the invading Herulians a century later but was reconstructed during the 1950s.

During the 3rd century, under threat from a Herulian invasion, repairs were made to the Acropolis walls, and the Beulé Gate was constructed to restrict entrance in front of the Propylaea, thus returning the Acropolis to use as a fortress.

Byzantine, Latin, and Ottoman Period

During the Byzantine period, the Parthenon was used as a church dedicated to the Virgin Mary. During the Latin Duchy of Athens, the Acropolis functioned as the city's administrative center, with the Parthenon as its cathedral, and the Propylaea as part of the ducal palace. A large tower was added, the Frankopyrgos (Frankish Tower), demolished during the 19th century.

After the Ottoman conquest of Greece, the Propylaea were used as the garrison headquarters of the Turkish army, the Parthenon was converted into a mosque and the Erechtheum was turned into the governor's private harem. The buildings of the Acropolis suffered significant damage during the 1687 siege by the Venetians in the Morean War. The Parthenon, which was being used as a gunpowder magazine, was hit by artillery and damaged severely.

During subsequent years, the Acropolis was a site of bustling human activity with many Byzantine, Frankish, and Ottoman structures. The dominant feature during the Ottoman period was a mosque inside the Parthenon, complete with a minaret.

The Acropolis was besieged thrice during the Greek War of Independence—two sieges from the Greeks in 1821–1822 and one from the Ottomans in 1826–1827. A new bulwark named after Odysseas Androutsos was built by the Greeks between 1822 and 1825 to protect the recently rediscovered Klepsydra spring, which became the sole fresh water supply of the fortress.

Independent Greece
After independence, most features that dated from the Byzantine, Frankish, and Ottoman periods were cleared from the site in an attempt to restore the monument to its original form, "cleansed" of all later additions. The Parthenon mosque was demolished in 1843, and the Frankish Tower in 1875. German Neoclassicist architect Leo von Klenze was responsible for the restoration of the Acropolis in the 19th century, according to German historian Wolf Seidl, as described in his book Bavarians in Greece.

Some antiquities from the Acropolis were exhibited in the old Acropolis Museum, which was built in the second half of the 19th century.

At the beginning of the Axis occupation of Greece in 1941, German soldiers raised the Nazi German War Flag over the Acropolis. It would be taken down by Manolis Glezos and Apostolos Santas in one of the first acts of resistance. In 1944 Greek Prime Minister Georgios Papandreou arrived on the Acropolis to celebrate liberation from the Nazis.

Archaeological remains

The entrance to the Acropolis was a monumental gateway termed the Propylaea. To the south of the entrance is the tiny Temple of Athena Nike. At the centre of the Acropolis is the Parthenon or Temple of Athena Parthenos (Athena the Virgin). East of the entrance and north of the Parthenon is the temple known as the Erechtheum. South of the platform that forms the top of the Acropolis there are also the remains of the ancient, though often remodelled, Theatre of Dionysus. A few hundred metres away, there is the now partially reconstructed Odeon of Herodes Atticus.

All the valuable ancient artifacts are situated in the Acropolis Museum, which resides on the southern slope of the same rock, 280 metres from the Parthenon.

Site plan
Site plan of the Acropolis at Athens showing the major archaeological remains.

 * 1) Parthenon
 * 2) Old Temple of Athena
 * 3) Erechtheum
 * 4) Statue of Athena Promachos
 * 5) Propylaea
 * 6) Temple of Athena Nike
 * 7) Eleusinion
 * 8) Sanctuary of Artemis Brauronia or Brauroneion
 * 9) Chalkotheke
 * 10) Pandroseion
 * 11) Arrephorion
 * 12) Altar of Athena
 * 13) Sanctuary of Zeus Polieus
 * 14) Sanctuary of Pandion
 * 15) Odeon of Herodes Atticus
 * 16) Stoa of Eumenes
 * 17) Sanctuary of Asclepius or Asclepieion
 * 18) Theatre of Dionysus Eleuthereus
 * 19) Odeon of Pericles
 * 20) Temenos of Dionysus Eleuthereus
 * 21) Mycenaean fountain

The Acropolis Restoration Project

The Acropolis Restoration Project began in 1975 to reverse the decay of centuries of attrition, pollution, destruction from military actions, and misguided past restorations. The project included the collection and identification of all stone fragments, even small ones, from the Acropolis and its slopes, and the attempt was made to restore as much as possible using reassembled original material (anastylosis), with new marble from Mount Pentelicus used sparingly. All restoration was made using titanium dowels and is designed to be completely reversible, in case future experts decide to change things. A combination of cutting-edge modern technology and extensive research and reinvention of ancient techniques were used.

The Parthenon colonnades, largely destroyed by Venetian bombardment during the 17th century, were restored, with many wrongly assembled columns now properly placed. The roof and floor of the Propylaea were partly restored, with sections of the roof made of new marble and decorated with blue and gold inserts, as in the original. Restoration of the Temple of Athena Nike was completed in 2010.

A total of 2,675 tons of architectural members were restored, with 686 stones reassembled from fragments of the originals, 905 patched with new marble, and 186 parts made entirely of new marble. A total of 530 cubic meters of new Pentelic marble were used.

In 2021, the addition of new reinforced concrete paths to the site to improve accessibility caused controversy among archaeologists.

Cultural significance
Every four years, the Athenians had a festival called the Great Panathenaea that rivaled the Olympic Games in popularity. During the festival, a procession (believed to be depicted on the Parthenon frieze) traveled through the city via the Panathenaic Way and culminated on the Acropolis. There, a new robe of woven wool (peplos) was placed on either the statue of Athena Polias in the Erechtheum (during the annual Lesser Panathenaea) or the statue of Athena Parthenos in the Parthenon (during the Great Panathenaea, held every four years).

Within the later tradition of Western civilization and Classical revival, the Acropolis, from at least the mid-18th century on, has often been invoked as a critical symbol of the Greek legacy and of the glories of Classical Greece.

Most of the artifacts from the temple are housed today in the Acropolis Museum at the foot of the ancient rock.

Geology
The Acropolis is a klippe consisting of two lithostratigraphic units: the Athens schist and the overlying Acropolis limestone. The Athens schist is a soft reddish rock dating from the late Cretaceous period. The original sediments were deposited in a river delta approximately 72 million years ago. The Acropolis limestone dates from the late Jurassic period, predating the underlying Athens schist by about 30 million years. The Acropolis limestone was thrust over the Athens schist by compressional tectonic forces, forming a nappe or overthrust sheet. Erosion of the limestone nappe led to the eventual detachment of the Acropolis, forming the present-day feature. Where the Athens schist and the limestone meet there are springs and karstic caves.

Many of the hills in the Athens region were formed by the erosion of the same nappe as the Acropolis. These include the hills of Lykabettos, Areopagus, and Mouseion.

The marble used for the buildings of the Acropolis was sourced from the quarries of Mount Pentelicus, a mountain to the northeast of the city.

Geological instability
The limestone that the Acropolis is built upon is unstable because of the erosion and tectonic shifts that the region is prone to. This instability may cause rock slides that cause damage to the historic site. Various measures have been implemented to protect the site including retaining walls, drainage systems, and rock bolts. These measures work to counter the natural processes that threaten the historic site.

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title: Acropolis of Athens


text:
Adam Weishaupt

Johann Adam Weishaupt (6 February 1748 – 18 November 1830)   was a German philosopher, professor of civil law and later canon law, and founder of the Illuminati.

Early life
Adam Weishaupt was born on 6 February 1748 in Ingolstadt in the Electorate of Bavaria. Weishaupt's father Johann Georg Weishaupt (1717–1753) died when Adam was five years old. After his father's death he came under the tutelage of his godfather Johann Adam von Ickstatt who, like his father, was a professor of law at the University of Ingolstadt. Ickstatt was a proponent of the philosophy of Christian Wolff and of the Enlightenment, and he influenced the young Weishaupt with his rationalism. Weishaupt began his formal education at age seven at a Jesuit school. He later enrolled at the University of Ingolstadt and graduated in 1768 at age 20 with a doctorate of law. In 1772 he became a professor of law after conversion to Protestantism. The following year he married Afra Sausenhofer of Eichstätt.

After Pope Clement XIV's suppression of the Society of Jesus in 1773, Weishaupt became a professor of canon law, a position that was held exclusively by the Jesuits until that time. In 1775 Weishaupt was introduced to the empirical philosophy of Johann Georg Heinrich Feder of the University of Göttingen. Both Feder and Weishaupt would later become opponents of Kantian idealism.

Foundation of the Illuminati
"At a time, however, when there was no end of making game of and abusing secret societies, I planned to make use of this human foible for a real and worthy goal, for the benefit of people. I wished to do what the heads of the ecclesiastical and secular authorities ought to have done by virtue of their offices ..."

On 1 May 1776 Johann Adam Weishaupt founded the "Illuminati" in the Electorate of Bavaria. Initially, Illumination was designated for a group of outstanding and enlightened individuals in society. Indeed, the word was adapted from a Latin root, Iluminatus, which directly translates to "enlightened." He also adopted the name of "Brother Spartacus" within the order. Even encyclopedia references vary on the goal of the order, such as Catholic Encyclopedia (1910) saying the Order was not egalitarian or democratic internally, but sought to promote the doctrines of equality and freedom throughout society; while others such as Collier's have said the aim was to combat religion and foster rationalism in its place. The Illuminati was formed with the vision of liberating humans from religious bondage and undermining corrupted governments.

The actual character of the society was an elaborate network of spies and counter-spies. Each isolated cell of initiates reported to a superior, whom they did not know: a party structure that was effectively adopted by some later groups.

Weishaupt was initiated into the Masonic lodge "Theodor zum guten Rath", at Munich in 1777. His project of "illumination, enlightening the understanding by the sun of reason, which will dispel the clouds of superstition and of prejudice" was an unwelcome reform. He used Freemasonry to recruit for his own quasi-masonic society, with the goal of "perfecting human nature" through re-education to achieve a communal state with nature, freed of government and organized religion. Presenting their own system as pure masonry, Weishaupt and Adolph Freiherr Knigge, who organized his ritual structure, greatly expanded the secret organization.

Contrary to Immanuel Kant's famous dictum that Enlightenment (and Weishaupt's Order was in some respects an expression of the Enlightenment Movement) was the passage by a man out of his 'self-imposed immaturity' through daring to 'make use of his own reason, without the guidance of another,' Weishaupt's Order of Illuminati prescribed in great detail everything which the members had obediently to read and think so that Dr. Wolfgang Riedel has commented that this approach to illumination or enlightenment constituted a degradation and twisting of the Kantian principle of Enlightenment. Riedel writes:

 * ' The independence of thought and judgment required by Kant ... was specifically prevented by the Order of the Illuminati's rules and regulations. Enlightenment takes place here, if it takes place at all, precisely under the direction of another, namely under that of the "Superiors" [of the Order].

Weishaupt's radical rationalism and vocabulary were not likely to succeed. Writings that were intercepted in 1784 were interpreted as seditious, and the Society was banned by the government of Karl Theodor, Elector of Bavaria, in 1784. Weishaupt lost his position at the University of Ingolstadt and fled Bavaria.

Activities in exile
He received the assistance of Duke Ernest II of Saxe-Gotha-Altenburg (1745–1804), and lived in Gotha writing a series of works on illuminism, including A Complete History of the Persecutions of the Illuminati in Bavaria (1785), A Picture of Illuminism (1786), An Apology for the Illuminati (1786), and An Improved System of Illuminism (1787). Adam Weishaupt died in Gotha on 18 November 1830. He was survived by his second wife, Anna Maria (née Sausenhofer), and his children Nanette, Charlotte, Ernst, Karl, Eduard, and Alfred. His body was buried next to that of his son Wilhelm, who preceded him in death (in 1802), at Friedhof II der Sophiengemeinde Berlin, a Protestant cemetery.

After Weishaupt's Order of Illuminati was banned and its members dispersed, it left behind no enduring traces of influence, not even on its own erstwhile members, who went on to develop in quite different directions.

Assessment of character and intentions

Weishaupt's character and intentions have been variously assessed. Some took a negative view, such as Augustin Barruel, who despite writing that Weishaupt's goals were that "Equality and Liberty, together with the most absolute independence, are to be the substitutes for all rights and all property" saw this as more dangerous than beneficial, and John Robison, who regarded Weishaupt as a 'human devil' and saw his mission as one of malevolent destructiveness. Others took a more positive view, including Thomas Jefferson, who wrote in a letter to James Madison that "Barruel’s own parts of the book are perfectly the ravings of a Bedlamite" and considered Weishaupt to be an "enthusiastic Philanthropist" who believed in the indefinite perfectibility of man, and believed that the intention of Jesus Christ was simply to "reinstate natural religion, and by diffusing the light of his morality, to teach us to govern ourselves".

In his defence, Weishaupt wrote a Kurze Rechtfertigung meiner Absichten (A Brief Justification of my Intentions) in 1787. Author Tony Page comments:

 * "Weishaupt’s plan was to educate Illuminati followers in the highest levels of humanity and morality (basing his teachings on the supremacy of Reason, allied with the spirit of the Golden Rule of not doing to others what one would not wish done to oneself), so that if Illuminati alumni subsequently attained positions of significance and power (such as in the fields of education and politics), they could exert a benevolent and uplifting influence upon society at large. His project was utopian and naively optimistic, and he himself was certainly not without flaws of character – but neither he nor his plan was evil or violent in and of themselves. It is one of the deplorable and tragic ironies of history that a man who tried to inculcate virtue, philanthropy, social justice and morality has become one of the great hate-figures of 21st-century 'conspiracy' thinking."

Philosophical works

 * (1775) De Lapsu Academiarum Commentatio Politica.
 * (1786) Über die Schrecken des Todes – eine philosophische Rede.
 * Discours Philosophique sur les Frayeurs de la Mort (1788). Gallica
 * (1786) Über Materialismus und Idealismus. Torino
 * (1788) Geschichte der Vervollkommnung des menschlichen Geschlechts.
 * (1788) Über die Gründe und Gewißheit der Menschlichen Erkenntniß.
 * (1788) Über die Kantischen Anschauungen und Erscheinungen.
 * (1788) Zweifel über die Kantischen Begriffe von Zeit und Raum.
 * (1793) Über Wahrheit und sittliche Vollkommenheit.
 * (1794) Über die Lehre von den Gründen und Ursachen aller Dinge.
 * (1794) Über die Selbsterkenntnis, ihre Hindernisse und Vorteile.
 * (1797) Über die Zwecke oder Finalursachen.
 * (1802) Über die Hindernisse der baierischen Industrie und Bevölkerung.
 * (1804) Die Leuchte des Diogenes.
 * (1817) Über die Staats-Ausgaben und Auflagen. Google Books
 * (1818) Über das Besteuerungs-System.

Works relating to the Illuminati

 * (1786) Apologie der Illuminaten, ISBN 978-3-7448-1853-7.
 * (1786) Vollständige Geschichte der Verfolgung der Illuminaten in Bayern.
 * (1786) Schilderung der Illuminaten.
 * (1787) Einleitung zu meiner Apologie.
 * (1787) Einige Originalschriften des Illuminatenordens...
 * (1787) Nachtrage von weitern Originalschriften...
 * (1787) Kurze Rechtfertigung meiner Absichten.
 * (1787) Nachtrag zur Rechtfertigung meiner Absichten.
 * (1787) Apologie des Mißvergnügens und des Übels.
 * (1787) Das Verbesserte System der Illuminaten.
 * (1788) Der ächte Illuminat, oder die wahren, unverbesserten Rituale der Illuminaten.
 * (1795) Pythagoras, oder Betrachtungen über die geheime Welt- und Regierungs-Kunst.

Source

Works by Adam Weishaupt in English translation

 * (2008) Diogenes' Lamp, or an Examination of Our Present Day Morality and Enlightenment, translated by Amelia Gill, The Masonic Book Club. Internet Archive
 * (2015) The Secret School of Wisdom: The Authentic Rituals and Doctrines of the Illuminati, translated by Jeva Singh-Anand, edited by Josef Wäges and Reinhard Markner, London: Lewis Masonic, 447 pp., ISBN 978-0853184935

 * (2014) A Brief Justification of My Intentions: Casting Light on the Latest Original Writings, translated by Dr. Tony Page, Justice Publications, Amazon Kindle.

 * (2014) Supplement to the Justification of My Intentions, translated by Dr. Tony Page, Justice Publications, Amazon Kindle.

title: Adam Weishaupt