Arianism

Christological doctrine, attributed to Arius

32 dated entries naming Arianism, drawn from 31 separate years between 256 CE and 603 CE. Nothing here is written by us: each line is the sentence a Wikipedia year article used, and the link beside it opens the exact revision.

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3rd century

256Arius, Egyptian priest and founder of Arianism (d. 336)source

4th century

321A synod held in Alexandria condemns Arianism.source
339Eusebius of Nicomedia is made bishop of Constantinople, while another Arian succeeds Athanasius as bishop of Alexandria, under the name Gregory.source
343Pope Julius I tries to unite the Western bishops against Arianism by convoking the Council of Serdica, which acknowledges the pope's supreme authority and grants him the right to judge cases involving the legal possession of episcopal sees, but only Western and Egyptian bishops attend, and Arianism remains strong.source
346The Visigoths are converted to Arianism by Wulfila.source
347Council of Sardica: An attempt is made to resolve the Arian controversy, and ground rules for bishops are laid down.source
352May 17 – Pope Julius I dies after a 15-year reign in which he has made himself the chief opponent of Arianism. He is succeeded by Pope Liberius as the 36th pope, who immediately writes to Constantius II requesting a council at Aquileia to discuss the former Alexandrian patriarch Athanasius, who opposes the Arian belief to which the emperor subscribes.source
356Anthony the Great (pictured) dies at his hermitage near the Red Sea in mid-January at age 105 (approximate), having preached against Arianism, and having tried to codify guidelines for monastic life. His followers subsequently establish the Monastery of Saint Anthony, beginning the tradition of Coptic monasticism.source
357Late in the year Pope Liberius travels to Sirmium (Pannonia) and agrees to sign documents that effectively undo the Nicene Creed (which implicitly disavows Arianism) and to sever his relationship with the former Alexandrian patriarch Athanasius, who is replaced as patriarch of Alexandria by his Arian opponent George of Cappadocia.source
359July – Emperor Constantius II convenes the Council of Rimini, to resolve the crisis over Arianism in the Church. Some 400 bishops of the Western portion of the Roman Empire attend, while the Eastern bishops simultaneously hold a meeting at Seleucia. Given Saint Jerome's comment that, "The whole world groaned in astonishment to find itself Arian", it appears to have failed. Pope Liberius rejects the new creed at Rimini.source
361Emperor Julian tries to organize a pagan church and substitute it for Christianity. Pope Liberius repudiates the Arian creed, and declares that the Council of Ariminum has no authority to issue decrees.source
369Wulfila creates a Gothic alphabet composed of letters based on Greek and Roman letters, as well as some Germanic runes. He converts the Goths to Arian Christianity.source
373Emperor Valens is converted to Arianism, and orders the persecution of Trinitarian Christians in the Roman East.source
375Gratian, advised by his chief advisor Ambrosius, begins a systematic persecution of the pagans. He confiscates the fortunes of the temples and adds the money to the Imperial Treasury. He proscribes Arianism and Donatism.source
380February 27 – Edict of Thessalonica: Theodosius I, with co-emperors Gratian and Valentinian II, declare their wish that all Roman citizens convert to trinitarian Christianity, in accordance with the patriarchs of Rome and Alexandria, implicitly rejecting the Arianism of the patriarch of Constantinople as heretical.source
381First Council of Constantinople (some authorities date this council to 383): Theodosius I calls a general council to affirm and extend the Nicene Creed, and denounce Arianism and Apollinarism. Most trinitarian churches consider this an Ecumenical council.source
381Council of Aquileia: Ambrose and the council depose the Arian bishops Palladius of Ratiaria and Secundianus of Singidunum.source
383First Council of Constantinople (some authorities date this council to 381): Theodosius I calls a general council to affirm and extend the Nicene Creed, and denounce Arianism and Apollinarism. Most trinitarian Christian churches consider this an Ecumenical council.source
384Ambrosius refuses the request of Empress Justina for a church in Milan, where she can worship according to her Arian belief.source
393Eunomius of Cyzicus, Arian bishop and theologiansource

5th century

465King Remismund establishes a policy of friendship with the Visigoths, and promotes the conversion of the Suebi into Arianism in Galicia (Northern Spain).source
484February 24 – King Huneric passes the Edict of 484, a law banning Catholicism within the Vandal Kingdom. A few weeks later, King Huneric removes Catholic bishops from their offices and banishes some to Corsica. A few are martyred, including former proconsul Victorian along with Frumentius and other merchants. They are killed at Hadrumetum after refusing to become Arians.source

6th century

501Burgundian Civil War: King Gundobad breaks his promise of tribute and regains his military power. He besieges his brother Godegisel at the city of Vienne (Burgundy), and murders him in an Arian church along with the bishop.source
509Clovis I (Chlodowech) becomes the first Catholic king of the Franks, uniting all the Frankish tribes under his rule. He controls an immense territory in Gaul (modern France), and delivers a major blow for the Church against the Arian heresy.source
525King Theodoric the Great sends Pope John I to Constantinople, to negotiate a withdrawal of Byzantine emperor Justin's edict against Arian Christianity.source
526Pope John I returns to Ravenna from Constantinople. Theodoric the Great finds that he has been only partly successful in persuading the Byzantine emperor Justin I to withdraw his edict against Arian Christianity, and throws the pope into prison.source
530King Hilderic is deposed by his cousin Gelimer after a seven-year reign. Gelimer restores Arianism as the official religion of the Vandal Kingdom and puts Hilderic in prison along with other supporters.source
579Leander, Catholic bishop of Seville, is exiled by Liuvigild and withdraws to Constantinople. At the Byzantine court he composes works against Arianism (approximate date).source
580King Liuvigild calls for an Arian synod in Toledo (central Spain), which modifies several doctrines; he tries to unify the Christians within the Visigothic Kingdom.source
587King Reccared I renounces Arianism and adopts Catholicism. Many Visigothic nobles follow his example, but in Septimania (Southern Gaul) there are Arian uprisings.source
589The Third Council of Toledo, called by King Reccared I of the Visigoths, renounces Arianism and embraces Catholicism.source

7th century

603Agilulf, under the influence of his wife Theodelinda, abandons Arianism for Catholicism, and is (with his son Adaloald) baptised in the Cathedral of Monza, where later the Iron Crown of Lombardy is installed.source