Etymology.

"Antichrist" is translated from the combination of two ancient Greek words (anti + Christos). In Greek, means "anointed one" and the word Christ derives from it. "" means not only anti in the sense of "against" and "opposite of", but also "in place of". Therefore, an antichrist opposes Christ by substituting himself for Christ.

History.

New Testament.

Whether the New Testament contains an individual Antichrist is disputed. The Greek term "antikhristos" originates in 1 John. The similar term "pseudokhristos" ("False Messiah") is also first found in the New Testament, but never used by Josephus in his accounts of various false messiahs. The concept of an "antikhristos" is not found in Jewish writings in the period 500 BC–50 AD. However, Bernard McGinn conjectures that the concept may have been generated by the frustration of Jews subject to often-capricious Seleucid or Roman rule, who found the nebulous Jewish idea of a Satan who is more of an opposing angel of God in the heavenly court insufficiently humanised and personalised to be a satisfactory incarnation of evil and threat.  The five uses of the term "antichrist" or "antichrists" in the Johannine epistles do not clearly present a single latter-day individual Antichrist. The articles "the deceiver" or "the antichrist" are usually seen as marking out a certain category of persons, rather than an individual.  Consequently, attention for an individual Antichrist figure focuses on the second chapter of 2 Thessalonians. However, the term "antichrist" is never used in this passage:  Although the word "antichrist" (Greek "antikhristos") is used only in the Epistles of John, the similar word "pseudochrist" (Greek "pseudokhristos", meaning "false messiah") is used by Jesus in the Gospels:

Early Church.

The only one of the late 1st/early 2nd century Apostolic Fathers to use the term is Polycarp (c. 69 – c. 155) who warned the Philippians that everyone who preached false doctrine was an antichrist. His use of the term Antichrist follows that of the New Testament in not identifying a single personal Antichrist, but a class of people.  Irenaeus (2nd century AD – c. 202) wrote "Against Heresies" to refute the teachings of the Gnostics. In Book V of "Against Heresies" he addresses the figure of the Antichrist referring to him as the "recapitulation of apostasy and rebellion." He uses "666", the Number of the Beast from Revelation 13:18, to numerologically decode several possible names. Some names that he loosely proposed were "Evanthos", "Lateinos" ("Latin" or pertaining to the Roman Empire). In his exegesis of Daniel 7:21, he stated that the ten horns of the beast will be the Roman empire divided into ten kingdoms before the Antichrist's arrival. However, his readings of the Antichrist were more in broader theological terms rather than within a historical context.  The non-canonical Ascension of Isaiah presents a detailed exposition of the Antichrist as Belial and Nero.  Tertullian (c. 160 – c. 220 AD) held that the Roman Empire was the restraining force written about by Paul in 2 Thessalonians 2:7–8. The fall of the Western Roman Empire and the disintegration of the ten provinces of the Roman Empire into ten kingdoms were to make way for the Antichrist.  Hippolytus of Rome (c. 170 – c. 236) held that the Antichrist would come from the tribe of Dan and would rebuild the Jewish temple on the Temple Mount in order to reign from it. He identified the Antichrist with the Beast out of the Earth from the book of Revelation.  Origen (185–254) refuted Celsus' view of the Antichrist. Origen utilized Scriptural citations from Daniel, Paul, and the Gospels. He argued:

Post-Nicene Christianity.

Cyril of Jerusalem, in the mid-4th century, delivered his 15th Catechetical lecture about the Second Coming of Jesus Christ, in which he also lectures about the Antichrist, who will reign as the ruler of the world for three and a half years, before he is killed by Jesus Christ right at the end of his three-and-a-half-year reign, shortly after which the Second Coming of Jesus Christ will happen.  Athanasius of Alexandria (c. 298–373) wrote that Arius of Alexandria is to be associated with the Antichrist, saying, "And ever since [the Council of Nicaea] has Arius's error been reckoned for a heresy more than ordinary, being known as Christ's foe, and harbinger of Antichrist."  John Chrysostom (c. 347–407) warned against speculating about the Antichrist, saying, "Let us not therefore enquire into these things". He preached that by knowing Paul's description of the Antichrist in 2 Thessalonians, Christians would avoid deception.  Jerome (c. 347–420) warned that those substituting false interpretations for the actual meaning of Scripture belonged to the "synagogue of the Antichrist". "He that is not of Christ is of Antichrist", he wrote to Pope Damasus I. He believed that "the mystery of lawlessness" written about by Paul in 2 Thessalonians 2:7 was already in action when "every one chatters about his views." To Jerome, the power restraining this mystery of lawlessness was the Roman Empire, but as it fell this restraining force was removed. He warned a noble woman of Gaul:  In his "Commentary on Daniel", Jerome noted, "Let us not follow the opinion of some commentators and suppose him to be either the Devil or some demon, but rather, one of the human race, in whom Satan will wholly take up his residence in bodily form." Instead of rebuilding the Jewish Temple to reign from, Jerome thought the Antichrist sat in God's Temple inasmuch as he made "himself out to be like God." He refuted Porphyry's idea that the "little horn" mentioned in Daniel chapter 7 was Antiochus IV Epiphanes by noting that the "little horn" is defeated by an eternal, universal ruler, right before the final judgment. Instead, he advocated that the "little horn" was the Antichrist:  Circa 380, an apocalyptic pseudo-prophecy falsely attributed to the Tiburtine Sibyl describes Constantine as victorious over Gog and Magog. Later on, it predicts: Augustine of Hippo (354–430) wrote "it is uncertain in what temple [the Antichrist] shall sit, whether in that ruin of the temple which was built by Solomon, or in the Church."  Pope Gregory I wrote to the Byzantine Emperor Maurice in A.D. 597, concerning the titles of bishops, "I say with confidence that whoever calls or desires to call himself 'universal priest' in self-exaltation of himself is a precursor of the Antichrist."  By the end of the tenth century, Adso of Montier-en-Der, a Benedictine monk, compiled a biography of Antichrist based on a variety of exegetical and Sibylline sources; his account became one of the best-known descriptions of Antichrist in the Middle Ages.

Pre-Reformation Western Church accusers.

Arnulf, archbishop of Reims disagreed with the policies and morals of Pope John XV. He expressed his views while presiding over the Council of Reims in A.D. 991. Arnulf accused John XV of being the Antichrist while also using the 2 Thessalonians passage about the "man of lawlessness" (or "lawless one"), saying: "Surely, if he is empty of charity and filled with vain knowledge and lifted up, he is Antichrist sitting in God's temple and showing himself as God." This incident is history's earliest record of anyone identifying a pope with the Antichrist (see Christian Historicism).  Pope Gregory VII (c. 1015 or 1029 – 1085), struggled against, in his own words, "a robber of temples, a perjurer against the Holy Roman Church, notorious throughout the whole Roman world for the basest of crimes, namely, Wilbert, plunderer of the holy church of Ravenna, Antichrist, and arch-heretic."  Cardinal Benno, on the opposite side of the Investiture Controversy, wrote long descriptions of abuses committed by Gregory VII, including necromancy, torture of a former friend upon a bed of nails, commissioning an attempted assassination, executions without trials, unjust excommunication, doubting the Real presence of Christ in the Eucharist, and even burning it. Benno held that Gregory VII was "either a member of Antichrist, or Antichrist himself."  Eberhard II von Truchsees, Prince-Archbishop of Salzburg in 1241, denounced Pope Gregory IX at the Council of Regensburg as "that man of perdition, whom they call Antichrist, who in his extravagant boasting says, I am God, I cannot err." He argued that the ten kingdoms that the Antichrist is involved with were the "Turks, Greeks, Egyptians, Africans, Spaniards, French, English, Germans, Sicilians, and Italians who now occupy the provinces of Rome." He held that the papacy was the "little horn" of Daniel 7:8:

Protestant Reformation.

Protestant Reformers, including John Wycliffe, Martin Luther, John Calvin, Thomas Cranmer, John Thomas, John Knox, Roger Williams, Cotton Mather, and John Wesley, as well as most Protestants of the 16th-18th centuries, felt that the Early Church had been led into the Great Apostasy by the Papacy and identified the Pope with the Antichrist. Luther declared that not just a pope from time to time was Antichrist, but the Papacy was Antichrist because they were "the representatives of an institution opposed to Christ". The Centuriators of Magdeburg, a group of Lutheran scholars in Magdeburg headed by Matthias Flacius, wrote the 12-volume "Magdeburg Centuries" to discredit the Catholic Church and lead other Christians to recognize the Pope as the Antichrist. So, rather than expecting a single Antichrist to rule the earth during a future Tribulation period, Martin Luther, John Calvin, and other Protestant Reformers saw the Antichrist as a present feature in the world of their time, fulfilled in the Papacy.  Among the others who interpreted the biblical prophecy historically there were many Church Fathers; Justin Martyr wrote about the Antichrist: "He Whom Daniel foretells would have dominion for a time and times and an half, is even now at the door". Irenaeus wrote in "Against Heresies" about the coming of the Antichrist: "This Antichrist shall... devastate all things... But then, the Lord will come from Heaven on the clouds... for the righteous". Tertullian looking to the Antichrist wrote: "He is to sit in the temple of God, and boast himself as being god. In our view, he is Antichrist as taught us in both the ancient and the new prophecies; and especially by the Apostle John, who says that 'already many false-prophets are gone out into the world' as the fore-runners of Antichrist". Hippolytus of Rome in his "Treatise on Christ and Antichrist" wrote: "As Daniel also says (in the words) 'I considered the Beast, and look! There were ten horns behind it – among which shall rise another (horn), an offshoot, and shall pluck up by the roots the three (that were) before it.' And under this, was signified none other than Antichrist." Athanasius of Alexandria clearly hold to the historical view in his many writings; in "The Deposition of Arius", he wrote: "I addressed the letter to Arius and his fellows, exhorting them to renounce his impiety... There have gone forth in this diocese at this time certain lawless men – enemies of Christ – teaching an apostasy which one may justly suspect and designate as a forerunner of Antichrist". Jerome wrote: "Says the apostle [Paul in the Second Epistle to the Thessalonians], 'Unless the Roman Empire should first be desolated, and antichrist proceed, Christ will not come.'" He also identifies the Little horn of and which "He shall speak as if he were God."  Some Franciscans had considered the Emperor Frederick II a positive Antichrist who would purify the Catholic Church from opulence, riches and clergy.  Historicist interpretations of Book of Revelation usually included the identification of one or more of the following:  The Protestant Reformers tended to hold the belief that the Antichrist power would be revealed so that everyone would comprehend and recognize that the Pope is the real, true Antichrist and not the vicar of Christ. Doctrinal works of literature published by the Lutherans, the Reformed Churches, the Presbyterians, the Baptists, the Anabaptists, and the Methodists contain references to the Pope as the Antichrist, including the Smalcald Articles, Article 4 (1537), the "Treatise on the Power and Primacy of the Pope" written by Philip Melanchthon (1537), the Westminster Confession, Article 25.6 (1646), and the 1689 Baptist Confession of Faith, Article 26.4. In 1754, John Wesley published his "Explanatory Notes Upon the New Testament", which is currently an official Doctrinal Standard of the United Methodist Church. In his notes on the Book of Revelation (chapter 13), he commented: "The whole succession of Popes from Gregory VII are undoubtedly Antichrists. Yet this hinders not, but that the last Pope in this succession will be more eminently the Antichrist, the Man of Sin, adding to that of his predecessors a peculiar degree of wickedness from the bottomless pit."  The identification of the Pope with the Antichrist was so ingrained in the Reformation Era, that Luther himself stated it repeatedly:  John Calvin similarly wrote:  John Knox wrote on the Pope:  Thomas Cranmer on the Antichrist wrote:  John Wesley, speaking of the identity given in the Bible of the Antichrist, wrote:  Roger Williams wrote about the Pope:  The identification of the Roman Catholic Church as the apostate power written of in the Bible as the Antichrist became evident to many as the Reformation began, including John Wycliffe, who was well known throughout Europe for his opposition to the doctrine and practices of the Catholic Church, which he believed had clearly deviated from the original teachings of the early Church and to be contrary to the Bible. Wycliffe himself tells ("Sermones", III. 199) how he concluded that there was a great contrast between what the Church was and what it ought to be, and saw the necessity for reform. Along with John Hus, they had started the inclination toward ecclesiastical reforms of the Catholic Church.  When the Swiss Reformer Huldrych Zwingli became the pastor of the Grossmünster in Zurich (1518) he began to preach ideas on reforming the Catholic Church. Zwingli, who was a Catholic priest before he became a Reformer, often referred to the Pope as the Antichrist. He wrote: "I know that in it works the might and power of the Devil, that is, of the Antichrist".  The English Reformer William Tyndale held that while the Roman Catholic realms of that age were the empire of Antichrist, any religious organization that distorted the doctrine of the Old and New Testaments also showed the work of Antichrist. In his treatise "The Parable of the Wicked Mammon", he expressly rejected the established Church teaching that looked to the future for an Antichrist to rise up, and he taught that Antichrist is a present spiritual force that will be with us until the end of the age under different religious disguises from time to time. Tyndale's translation of 2 Thessalonians, chapter 2, concerning the "Man of Lawlessness" reflected his understanding, but was significantly amended by later revisers, including the King James Bible committee, which followed the Vulgate more closely.  In 1973, the United States Conference of Catholic Bishops' Committee on Ecumenical and Interreligious Affairs and the USA National Committee of the Lutheran World Federation in the official Catholic–Lutheran dialogue officially signed an agreement on "Papal Primacy and the Universal Church," including this passage:  In 1988 Ian Paisley, Evangelical minister and founder of the Free Presbyterian Church of Ulster, made headlines in an infamous manner by accusing Pope John Paul II as the Antichrist during one of the pope's speeches before the European Parliament, which at the time Paisley was member of. His accusation, and the reactions of both Pope John Paul II and other members of the European Parliament, was recorded on video.  The Wisconsin Evangelical Lutheran Synod states about the Pope and the Catholic Church: Currently, many Protestant and Restorationist denominations still officially maintain that the Papacy is the Antichrist, such as the conservative Lutheran Churches and the Seventh-day Adventists.

Counter Reformation.

In the Counter-Reformation, the views of Preterism and Futurism were advanced by Catholic Jesuits beginning in the 16th century in response to the identification of the Papacy as Antichrist. These were rival methods of prophetic interpretation: the futurist and the preterist systems both are in conflict with the historicist method of interpretation.  Historically, preterists and non-preterists have agreed that the Jesuit Luis de Alcasar (1554–1613) wrote the first systematic preterist exposition of prophecy—"Vestigatio arcani sensus in Apocalypsi" (published in 1614)—during the Counter-Reformation.

Christian views.

Roman Catholicism.

From the Fifth Council of the Lateran, the Catholic Church teaches that priests may not "preach or declare a fixed time for...the coming of antichrist..." The church also teaches that it must undergo trials before the Second Coming, and that the church's ultimate trial will be the mystery of iniquity. In Judaism, iniquity is a sin done out of moral failing. The mystery of iniquity, according to the church, will be a religious deception: Christians receiving alleged solutions to their problems at the cost of apostasy. The supreme religious deception, according to the church, will be the Antichrist's messianism: mankind glorifying himself rather than God and Jesus. The church teaches that this supreme deception is committed by people who claim to fulfill Israel's messianic hopes, such as millenarianism and secular messianicism.

Popes.

Pope Pius IX in the encyclical "Quartus Supra", quoting Cyprian, said Satan disguises the Antichrist with the title of Christ. Pope Pius X in the encyclical "E Supremi" said that the distinguishing mark of the Antichrist is claiming to be God and taking his place. Pope John Paul II, in his August 18, 1985 address on his apostolic journey to Africa, said 1 John 4:3 ("Every spirit which does not confess Jesus is not of God. This is the spirit of antichrist") evokes the danger of theology divorced from holiness and theological culture divorced from serving Christ. Pope Benedict XVI said in the Sunday Angelus of March 11, 2012 that violence is the tool of the Antichrist. In the General Audience of November 12, 2008, Benedict XVI said Christian tradition had come to identify the son of perdition as the Antichrist. Pope Francis, in his morning meditation of February 2, 2014, said that Christian faith is not an ideology, but that "the Apostle James says that ideologues of the faith are the Antichrist." In his morning meditation of September 19, 2014, Francis said the Antichrist must come before the final resurrection. In his morning meditation of January 7, 2016, he said the evil spirit spoken of in 1 John 4:6 is the Antichrist. In his morning meditation on November 11, 2016, Francis said whoever says the criteria of Christian love is not the Incarnation is the Antichrist.

Speculation.

The "Prophecy of the Popes" claims Rome will be destroyed during the pontificate of the last Pope, implying a connection to the Antichrist.  Fulton J. Sheen, a Catholic bishop, wrote in 1951:

Eastern Orthodox.

In a Christmas 2018 interview on Russian state television, Patriarch Kirill of Moscow warned that "The Antichrist is the person that will be at the head of the world wide web controlling all of humanity. That means that the structure itself poses a danger. There shouldn't be a single centre, at least not in the foreseeable future, if we don't want to bring on the apocalypse." He exhorted listeners not to "fall into slavery to what's in your hands"..."You should remain free inside and not fall under any addiction, not to alcohol, not to narcotics, not to gadgets."

Old Believers.

After Patriarch Nikon of Moscow reformed the Russian Orthodox Church during the second half of the 17th century, a large number of Old Believers held that Peter the Great, the Tsar of the Russian Empire until his death in 1725, was the Antichrist because of his treatment of the Orthodox Church, namely subordinating the church to the state, requiring clergymen to conform to the standards of all Russian civilians (shaved beards, being fluent in French), and requiring them to pay state taxes.

Age of Enlightenment.

Bernard McGinn noted that complete denial of the Antichrist was rare until the Age of Enlightenment. Following frequent use of "Antichrist" laden rhetoric during religious controversies in the 17th century, the use of the concept declined during the 18th century due to the rule of enlightened absolutists, who as European rulers of the time wielded significant influence over official state churches. These efforts to cleanse Christianity of "legendary" or "folk" accretions effectively removed the Antichrist from discussion in mainstream Western churches.

Mormonism.

In Mormonism, the "Antichrist" is anyone or anything that counterfeits the true gospel or plan of salvation and that openly or secretly is set up in opposition to Christ. The great antichrist is Lucifer, but he has many assistants both as spirit beings and as mortals." Latter-day Saints use the New Testament scriptures, 1 John 2:18, 22; 1 John 4:3–6; 2 John 1:7 and the Book of Mormon, Jacob 7:1–23, Alma 1:2–16, Alma 30:6–60, in their exegesis or interpretation of the Antichrist.

Seventh-day Adventists.

Seventh-day Adventists teach that the "Little Horn Power", which (as predicted in the Book of Daniel) rose after the break-up of the Roman Empire, is the Papacy. The Western Roman Empire collapsed in the late 5th century. In 533, Justinian I, the emperor of the Eastern Roman Empire (which historians have labelled the Byzantine Empire), legally recognized the bishop (pope) of Rome as the head of all the Christian churches. Because of the Arian domination of some of the Roman Empire by barbarian tribes, the bishop of Rome could not fully exercise such authority. In 538, Belisarius, one of Justinian's generals, succeeded in withstanding a siege of the city of Rome by Arian Ostrogoth besiegers, and the bishop of Rome could begin establishing universal civil authority. So, by the military intervention of the Eastern Roman Empire, the bishop of Rome became all-powerful throughout the area of the old Roman Empire. The Ostrogoths promptly re-captured the city of Rome eight years later in 546, and again in 550.  Seventh-day Adventists understand the 1260 years as lasting AD 538 to 1798 as the (supposed) duration of the papacy's domination over Rome. This period is seen as starting from one of the defeats of the Ostrogoths by the general Belisarius and as ending with the successes of French general Napoleon Bonaparte, specifically, with the capture of Pope Pius VI by general Louis Alexandre Berthier in 1798.  Like many Reformation-era Protestant leaders, the Adventist pioneer Ellen G. White (1827–1915) spoke of the Catholic Church as a fallen church in preparation for its nefarious eschatological role as the antagonist against God's true church; she saw the pope as the Antichrist. Protestant reformers such as Martin Luther, John Knox, William Tyndale and others held similar beliefs about the Catholic Church and the papacy when they broke away from the Catholic Church during the Reformation.  Ellen White writes, Seventh-day Adventists view the length of time the apostate church's unbridled power was permitted to rule as shown in Daniel 7:25: "The little horn would rule a time and times and half a time" - or 1,260 years. They regard papal rule as supreme in Europe from 538 (when the Arian Ostrogoths retreated from Rome into temporary oblivion) until 1798 (when the French general Louis-Alexandre Berthier took Pope Pius VI captive)—a period of 1,260 years - including the 67 years of the Avignon Captivity (1309-1376).

Other Christian interpretations.

Martin Wight.

Devout Christian and political theorist Martin Wight, writing immediately after World War Two, favoured the revival of the Antichrist doctrine; not as a person, but as a recurrent situation featuring 'demonic concentrations of power'.

As "man of lawlessness".

The Antichrist has been equated with the "man of lawlessness" or "lawless one" of 2 Thessalonians 2:3, though commentaries on the identity of the "man of lawlessness" greatly vary. The "man of lawlessness" has been identified with Caligula, Nero, and the end times Antichrist. Some scholars believe that the passage contains no genuine prediction, but represents a speculation of the apostle's own, based on contemporary ideas of the Antichrist.

As "being in league with other figures".

Several American evangelical and fundamentalist theologians, including Cyrus Scofield, have identified the Antichrist as being in league with (or the same as) several figures in the Book of Revelation including the Dragon (or Serpent), the Beast, the False Prophet, and the Whore of Babylon. Voices in the Emerging Church, such as Rob Bell, reject the identification of the Antichrist with any one person or group. They believe a loving Christ would not view anyone as an enemy.

As Satan.

Bernard McGinn described multiple traditions detailing the relationship between the Antichrist and Satan. In the dualist approach, Satan will become incarnate in the Antichrist, just as God became incarnate in Jesus. However, in Orthodox Christian thought, this view was problematic because it was too similar to Christ's incarnation. Instead, the "indwelling" view became more accepted. It stipulates that the Antichrist is a human figure inhabited by Satan, since the latter's power is not to be seen as equivalent to God's. Luca Signorelli's fresco, "The Sermon and Deeds of the Antichrist" (see above), depicts the indwelling view. Satan whispers in the ear of this Christlike figure and his left arm is slipped through the Antichrist's garment as if he is manipulating him. Similar to the whore of Babylon's clothing (Rev. 17:4), the Antichrist's robe is purple.

Non-Christian views.

Judaism.

There are warnings against false prophets in the Hebrew Bible, but no personal anti-Messiah figure.  A parodic anti-Messiah type figure known as Armilus, said to be the offspring of Satan and a virgin, appears in some non-legalistic, philosophical schools of Jewish eschatology, such as the 7th century CE Sefer Zerubbabel and 11th century CE Midrash Vayosha (also: ""Midrash wa-Yosha""). He is described as "a monstrosity, bald-headed, with one large and one small eye, deaf in the right ear and maimed in the right arm, while the left arm is two and one-half ells long." Being Gog's successor, his inevitable destruction by a "Messiah ben Joseph" (Messiah, son of Joseph (son of Jacob)), symbolizes the ultimate victory of good over evil in the Messianic Age. This is confronted with the medieval Christian Antichrist and Islamic Dajjal, who will conquer Jerusalem and persecute the Jews.

Islam.

"Al-Masih ad-Dajjal" (, literally "The Deceiving Messiah"), is an important figure in Islamic eschatology. Absent in the Quran, this figure is mentioned and described in the Hadith. Like in Christianity, the Dajjal is said to emerge out the east, the specific location varies among the sources. He will try to imitate the miracles performed by Jesus, such as healing the sick and raising the dead, the latter done with aid of demons ("Shayatin"). He will deceive many people, such as weavers, magicians, half-castes and children of prostitutes, but the majority of his followers will be Jews. Eventually the Dajjal will be killed by 'Isa (Jesus), who upon seeing the Dajjal will cause him to slowly dissolve (like salt in water). Jesus will eventually kill him at the gate of Ludd.

Ahmadiyya.

Prophecies concerning the emergence of the Antichrist ("Al-Masīḥ ad-Dajjāl") are interpreted in Ahmadiyya teachings as designating a specific group of nations centred upon a false theology (or Christology) instead of an individual, with the reference to the Antichrist as an individual indicating its unity as a class or system rather than its personal individuality. As such, Ahmadis identify the Antichrist collectively with the missionary expansion and colonial dominance of European Christianity throughout the world that was propelled by the Industrial Revolution. Mirza Ghulam Ahmad wrote extensively on this topic, identifying the Antichrist principally with colonial missionaries who, according to him, were to be countered through argumentation rather than by physical warfare and whose power and influence was to gradually disintegrate, ultimately allowing for the recognition and worship of God along Islamic ideals to prevail throughout the world in a period similar to the period of time it took for nascent Christianity to rise through the Roman Empire. The teaching that Jesus was a mortal man who survived crucifixion and died a natural death, as propounded by Ghulam Ahmad, has been seen by some scholars in this regard as a move to neutralise Christian soteriologies of Jesus and to project the superior rationality of Islam.

Baha'i.

The Antichrist is considered to subvert the religion of God from the inner reality of man as 'Abdu'l-Baha narrates: "Christ was a divine Center of unity and love. Whenever discord prevails instead of unity, wherever hatred and antagonism take the place of love and spiritual fellowship, Antichrist reigns instead of Christ."

In popular culture.

In February 1900, the Christian Russian philosopher and mystic Vladimir Solovyov published the apocalyptic "A Short Tale of the Antichrist", showing his prophetic vision about the oncoming 20th century and the end of the human history. It is prophesied that the antichrist will be a lawyer who will present himself to the whole humanity like a pacifist, ecologist and ecumenist, "will convoke an ecumenical council and will seek the consensus of all the Christian confessions, granting something to each one."

In Christian eschatology, the Antichrist, or anti-Christ, is a person prophesied by the Bible to oppose Christ and substitute himself in Christ's place before the Second Coming. The term (including one plural form) is found five times in the New Testament, solely in the First and Second Epistle of John. The Antichrist is announced as the one "who denies the Father and the Son."

L’Antéchrist (« avant le Christ ») ou Antichrist (« contre le Christ ») est une figure commune à l'eschatologie chrétienne et islamique, mais dans un sens différent. Elle apparaît dans les épîtres de Jean et dans la deuxième épître aux Thessaloniciens de Paul de Tarse sous des formes variables mais puise ses origines dans la notion d'« anti-messie » déjà présente dans le judaïsme.


Name.

The name 'Tara' is an anglicization of the Irish name "Teamhair" or "Cnoc na Teamhrach" ("hill of Tara"). It is also known as "Teamhair na Rí" ("Tara of the kings"), and formerly also "Liathdruim" ("the grey ridge"). The Old Irish form is "Temair". It is believed this comes from Proto-Celtic *"Temris" and means a "sanctuary" or "sacred space" cut off for ceremony, cognate with the Greek "temenos" and Latin "templum". Another suggestion is that it means "a height with a view".

Features.

Ancient monuments.

The remains of twenty ancient monuments are visible, and at least three times that many have been found through geophysical surveys and aerial photography.  The oldest visible monument is Dumha na nGiall (the Mound of the Hostages), a Neolithic passage tomb built around 3,200 BC. It holds the remains of hundreds of people, most of which are cremated bones. In the Neolithic it was the communal tomb of a single community for about a century, during which there were almost 300 burials. Almost a millennium later, in the Bronze Age, there were a further 33 burials – first in the passage and then in the mound around it. During this time, only certain high-status individuals were buried there. At first it was the tomb of one community, but later multiple communities came together to bury their elite there. The last burial was a full body burial of a young man of high status, with an ornate necklace and dagger.  During the late Neolithic or early Bronze Age, a huge double timber circle or "woodhenge" was built on the hilltop. It was 250m in diameter and surrounded the Mound of the Hostages. At least six smaller burial mounds were built in an arc around this timber circle, including those known as "Dall", "Dorcha", "Dumha na mBan-Amhus" (Mound of the Mercenary Women) and "Dumha na mBó" (Mound of the Cow). The timber circle was eventually either removed or decayed, and the burial mounds are barely visible today.  There are several large round enclosures on the hill, which were built in the Iron Age. The biggest and most central of these is Ráth na Ríogh (the Enclosure of the Kings), which measures in circumference, north-south by east-west, with an inner ditch and outer bank. It is dated to the 1st century BC and was originally marked out by a stakewall. Human burials, and a high concentration of horse and dog bones, were found in the ditch. Within the "Ráth na Ríogh" is the Mound of the Hostages and two round, double-ditched enclosures which together make a figure-of-eight shape. One is "Teach Chormaic" (Cormac's House) and the other is the "Forradh" or Royal Seat, which incorporates earlier burial mounds. On top of the "Forradh" is a standing stone, which is believed to be the "Lia Fáil" (Stone of Destiny) at which the High Kings were crowned. According to legend, the stone would let out a roar when the rightful king touched it. It is believed that the stone originally lay beside or on top of the Mound of the Hostages.  Just to the north of "Ráth na Ríogh", is Ráth na Seanadh (the Rath of the Synods), which was built in the middle of the former "woodhenge". It is a round enclosure with four rings of ditches and banks, and incorporates earlier burial mounds. It was re-modelled several times and once had a large timber building inside it, resembling the one at Navan. It was occupied between the 1st and 4th centuries AD, and Roman artifacts were also found there. It was badly mutilated in the early 20th century by British Israelites searching for the Ark of the Covenant.  The other round enclosures are Ráth Laoghaire (Laoghaire's Fort, where the eponymous king is said to have been buried) at the southern edge of the hill, and the Claonfhearta (Sloping Trenches or Sloping Graves) at the northwestern edge, which includes "Ráth Gráinne" and "Ráth Chaelchon". The "Claonfhearta" are burial mounds with ring ditches around them which sit on a slope.  At the northern end of the hill is Teach Miodhchuarta or Banqueting Hall. This was likely the ceremonial avenue leading to the hilltop and seems to have been one of the last monuments built.  Half a mile south of the Hill of Tara is another large round enclosure known as Rath Meave, which refers to the legendary figure Medb or Medb Lethderg.

Church.

A church, called Saint Patrick's, is on the eastern side of the hilltop. The "Rath of the Synods" has been partly destroyed by its churchyard. The modern church was built in 1822–23 on the site of an earlier one. The earliest evidence of a church at Tara is a charter dating from the 1190s. In 1212, this church was "among the possessions confirmed to the Knights Hospitallers of Saint John of Kilmainham by Pope Innocent III". A 1791 illustration shows the church building internally divided into a nave and chancel, with a bell-tower over the western end. A stump of wall marks the site of the old church today, but some of its stonework was re-used in the current church. The building is now used as a visitor centre operated by the Office of Public Works (OPW), an agency of the Irish Government.

Tara's significance.

The 11th-century "Lebor Gabála Érenn" (The Book of the Taking of Ireland) says that Tara was the seat of the high kings of Ireland from the far past until the time of writing. However, there is no evidence that the institution of high kingship conferred authority over the whole island.  The earliest written records say that high kings were inaugurated there, and the ""Senchas Már"" legal text (written some time after 600AD) specified that the king must drink ale and symbolically marry the goddess Maeve (Medb) as part of the ceremony. The last High King to observe the pagan inauguration ritual of marrying Medb, the goddess of the land, was Diarmait mac Cerbaill. He is also seen as the first High King in the Christian era.  The Mound of the Hostages has a passage aligned with the sunrise around the times of Imbolc (the Gaelic festival marking the start of spring) and Samhain (the festival marking the start of winter). The mound's passage is shorter than the long entryways of monuments like Newgrange, which makes it less precise in providing alignments with the Sun. Martin Brennan, in "The Stones of Time", states that the daily changes in the position of a 13-foot (4 m) long sunbeam are more than enough to determine specific dates.  In Irish mythology, Tara is said to have been the capital of the Tuatha Dé Danann, who are based on the gods of pagan Ireland. It says that when the Milesians (the first Gaels) arrived, Tara became the place from which the kings of Mide ruled Ireland. There is much debate among historians as to how far the King's influence spread. The high kingship of the whole island was only established to an effective degree by Máel Sechnaill mac Máele Ruanaid (Malachy I) in the 9th century. Irish pseudohistorians of the Middle Ages made it stretch back into prehistory. Atop the hill stands a stone pillar believed to be the "Lia Fáil" (Stone of Destiny) on which the High Kings were crowned; legends suggest that the stone would roar three times if the chosen one was the rightful king (compare with the Scottish Stone of Scone).  During the rebellion of 1798, United Irishmen formed a camp on the hill but were attacked and defeated by British troops on 26 May 1798 and the "Lia Fáil" was allegedly moved to commemorate the 400 rebels who died on the hill that day. In 1843, the Irish nationalist leader Daniel O'Connell hosted a peaceful political demonstration at Tara in favour of Irish self-governance which drew over 750,000 people, highlighting the lasting importance of Tara.  At the turn of the 20th century, the Tara was vandalised by British Israelists who thought that the British were part of the Lost Tribes of Israel and that the hill contained the Ark of the Covenant. A group of British Israelists, led by retired Anglo-Indian judge Edward Wheeler Bird, set about excavating the site having paid off the landowner, Gustavus Villiers Briscoe. Irish cultural nationalists held a mass protest over the destruction of the national heritage site, including Douglas Hyde, Arthur Griffith, Maud Gonne, George Moore and William Butler Yeats. Hyde tried to interrupt the dig but was ordered away by a man wielding a rifle. Maud Gonne made a more flamboyant protest by relighting an old bonfire that Briscoe had lit to celebrate the coronation of Edward VII. She began to sing Thomas Davis's song "A Nation Once Again" by the fire, much to the consternation of the landlord and the police.  British Prime Minister John Russell inherited the Tara estate during the 19th century. The Irish government bought the southern part of the hill in 1952, and the northern part in 1972.  The religious order Missionary Society of St. Columban had its international headquarters at Dalgan Park, just north of the Hill of Tara. The order was named after the Saint who was born in the Ancient Kingdom of Meath. The land Dalgan Park lies on was once owned by the kings of Tara. The Seminary is also situated on the path of the Slighe Midluachra, one the five ancient roads that meet at tara. The Opus Dei also have its National institute sited at Lismullen next to Tara.  The present day Opus Dei Lismullen institute is located on what used to be known as the Gabhra Valley. According to Irish Mythology during the third century AD a great battle known as the Cath Gabhra took place between the then High King Cairbre Lifechair son of Cormac Mac Airt and the Fianna lead by Fionn Mac Cumhaill. The Fianna were heavily defeated, many of the graves of the Fianna covered the Rath of the Gabhra, most notably the grave of Oscar, son of Oisín.

The Five Roads of Tara.

According to legend, five ancient roads or "slighe" meet at Tara, linking it with all the provinces of Ireland. The earliest reference to the five roads of Tara was in the tale "Togail Bruidne Da Derga" (The Destruction of Da Derga's Hall).  The five roads are said to be:

Motorway development.

The M3 motorway which opened in June 2010, passes through the Tara-Skryne Valley – as did the existing N3 road. Protesters argue that since the Tara Discovery Programme started in 1992, there is an appreciation that the Hill of Tara is just the central complex of a wider landscape. The distance between the motorway and the hill is – it intersects the old N3 at the Blundelstown interchange between the Hill of Tara and the Hill of Skryne. Protesters said that an alternative route about west of Tara would have been straighter, cheaper and less destructive. On Sunday 23 September 2007 over 1500 people met on the Hill of Tara to take part in a human sculpture representing a harp and spelling out the words "SAVE TARA VALLEY" as a call for the re-routing of the M3 motorway away from Tara. Actors Stuart Townsend and Jonathan Rhys Meyers attended this event. There was also a letter writing campaign to preserve the Hill of Tara.  The Hill of Tara was included in the World Monuments Fund's 2008 Watch List of the 100 Most Endangered Sites in the world. The following year it was included in a list of the 15 must-see endangered cultural treasures by the Smithsonian Institution.

The Hill of Tara ( or "Cnoc na Teamhrach") is a hill and ancient ceremonial and burial site near Skryne in County Meath, Ireland. According to tradition, it was the inauguration place and seat of the High Kings of Ireland, and it also appears in Irish mythology. Tara consists of numerous monuments and earthworks—from the Neolithic to the Iron Age—including a passage tomb (the "Mound of the Hostages"), burial mounds, round enclosures, a standing stone (believed to be the "Lia Fáil" or "Stone of Destiny"), and a ceremonial avenue. There is also a church and graveyard on the hill. Tara is part of a larger ancient landscape and Tara itself is a protected national monument under the care of The Office of Public Works, an agency of the Irish Government.

Tara est un site archéologique d'Irlande dans le comté de Meath. Dans la mythologie celtique irlandaise, Tara est la capitale mythique de l'Irlande, située dans la cinquième province de Mide, dans le centre du pays : c'est la « colline des rois » ().


Terminology.

Definition.

The definition of muscle car is subjective and frequently debated. Muscle cars often have many of the following characteristics:  High-power pony cars are sometimes considered muscle cars, however personal luxury cars are often too expensive to be considered muscle cars. Sports cars and sports sedans are not usually considered muscle cars, since they are generally associated with circuit racing rather than drag racing. Muscle cars are an extension of the hot rodding philosophy of taking a small car and putting a large-displacement engine in it, for the purpose of increased straight-line speed.

Supercars.

Muscle cars were originally referred to as "Supercars" in the United States, often (though not always) spelled with a capital S." From the mid-1960s to the mid-1970s, "dragstrip bred" mid-size cars were equipped with large, powerful V8 engines and rear-wheel drive were referred to as Supercars more often than muscle cars. An early example is the 1957 Rambler Rebel, which was described as a "potent mill turned the lightweight Rambler into a veritable supercar."  In 1966, the supercar became an official industry trend" as the four domestic automakers "needed to cash in on the supercar market" with eye-catching, heart-stopping cars. Examples of the use of the supercar description for the early muscle models include the May 1965 "Car Life" road test of the Pontiac GTO along with how "Hurst puts American Motors into the Supercar club with the 390 Rogue" (the SC/Rambler) to fight in "the Supercar street racer gang" market segment, with the initials "SC" signifying SuperCar.  The supercar market segment in the U.S. at the time included special versions of regular production models that were positioned in several sizes and market segments (such as the "economy supercar"), as well as limited edition, documented dealer-converted vehicles. However, the supercar term by that time "had been diluted and branded with a meaning that did not respect the unique qualities of the'muscle car'."

History.

1950s: Origins.

Opinions on the origin of the muscle car vary, but the 1949 Oldsmobile Rocket 88, is cited as the first full-sized muscle car. The Rocket 88 was the first time a powerful V8 engine was available in a smaller and lighter body style (in this case the engine from the larger Oldsmobile 98 with the body from the six-cylinder Oldsmobile 76). The Rocket 88 produced at 3600 rpm and at 1800 rpm and won eight out of ten races in the 1950 NASCAR season. The Rocket 88's Oldsmobile 303 V8 engine (along with the Cadillac 331 engine, also introduced in 1949) are stated to have "launched the modern era of the high-performance V-8."  In 1955, the large sized Chrysler C-300 was introduced that produced from its V8 engine, and it was advertised as "America's Most Powerful Car". Capable of accelerating from 0 to in 9.8 seconds and reaching, the 1955 Chrysler 300 is also recognized as one of the best-handling cars of its era.  The compact-sized 1956 Studebaker Golden Hawk was powered by a Packard V8, the second most powerful engine to the Chrysler 300.  The Rambler Rebel, introduced by American Motors Corporation (AMC) in 1957, is the first mid-sized car to be available with a big-block V8 engine. The Rebel followed most of the muscle car formula including "make 'em go fast as well as cheaply." It is therefore considered by some to be the first muscle car. With a V8 engine producing, its 0–60 mph acceleration of 7.5 seconds made it the fastest stock American sedan at the time. Only the fuel-injected Chevrolet Corvette beat it by half a second.

Early 1960s: Drag racing influences.

The popularity and performance of muscle cars grew in the early 1960s, as Mopar (Dodge, Plymouth, and Chrysler) and Ford battled for supremacy in drag racing. The 1961 Chevrolet Impala offered an SS package for $53.80, which consisted of a V8 engine producing and upgraded brakes, tires and suspension. The 1962 Dodge Dart 413 (nicknamed Max Wedge) had a V8 which produced and could cover the quarter mile in under 13 seconds. In 1963, two hundred Ford Galaxie "R-code" cars were factory built specifically for drag racing, resulting in a full-size car which could cover the quarter mile in a little over 12 seconds. Upgrades included fiberglass panels, aluminum bumpers, traction bars and a racing engine conservatively rated at. The road legal version of the Galaxie 427 used the "Q-code" engine which produced. The following year, Ford installed 427 engine in the smaller and lighter Fairlane body, creating the Ford Thunderbolt. The Thunderbolt included several weight-saving measures (including acrylic windows and fibreglass/aluminium body panels and bumpers) and a stock Thunderbolt could cover the quarter-mile in 11.76 seconds. The Thunderbolt was technically road legal, however it was considered unsuitable for "for driving to and from the (drag)strip, let alone on the street in everyday use". A total of 111 Thunderbolts were built.  The General Motors competitor to the Thunderbolt was the Z-11 option package for the full-size Chevrolet Impala coupe, of which 57 examples were produced in 1963 only. The Z-11 Impala was powered by a version of the W-series big-block engine, which was officially rated at. With a compression ratio of 13.5:1, the engine required high-octane fuel. The RPOZ-11 package also included weight reduction measures such as an aluminum hood and fenders, the removal of sound-deadening material and the deletion of the heater and radio.  In 1964, a drag racing version of the Dodge 330 was created, called the "330 Lightweight". It was powered by a version of the which was official rated at but rumoured to have an actual power output higher than this. Weight reduction measures included an aluminium hood, lightweight front bumpers, fenders and doors, Lexan side windows and no sound deadening. Like other lightweights of the era, it came with a factory disclaimer: "Designed for supervised acceleration trials. Not recommended for general everyday driving because of the compromises in the all-round characteristics which must be made for this type of vehicle."  Also using the 426 Hemi racing engine was the limited production 1965 Plymouth Satellite 426 Hemi. In 1966, the racing version of the 426 Hemi was replaced by a detuned "Street Hemi" version, also with a size of 426 cu in and an official power rating of ). The 1966 Plymouth Satellite 426 Hemi could run a 13.8-second quarter mile at and had a base price of $3,850.

1964–1970: Peak muscle car era.

The Pontiac GTO, a car often considered to have strongly influenced the muscle car era, was introduced in 1964 as an optional package for the intermediate-size Pontiac Tempest. The GTO was developed by Pontiac division president John DeLorean and was initially powered by a V8 engine producing. The success of the GTO led other GM divisions to develop muscle cars based on intermediate-sized platforms: the 1964 Oldsmobile 442, 1964 Chevrolet Chevelle SS and 1965 Buick Gran Sport.  The AMC V8 engine was enlarged to in 1968, which produced and was first used in the 1968 AMC Rebel SST, AMC Javelin Go-package and AMC AMX.  A key appeal of muscle cars was that they offered the American car culture relatively affordable and powerful street performance in models. But as size, optional equipment and luxury appointments increased, engines had to be more powerful to maintain performance levels, and the cars became more expensive. As a response to this rising cost and weight, some "budget" muscle cars began to appear, such as the 1967 Plymouth GTX, the 1968 Plymouth Road Runner and the 1968 Dodge Super Bee.  The Plymouth Barracuda was one of the first muscle cars to be based on the smaller compact car body size. The Barracuda was based on the Plymouth Valiant and from 1968 was available with a V8 engine producing. It could run a quarter mile in 13.33 seconds at on the drag strip. The base price was $2,796.00; the price as tested by "Hot Rod" was $3,652. The related 1970 Plymouth Duster was powered by a V8 engine producing. Performance figures were 0 to in 6.0 seconds and the quarter mile time of in 14.7 seconds at.  Although muscle cars sold in relatively small volumes, manufacturers valued the halo effect of the publicity created by these models. Competition between manufacturers led to a horsepower war that peaked in 1970, with some models advertising as much as.  The Chevrolet L72 big-block engine became available in the mid-sized Chevrolet Chevelle in 1969 as the COPO 427 option. The 427 Chevelle could run a 13.3 sec. quarter-mile at. Chevrolet rated the engine at, but the NHRA claimed power output to be. The following year, the "Chevelle SS 454" model was introduced, which used the Chevrolet LS6 big-block engine rated at, the highest factory rating at that time.  In 1969, the Plymouth Road Runner was awarded "Motor Trend" magazine's Car of the Year. With optional performance parts such as intake and exhaust manifolds, upgraded carburetor, and drag-racing tires, the Road Runner had a quarter mile time of 14.7 quarter at. In this customized form, the cost of the Road Runner was US$3,893.  The fastest muscle car produced by American Motors was the mid-sized 1970 AMC Rebel "The Machine", which was powered by a engine producing. The Rebel had a 0– time of 6.8 seconds and a quarter mile in 14.4 seconds at.

1970s Decline of the segment.

The popularity of muscle cars declined through the early 1970s, due to factors including the Clean Air Act, the fuel crisis and increasing insurance costs. The 1973 oil crisis resulted in rationing of fuel and higher prices. Muscle cars quickly became unaffordable and impractical for many people. In addition, the automobile insurance industry levied surcharges on all high-powered models.  Prior to Clean Air Act of 1970, a majority of muscle cars came optioned with high-compression engines (some engines were as high as 11:1), which required high-octane fuel. Prior to the oil embargo, 100-octane fuel was common. However, following the passage of the Clean Air Act of 1970, octane ratings were lowered to 91 (due in part to the removal of lead). Manufacturers were forced to reduce the compression ratio of engines, resulting in reduced performance. Simultaneously, efforts to combat air pollution focused Detroit's attention on emissions control rather than increased power outputs.

1980s–1990s: Performance revival.

Muscle car performance began a resurgence in the early 1980s with high output V8 engines introduced for the Ford Mustang GT, Chevrolet Camaro Z28 and Pontiac Firebird Formula/Trans Am. Initially using four-barrel carburetors, engine performance and fuel economy was increased by the mid-1980s using electronic fuel injection systems and advanced engine management controls. Muscle car performance began to reappear on intermediate two-door coupés such as the Chevrolet Monte Carlo SS and Buick Regal. The Buick Regal used turbocharged V6 engines on the Grand National, Turbo-T, T-Type, and GNX models which rivaled the performance of V8 engines.  The few muscle cars remaining in production by the mid-1990s included the Ford Mustang, Chevrolet Camaro, and Pontiac Firebird.

2000s to present.

For 2004, the Pontiac GTO was relaunched in the United States as a rebadged captive import version of the Holden Monaro. For 2005, Chrysler introduced muscle car heritage to high performance V8 powered versions of four-door sedans, the Dodge Charger and Chrysler 300C, using nameplates traditionally used for two-door muscle cars. For 2005, the fifth-generation Ford Mustang, designed to resemble the original first-generation Mustang, brought back the aggressive lines and colors of the original. For 2006, GM relaunched the Chevrolet Monte Carlo SS with a V8 the first V8 on the Monte Carlo in 15 Years, with the same V8 engine used on the Monte Carlo's W-Body sister cars like the Pontiac Grand Prix GXP, Buick Lacrosse Super, and the Chevrolet Impala SS.  For 2008, Chrysler re-introduced the Dodge Challenger, which features styling links to the 1970 first-generation Challenger and was claimed by the Chrysler CEO to be "a modern take on one of the most iconic muscle cars". A year later, running on that same sentiment, Chevrolet released the 2009 Camaro, which bears some resemblance to the 1969 first-generation Camaro.

Australia.

The first Australian-designed car to be marketed as a performance model was the 1963 Holden EH S4 model, of which 120 road cars were produced so that the model could be eligible to compete at the 1963 Armstrong 500 motor race at Bathurst. The EH S4 was powered by an upgraded version of the standard six-cylinder engine, enlarged to and producing. In 1964, the Ford Falcon (XM) became available with an enlarged "Super Pursuit" version of the standard six-cylinder engine, which produced.  In 1965, the Chrysler Valiant AP6 became the first Australian car to be available with a V8 engine. This optional engine was the version of the Chrysler LA engine, which produced and was imported from the United States. The first Australian-designed Ford to be available with a V8 was the 1966 Ford Falcon (XR), with a version of the Ford Windsor engine (imported from the United States), which produced. The first Holden to be available with a V8 was the 1968 Holden HK, with a version of the Chevrolet small-block V8 (imported from the United States) which produced. Later that year, a version of the engine became available in the Holden HK Monaro GTS 327 coupe.  The pinnacle of 1970s Australian muscle cars were the 1971–1972 Ford Falcon GTHO, Holden Monaro 350 and Chrysler Valiant Charger R/T (the smaller Holden Torana GTR was also a successful performance car of the era, but it is not considered a muscle car due to its prioritisation of light weight over outright power). The Ford Falcon (XY) GTHO Phase III model was powered by a version of the Ford Cleveland V8 engine, officially rated at, but estimated to produce between. The Holden HQ Monaro GTS 350 was powered by a version of the Chevrolet small-block V8 producing. The Chrysler Valiant Charger R/T E49 model was powered by a version of the Chrysler Hemi-6 six-cylinder engine producing.  In 1972, production of Australian muscle cars came to an abrupt halt when the Supercar scare caused Ford, Holden and Chrysler to cease development of upcoming performance models, due to government pressure. The few Australian muscle car models produced after 1972 consist of the limited production 1977–1978 Holden Torana (LX) A9X option and the 1978–1979 Ford Falcon (XC) Cobra model, both created as homologation models for Group C touring car racing.

List of muscle cars 1960s to 80s.

Significant American muscle cars :

Muscle car is an American term for high-performance coupes, usually but not limited to rear-wheel drive and fitted with a high-displacement V8 engine. General Motors introduced the first proper muscle car in 1949. The term originated for 1960s and early 1970s special editions of mass-production cars which were designed for drag racing.

Muscle car (littéralement « voiture muscle ») est un terme anglophone servant à désigner des automobiles américaines (ou australiennes avec la marque Holden) propulsées par un moteur surdimensionné, le plus souvent un V8. Si les premières automobiles de grande puissance sont nées dans les années 1950, l'histoire officielle désigne généralement sous l'appellation de « "muscle car" » des modèles datant pour la plupart de la décennie suivante.


Poland.

Ulam was born in Lemberg, Galicia, on 3 April 1909. At this time, Galicia was in the Kingdom of Galicia and Lodomeria of the Austro-Hungarian Empire, known to Poles as the Austrian partition. In 1918, it became part of the newly restored Poland, the Second Polish Republic, and the city took its Polish name again, Lwów.  The Ulams were a wealthy Polish Jewish family of bankers, industrialists, and other professionals. Ulam's immediate family was "well-to-do but hardly rich". His father, Józef Ulam, was born in Lwów and was a lawyer, and his mother, Anna (née Auerbach), was born in Stryj. His uncle, Michał Ulam, was an architect, building contractor, and lumber industrialist. From 1916 until 1918, Józef's family lived temporarily in Vienna. After they returned, Lwów became the epicenter of the Polish–Ukrainian War, during which the city experienced a Ukrainian siege. In 1919, Ulam entered Lwów Gymnasium Nr. VII, from which he graduated in 1927. He then studied mathematics at the Lwów Polytechnic Institute. Under the supervision of Kazimierz Kuratowski, he received his Master of Arts degree in 1932, and became a Doctor of Science in 1933. At the age of 20, in 1929, he published his first paper "Concerning Function of Sets" in the journal "Fundamenta Mathematicae". From 1931 until 1935, he traveled to and studied in Wilno (Vilnius), Vienna, Zurich, Paris, and Cambridge, England, where he met G. H. Hardy and Subrahmanyan Chandrasekhar.  Along with Stanisław Mazur, Mark Kac, Włodzimierz Stożek, Kuratowski, and others, Ulam was a member of the Lwów School of Mathematics. Its founders were Hugo Steinhaus and Stefan Banach, who were professors at the Jan Kazimierz University. Mathematicians of this "school" met for long hours at the Scottish Café, where the problems they discussed were collected in the Scottish Book, a thick notebook provided by Banach's wife. Ulam was a major contributor to the book. Of the 193 problems recorded between 1935 and 1941, he contributed 40 problems as a single author, another 11 with Banach and Mazur, and an additional 15 with others. In 1957, he received from Steinhaus a copy of the book, which had survived the war, and translated it into English. In 1981, Ulam's friend R. Daniel Maudlin published an expanded and annotated version.

Coming to the US.

In 1935, John von Neumann, whom Ulam had met in Warsaw, invited him to come to the Institute for Advanced Study in Princeton, New Jersey, for a few months. In December of that year, Ulam sailed to the US. At Princeton, he went to lectures and seminars, where he heard Oswald Veblen, James Alexander, and Albert Einstein. During a tea party at von Neumann's house, he encountered G. D. Birkhoff, who suggested that he apply for a position with the Harvard Society of Fellows. Following up on Birkhoff's suggestion, Ulam spent summers in Poland and academic years at Harvard University in Cambridge, Massachusetts from 1936 to 1939, where he worked with John C. Oxtoby to establish results regarding ergodic theory. These appeared in Annals of Mathematics in 1941.  On 20 August 1939, in Gdynia, Józef Ulam, along with his brother Szymon, put his two sons, Stanislaw and 17 year old Adam, on a ship headed for the US. Eleven days later, the. Within two months, the Germans completed their occupation of western Poland, and the Soviets and occupied eastern Poland. Within two years, Józef Ulam and the rest of his family were victims of the Holocaust, Hugo Steinhaus was in hiding, Kazimierz Kuratowski was lecturing at the underground university in Warsaw, Włodzimierz Stożek and his two sons had been killed in the massacre of Lwów professors, and the last problem had been recorded in the Scottish Book. Stefan Banach survived the Nazi occupation by feeding lice at Rudolf Weigl's typhus research institute. In 1963, Adam Ulam, who had become an eminent kremlinologist at Harvard, received a letter from George Volsky, who hid in Józef Ulam's house after deserting from the Polish army. This reminiscence gave a chilling account of Lwów's chaotic scenes in late 1939. In later life Ulam described himself as "an agnostic. Sometimes I muse deeply on the forces that are for me invisible. When I am almost close to the idea of God, I feel immediately estranged by the horrors of this world, which he seems to tolerate".  In 1940, after being recommended by Birkhoff, Ulam became an assistant professor at the University of Wisconsin–Madison. Here, he became a United States citizen in 1941. That year, he married Françoise Aron. She had been a French exchange student at Mount Holyoke College, whom he met in Cambridge. They had one daughter, Claire. In Madison, Ulam met his friend and colleague C. J. Everett, with whom he would collaborate on a number of papers.

Manhattan Project.

In early 1943, Ulam asked von Neumann to find him a war job. In October, he received an invitation to join an unidentified project near Santa Fe, New Mexico. The letter was signed by Hans Bethe, who had been appointed as leader of the theoretical division of Los Alamos National Laboratory by Robert Oppenheimer, its scientific director. Knowing nothing of the area, he borrowed a New Mexico guide book. On the checkout card, he found the names of his Wisconsin colleagues, Joan Hinton, David Frisch, and Joseph McKibben, all of whom had mysteriously disappeared. This was Ulam's introduction to the Manhattan Project, which was the US's wartime effort to create the atomic bomb.

Hydrodynamical calculations of implosion.

A few weeks after Ulam reached Los Alamos in February 1944, the project experienced a crisis. In April, Emilio Segrè discovered that plutonium made in reactors would not work in a gun-type plutonium weapon like the "Thin Man", which was being developed in parallel with a uranium weapon, the "Little Boy" that was dropped on Hiroshima. This problem threatened to waste an enormous investment in new reactors at the Hanford site and to make slow separation of uranium isotopes the only way to prepare fissile material suitable for use in bombs. To respond, Oppenheimer implemented, in August, a sweeping reorganization of the laboratory to focus on development of an implosion-type weapon and appointed George Kistiakowsky head of the implosion department. He was a professor at Harvard and an expert on precise use of explosives.  The basic concept of implosion is to use chemical explosives to crush a chunk of fissile material into a critical mass, where neutron multiplication leads to a nuclear chain reaction, releasing a large amount of energy. Cylindrical implosive configurations had been studied by Seth Neddermeyer, but von Neumann, who had experience with shaped charges used in armor-piercing ammunition, was a vocal advocate of spherical implosion driven by explosive lenses. He realized that the symmetry and speed with which implosion compressed the plutonium were critical issues, and enlisted Ulam to help design lens configurations that would provide nearly spherical implosion. Within an implosion, because of enormous pressures and high temperatures, solid materials behave much like fluids. This meant that hydrodynamical calculations were needed to predict and minimize asymmetries that would spoil a nuclear detonation. Of these calculations, Ulam said:  Nevertheless, with the primitive facilities available at the time, Ulam and von Neumann did carry out numerical computations that led to a satisfactory design. This motivated their advocacy of a powerful computational capability at Los Alamos, which began during the war years, continued through the cold war, and still exists. Otto Frisch remembered Ulam as "a brilliant Polish topologist with a charming French wife. At once he told me that he was a pure mathematician who had sunk so low that his latest paper actually contained numbers with decimal points!"

Statistics of branching and multiplicative processes.

Even the inherent statistical fluctuations of neutron multiplication within a chain reaction have implications with regard to implosion speed and symmetry. In November 1944, David Hawkins and Ulam addressed this problem in a report entitled "Theory of Multiplicative Processes". This report, which invokes probability-generating functions, is also an early entry in the extensive literature on statistics of branching and multiplicative processes. In 1948, its scope was extended by Ulam and Everett.  Early in the Manhattan project, Enrico Fermi's attention was focused on the use of reactors to produce plutonium. In September 1944, he arrived at Los Alamos, shortly after breathing life into the first Hanford reactor, which had been poisoned by a xenon isotope. Soon after Fermi's arrival, Teller's "Super" bomb group, of which Ulam was a part, was transferred to a new division headed by Fermi. Fermi and Ulam formed a relationship that became very fruitful after the war.

Post war Los Alamos.

In September 1945, Ulam left Los Alamos to become an associate professor at the University of Southern California in Los Angeles. In January 1946, he suffered an acute attack of encephalitis, which put his life in danger, but which was alleviated by emergency brain surgery. During his recuperation, many friends visited, including Nicholas Metropolis from Los Alamos and the famous mathematician Paul Erdős, who remarked: "Stan, you are just like before." This was encouraging, because Ulam was concerned about the state of his mental faculties, for he had lost the ability to speak during the crisis. Another friend, Gian-Carlo Rota, asserted in a 1987 article that the attack changed Ulam's personality: afterwards, he turned from rigorous pure mathematics to more speculative conjectures concerning the application of mathematics to physics and biology; Rota also cites Ulam's former collaborator Paul Stein as noting that Ulam was sloppier in his clothing afterwards, and John Oxtoby as noting that Ulam before the encephalitis could work for hours on end doing calculations, while when Rota worked with him, was reluctant to solve even a quadratic equation. This assertion was not accepted by Françoise Aron Ulam.  By late April 1946, Ulam had recovered enough to attend a secret conference at Los Alamos to discuss thermonuclear weapons. Those in attendance included Ulam, von Neumann, Metropolis, Teller, Stan Frankel, and others. Throughout his participation in the Manhattan Project, Teller's efforts had been directed toward the development of a "super" weapon based on nuclear fusion, rather than toward development of a practical fission bomb. After extensive discussion, the participants reached a consensus that his ideas were worthy of further exploration. A few weeks later, Ulam received an offer of a position at Los Alamos from Metropolis and Robert D. Richtmyer, the new head of its theoretical division, at a higher salary, and the Ulams returned to Los Alamos.

Monte Carlo method.

Late in the war, under the sponsorship of von Neumann, Frankel and Metropolis began to carry out calculations on the first general-purpose electronic computer, the ENIAC at the Aberdeen Proving Ground in Maryland. Shortly after returning to Los Alamos, Ulam participated in a review of results from these calculations. Earlier, while playing solitaire during his recovery from surgery, Ulam had thought about playing hundreds of games to estimate statistically the probability of a successful outcome. With ENIAC in mind, he realized that the availability of computers made such statistical methods very practical. John von Neumann immediately saw the significance of this insight. In March 1947 he proposed a statistical approach to the problem of neutron diffusion in fissionable material. Because Ulam had often mentioned his uncle, Michał Ulam, "who just had to go to Monte Carlo" to gamble, Metropolis dubbed the statistical approach "The Monte Carlo method". Metropolis and Ulam published the first unclassified paper on the Monte Carlo method in 1949.  Fermi, learning of Ulam's breakthrough, devised an analog computer known as the Monte Carlo trolley, later dubbed the FERMIAC. The device performed a mechanical simulation of random diffusion of neutrons. As computers improved in speed and programmability, these methods became more useful. In particular, many Monte Carlo calculations carried out on modern massively parallel supercomputers are embarrassingly parallel applications, whose results can be very accurate.

Teller–Ulam design.

On 29 August 1949, the Soviet Union tested its first fission bomb, the RDS-1. Created under the supervision of Lavrentiy Beria, who sought to duplicate the US effort, this weapon was nearly identical to Fat Man, for its design was based on information provided by spies Klaus Fuchs, Theodore Hall, and David Greenglass. In response, on 31 January 1950, President Harry S. Truman announced a crash program to develop a fusion bomb.  To advocate an aggressive development program, Ernest Lawrence and Luis Alvarez came to Los Alamos, where they conferred with Norris Bradbury, the laboratory director, and with George Gamow, Edward Teller, and Ulam. Soon, these three became members of a short-lived committee appointed by Bradbury to study the problem, with Teller as chairman. At this time, research on the use of a fission weapon to create a fusion reaction had been ongoing since 1942, but the design was still essentially the one originally proposed by Teller. His concept was to put tritium and/or deuterium in close proximity to a fission bomb, with the hope that the heat and intense flux of neutrons released when the bomb exploded, would ignite a self-sustaining fusion reaction. Reactions of these isotopes of hydrogen are of interest because the energy per unit mass of fuel released by their fusion is much larger than that from fission of heavy nuclei. Because the results of calculations based on Teller's concept were discouraging, many scientists believed it could not lead to a successful weapon, while others had moral and economic grounds for not proceeding. Consequently, several senior people of the Manhattan Project opposed development, including Bethe and Oppenheimer. To clarify the situation, Ulam and von Neumann resolved to do new calculations to determine whether Teller's approach was feasible. To carry out these studies, von Neumann decided to use electronic computers: ENIAC at Aberdeen, a new computer, MANIAC, at Princeton, and its twin, which was under construction at Los Alamos. Ulam enlisted Everett to follow a completely different approach, one guided by physical intuition. Françoise Ulam was one of a cadre of women "computers" who carried out laborious and extensive computations of thermonuclear scenarios on mechanical calculators, supplemented and confirmed by Everett's slide rule. Ulam and Fermi collaborated on further analysis of these scenarios. The results showed that, in workable configurations, a thermonuclear reaction would not ignite, and if ignited, it would not be self-sustaining. Ulam had used his expertise in combinatorics to analyze the chain reaction in deuterium, which was much more complicated than the ones in uranium and plutonium, and he concluded that no self-sustaining chain reaction would take place at the (low) densities that Teller was considering. In late 1950, these conclusions were confirmed by von Neumann's results.  In January 1951, Ulam had another idea: to channel the mechanical shock of a nuclear explosion so as to compress the fusion fuel. On the recommendation of his wife, Ulam discussed this idea with Bradbury and Mark before he told Teller about it. Almost immediately, Teller saw its merit, but noted that soft X-rays from the fission bomb would compress the thermonuclear fuel more strongly than mechanical shock and suggested ways to enhance this effect. On 9 March 1951, Teller and Ulam submitted a joint report describing these innovations. A few weeks later, Teller suggested placing a fissile rod or cylinder at the center of the fusion fuel. The detonation of this "spark plug" would help to initiate and enhance the fusion reaction. The design based on these ideas, called staged radiation implosion, has become the standard way to build thermonuclear weapons. It is often described as the "Teller–Ulam design". In September 1951, after a series of differences with Bradbury and other scientists, Teller resigned from Los Alamos, and returned to the University of Chicago. At about the same time, Ulam went on leave as a visiting professor at Harvard for a semester. Although Teller and Ulam submitted a joint report on their design and jointly applied for a patent on it, they soon became involved in a dispute over who deserved credit. After the war, Bethe returned to Cornell University, but he was deeply involved in the development of thermonuclear weapons as a consultant. In 1954, he wrote an article on the history of the H-bomb, which presents his opinion that both men contributed very significantly to the breakthrough. This balanced view is shared by others who were involved, including Mark and Fermi, but Teller persistently attempted to downplay Ulam's role. "After the H-bomb was made," Bethe recalled, "reporters started to call Teller the father of the H-bomb. For the sake of history, I think it is more precise to say that Ulam is the father, because he provided the seed, and Teller is the mother, because he remained with the child. As for me, I guess I am the midwife."  With the basic fusion reactions confirmed, and with a feasible design in hand, there was nothing to prevent Los Alamos from testing a thermonuclear device. On 1 November 1952, the first thermonuclear explosion occurred when Ivy Mike was detonated on Enewetak Atoll, within the US Pacific Proving Grounds. This device, which used liquid deuterium as its fusion fuel, was immense and utterly unusable as a weapon. Nevertheless, its success validated the Teller–Ulam design, and stimulated intensive development of practical weapons.

Fermi–Pasta–Ulam–Tsingou problem.

When Ulam returned to Los Alamos, his attention turned away from weapon design and toward the use of computers to investigate problems in physics and mathematics. With John Pasta, who helped Metropolis to bring MANIAC on line in March 1952, he explored these ideas in a report "Heuristic Studies in Problems of Mathematical Physics on High Speed Computing Machines", which was submitted on 9 June 1953. It treated several problems that cannot be addressed within the framework of traditional analytic methods: billowing of fluids, rotational motion in gravitating systems, magnetic lines of force, and hydrodynamic instabilities.  Soon, Pasta and Ulam became experienced with electronic computation on MANIAC, and by this time, Enrico Fermi had settled into a routine of spending academic years at the University of Chicago and summers at Los Alamos. During these summer visits, Pasta, Ulam, and Mary Tsingou, a programmer in the MANIAC group, joined him to study a variation of the classic problem of a string of masses held together by springs that exert forces linearly proportional to their displacement from equilibrium. Fermi proposed to add to this force a nonlinear component, which could be chosen to be proportional to either the square or cube of the displacement, or to a more complicated "broken linear" function. This addition is the key element of the Fermi–Pasta–Ulam–Tsingou problem, which is often designated by the abbreviation FPUT.  A classical spring system can be described in terms of vibrational modes, which are analogous to the harmonics that occur on a stretched violin string. If the system starts in a particular mode, vibrations in other modes do not develop. With the nonlinear component, Fermi expected energy in one mode to transfer gradually to other modes, and eventually, to be distributed equally among all modes. This is roughly what began to happen shortly after the system was initialized with all its energy in the lowest mode, but much later, essentially all the energy periodically reappeared in the lowest mode. This behavior is very different from the expected equipartition of energy. It remained mysterious until 1965, when Kruskal and Zabusky showed that, after appropriate mathematical transformations, the system can be described by the Korteweg–de Vries equation, which is the prototype of nonlinear partial differential equations that have soliton solutions. This means that FPUT behavior can be understood in terms of solitons.

Nuclear propulsion.

Starting in 1955, Ulam and Frederick Reines considered nuclear propulsion of aircraft and rockets. This is an attractive possibility, because the nuclear energy per unit mass of fuel is a million times greater than that available from chemicals. From 1955 to 1972, their ideas were pursued during Project Rover, which explored the use of nuclear reactors to power rockets. In response to a question by Senator John O. Pastore at a congressional committee hearing on "Outer Space Propulsion by Nuclear Energy", on January 22, 1958, Ulam replied that "the future as a whole of mankind is to some extent involved inexorably now with going outside the globe."  Ulam and C. J. Everett also proposed, in contrast to Rover's continuous heating of rocket exhaust, to harness small nuclear explosions for propulsion. Project Orion was a study of this idea. It began in 1958 and ended in 1965, after the Partial Nuclear Test Ban Treaty of 1963 banned nuclear weapons tests in the atmosphere and in space. Work on this project was spearheaded by physicist Freeman Dyson, who commented on the decision to end Orion in his article, "Death of a Project".  Bradbury appointed Ulam and John H. Manley as research advisors to the laboratory director in 1957. These newly created positions were on the same administrative level as division leaders, and Ulam held his until he retired from Los Alamos. In this capacity, he was able to influence and guide programs in many divisions: theoretical, physics, chemistry, metallurgy, weapons, health, Rover, and others.  In addition to these activities, Ulam continued to publish technical reports and research papers. One of these introduced the Fermi–Ulam model, an extension of Fermi's theory of the acceleration of cosmic rays. Another, with Paul Stein and Mary Tsingou, titled "Quadratic Transformations", was an early investigation of chaos theory and is considered the first published use of the phrase "chaotic behavior".

Return to academia.

During his years at Los Alamos, Ulam was a visiting professor at Harvard from 1951 to 1952, MIT from 1956 to 1957, the University of California, San Diego, in 1963, and the University of Colorado at Boulder from 1961 to 1962 and 1965 to 1967. In 1967, the last of these positions became permanent, when Ulam was appointed as professor and Chairman of the Department of Mathematics at Boulder, Colorado. He kept a residence in Santa Fe, New Mexico, which made it convenient to spend summers at Los Alamos as a consultant.  In Colorado, where he rejoined his friends Gamow, Richtmyer, and Hawkins, Ulam's research interests turned toward biology. In 1968, recognizing this emphasis, the University of Colorado School of Medicine appointed Ulam as Professor of Biomathematics, and he held this position until his death. With his Los Alamos colleague Robert Schrandt he published a report, "Some Elementary Attempts at Numerical Modeling of Problems Concerning Rates of Evolutionary Processes", which applied his earlier ideas on branching processes to biological inheritance. Another, report, with William Beyer, Temple F. Smith, and M. L. Stein, titled "Metrics in Biology", introduced new ideas about biometric distances.  When he retired from Colorado in 1975, Ulam had begun to spend winter semesters at the University of Florida, where he was a graduate research professor. Except for sabbaticals at the University of California, Davis from 1982 to 1983, and at Rockefeller University from 1980 to 1984, this pattern of spending summers in Colorado and Los Alamos and winters in Florida continued until Ulam died of an apparent heart attack in Santa Fe on 13 May 1984. Paul Erdős noted that "he died suddenly of heart failure, without fear or pain, while he could still prove and conjecture." In 1987, Françoise Ulam deposited his papers with the American Philosophical Society Library in Philadelphia. She continued to live in Santa Fe until she died on 30 April 2011, at the age of 93. Both Françoise and her husband are buried with her French family in Montparnasse Cemetery in Paris.

Challenge to economics.

Alfred Marshall and his disciples dominated economic theory until the end of WW 2. With the Cold War, the theory changed emphasizing that market economy was superior and the only sensible way. In Paul Samuelson ́s “Economics: An Introductory Analysis ”, 1948, Adam Smith ́s “invisible hand” was only a footnote. In later editions, it became the central theme.  As Samuelson remembers all this was challenged by Stanislaw Ulam: “[Y]ears ago... I was in the Society of Fellows at Harvard along with the mathematician Stanislaw Ulam. Ulam, who was to become an originator of the Monte Carlo method and co-discoverer of the hydrogen-bomb,... used to tease me by saying, ‘Name me one proposition in all of the social sciences which is both true and non-trivial.’ This was the test that I always failed. But now, some thirty years later... an appropriate answer occurs to me: The Ricardian theory of comparative advantage.... That it is logically true need not be argued before a mathematician; that it is not trivial is attested by the thousands of important and intelligent men who have never been able to grasp the doctrine for themselves or to believe it after it was explained to them."

Impact and legacy.

From the publication of his first paper as a student in 1929 until his death, Ulam was constantly writing on mathematics. The list of Ulam's publications includes more than 150 papers. Topics represented by a significant number of papers are: set theory (including measurable cardinals and abstract measures), topology, transformation theory, ergodic theory, group theory, projective algebra, number theory, combinatorics, and graph theory. In March 2009, the Mathematical Reviews database contained 697 papers with the name "Ulam".  Notable results of this work are:  With his pivotal role in the development of thermonuclear weapons, Stanislaw Ulam changed the world. According to Françoise Ulam: "Stan would reassure me that, barring accidents, the H-bomb rendered nuclear war impossible." In 1980, Ulam and his wife appeared in the television documentary "The Day After Trinity". The Monte Carlo method has become a ubiquitous and standard approach to computation, and the method has been applied to a vast number of scientific problems. In addition to problems in physics and mathematics, the method has been applied to finance, social science, environmental risk assessment, linguistics, radiation therapy, and sports.  The Fermi–Pasta–Ulam–Tsingou problem is credited not only as "the birth of experimental mathematics", but also as inspiration for the vast field of Nonlinear Science. In his Lilienfeld Prize lecture, David K. Campbell noted this relationship and described how FPUT gave rise to ideas in chaos, solitons, and dynamical systems. In 1980, Donald Kerr, laboratory director at Los Alamos, with the strong support of Ulam and Mark Kac, founded the Center for Nonlinear Studies (CNLS). In 1985, CNLS initiated the "Stanislaw M. Ulam Distinguished Scholar" program, which provides an annual award that enables a noted scientist to spend a year carrying out research at Los Alamos.  The fiftieth anniversary of the original FPUT paper was the subject of the March 2005 issue of the journal Chaos, and the topic of the 25th Annual International Conference of CNLS. The University of Southern Mississippi and the University of Florida supported the "Ulam Quarterly", which was active from 1992 to 1996, and which was one of the first online mathematical journals. Florida's Department of Mathematics has sponsored, since 1998, the annual "Ulam Colloquium Lecture", and in March 2009, the "Ulam Centennial Conference".  Ulam's work on non-Euclidean distance metrics in the context of molecular biology made a significant contribution to sequence analysis and his contributions in theoretical biology are considered watersheds in the development of cellular automata theory, population biology, pattern recognition, and biometrics generally (David Sankoff, however, challenged conclusions of Walter by writing that Ulam had only modest influence on early development of sequence alignment methods.). Colleagues noted that some of his greatest contributions were in clearly identifying problems to be solved and general techniques for solving them.  In 1987, Los Alamos issued a special issue of its "Science" publication, which summarized his accomplishments, and which appeared, in 1989, as the book "From Cardinals to Chaos". Similarly, in 1990, the University of California Press issued a compilation of mathematical reports by Ulam and his Los Alamos collaborators: "Analogies Between Analogies". During his career, Ulam was awarded honorary degrees by the Universities of New Mexico, Wisconsin, and Pittsburgh.

Stanisław Marcin Ulam (; 3 April 1909 – 13 May 1984) was a Polish scientist in the fields of mathematics and nuclear physics. He participated in the Manhattan Project, originated the Teller–Ulam design of thermonuclear weapons, discovered the concept of the cellular automaton, invented the Monte Carlo method of computation, and suggested nuclear pulse propulsion. In pure and applied mathematics, he proved some theorems and proposed several conjectures.

Stanisław Marcin Ulam ( - ) est un mathématicien américain d'origine juive polonaise. Il aida à développer la théorie qui permit la bombe à hydrogène.


Requirements.

In order to develop an effective emergency warning system, certain things are required:

United Nations program.

Early warning system is the term that the International Early Warning Programme coordinated by the United Nations uses for all systems that are used to send emergency population warnings.  The United Nations Development Programme uses the Send Word Now Emergency Notification System to alert its worldwide staff when an urgent situation arises.

Methods by country.

Australia.

The Standard Emergency Warning Signal was originally adopted by the Bureau of Meteorology in the 1970s for tropical cyclone warnings. It became a standard national emergency warning signal in 1995. It can be broadcast on radio, television, automated telephone calls and in some places by public address systems in the event of bushfire, flood, cyclone, tsunami, earthquake or terrorist attack.

Canada.

On June 11, 2009, the Canadian Radio-television and Telecommunications Commission (CRTC) approved a proposal by Pelmorex, owners of The Weather Network and MétéoMédia, to receive must-carry status for the channels, in exchange for developing a "national aggregator and distributor" of localized emergency alert messages compliant with the Common Alerting Protocol. The alert system, known as Alert Ready, built on a backend known as the National Alert Aggregation and Dissemination system (NAAD), was first established in 2010, and further expanded as a result of consultation with government officials, broadcasters, and the CRTC. In August 2014, the CRTC ruled that all television stations, radio stations, and broadcast distribution undertakings had to begin mandatory carriage of local alerts relayed through NAAD by March 31, 2015.  The province of Alberta had its own system called the Emergency Public Warning System (EPWS). The EPWS was put into place after a major tornado swept through the city of Edmonton in 1987, killing 27 and causing millions of dollars in damage. Unlike the American EAS, however, broadcast of the EPWS was not mandatory on radio and television stations. It was broadcast on the CKUA Radio Network and was televised on CTV Two Alberta and other participating stations. EPWS warnings could be initiated by municipal police and fire departments, the provincial government, county authorities, tribal government agencies, Environment Canada, and the Royal Canadian Mounted Police. CKUA developed and maintained the EPWS until January 2010, when it lost a bid to modernize the system to an outside vendor (the contract had provided 15% of the station's overall budget).  In June 2011, an updated version of the system known as Alberta Emergency Alert was introduced, which emphasized multi-platform availability of alerts and advisories on digital platforms, such as online and through a mobile app. Participation in AEA is now considered mandatory under the CRTC's national public alerting mandate.

France.

In France, the population warning is made via air raid siren. This network is called the "Réseau national d'alerte" (RNA). The system is inherited from the air-raid siren network ("défense passive") developed before World War II. It consists of about 4,500 electronic or electromechanical sirens placed all over France.  In some cases, the warning signal may be played by a mobile system installed on the fire department's vehicles.  The warning signal is described by "décret" (by law) of March 23, 2007. It consists in a modulated sound going up and down (up to 380 Hz) during the first minute, and repeated three times. The end of alert is a continuous signal lasting 30 seconds.  The system is tested every month, the first Wednesday at 11.45 in the north, 12.00 in the center, and at 12.15 in the south; for tests, the modulated signal is played only once.  When the warning signal sounds, people are expected to remain at home or the building they are in and listen to further instructions on radio via France Info, France Inter, or local stations.  Instructions may also be announced by police or fire department vehicles.

Japan.

The J-Alert system launched in 2007 aims to allow government officials to address the population directly via loudspeakers. It aims to cover earthquake, tsunami, volcano, and military emergencies.  The Earthquake Early Warning system is operated by the Japan Meteorological Agency. It is capable of delivering warnings a few seconds before S-waves can propagate to distant locations. Warnings are broadcast by radio and television stations, and compatible equipment can automatically turn on when receiving a message. EEW capability is also required for all domestic cell phones sold after 2007.  JMA also issues advisories regarding tropical cyclones in the western Pacific Ocean.

South America.

Many countries in South America have a mechanism called ""cadena nacional"" (). It enables the leader of the country to address the people simultaneously on all TV channels and radio stations, interrupting normal programming. In some countries, such as Argentina and Venezuela, the broadcast of these messages is obligatory. Many of these systems were created by past military governments, and political use of the mechanism is common.

United States.

The bulk of emergency warnings in the United States are sent through the Emergency Alert System, implemented in 1997. The EAS can be activated by national, state, regional, or local authorities, including police, fire, weather, and other governmental authorities. EAS is often activated when an unpredicted emergency such as a tornado, earthquake, or release of toxic gas happens. The vast majority of EAS alerts are generated by the National Weather Service.  The Integrated Public Alert and Warning System (IPAWS) program of the U.S. Federal Emergency Management Agency is an attempt to integrate multiple public warning technologies into a coordinated nationwide "system of systems" using the Common Alerting Protocol. Systems targeted for inclusion in IPAWS include the Emergency Alert System, the Commercial Mobile Alert System using cellular telephones and other wireless devices and the NOAA Weather Radio network.  Many states use existing air raid sirens to warn of tornadoes and flash floods. People living near certain nuclear facilities such as the Hanford Site in Washington have special radios in their home that are set to broadcast a warning signal in the event of a radiological emergency. Some emergencies (AMBER Alerts, for instance) are also sent out via e-mail, cellphone text message, and highway signs. Many U.S. institutions of higher education now use multiple warning technologies on their campuses, including outdoor and indoor sirens, public address systems, email and cell phone text messaging, and digital displays.  Prior to the adoption of the Emergency Alert System, the US used CONELRAD from 1951-1963 and the Emergency Broadcast System from 1963-1997.

An emergency population warning is a method whereby local, regional, or national authorities can contact members of the public en masse to warn them of an impending emergency. These warnings may be necessary for a number of reasons, including:

L'alerte aux populations est l'action de prévenir les populations de l'arrivée d'un danger afin que celles-ci puissent s'en protéger. Son but est de minimiser le nombre de victimes.