After the East-West Schism, conventionally dated to 1054, a brief reunification was agreed to between the Pope and a number of Eastern Orthodox bishops at the Council of Florence.

And while he was not present at any of the councils he continued to hold this title until the East-West Schism of 1054 AD.

The Filioque has been an ongoing source of conflict between the East and West, contributing, in part, to the East-West Schism of 1054 and proving an obstacle to attempts to reunify the two sides.

Over the centuries, disagreements separated Western Christianity from the various forms of Eastern Christianity: first from East Syrian Christianity after the Council of Ephesus ( 431 ), then from that of Oriental Orthodoxy after the Council of Chalcedon ( 451 ), and then from Eastern Orthodoxy with the East-West Schism of 1054.

She thereafter exerted much influence in restoring Nicene Christianity ( the mainstream, later split in 1054 by the East-West Schism in Roman Catholicism and Eastern Orthodoxy ) to a position of primacy in Italy against its rival, Arian Christianity.

From the fall of the Roman Empire in 5th century to the East-West Schism in 1054, the influence of Greek science declined, although spontaneous generation generally went unchallenged.

The East-West Schism of 1054 split the Latin-speaking see of Rome from the four Greek-speaking patriarchates, forming distinct Roman Catholic and Eastern Orthodox Churches.

Before the East-West Schism in 1054, the Christian Church within the borders of the ancient Roman Empire was effectively ruled by five patriarchs ( the " Pentarchy "): the Bishop of Rome ( who rarely used the title " Patriarch ") and those of Constantinople, Jerusalem, Alexandria, and Antioch.

The tensions led in 1054 to a serious rupture between the Greek East and Latin West called the East-West schism, which while not in many places absolute, still dominates the ecclesiastical landscape.

The Golden Legend and many of its sources developed after the East-West Schism of 1054, and thus is unknown in the Greek-or Syriac-speaking worlds.

This jurisdictional claim was one of the main causes of the East-West Schism in the Christian church, which became formal in 1054.

However, a number of other historians ( Leon Petrović, Jaroslav Šidak, Dragoljub Dragojlović, Dubravko Lovrenović, and Noel Malcolm ) stressed theologically the impeccably orthodox character of Bosnian Christian writings and claimed that for the explanation of this phenomenon suffices the relative isolation of Bosnian Christianity, which retained many archaic traits predating the East-West Schism in 1054.

These creeds were the Apostles ' Creed, Nicene Creed, and Athanasian Creed, which were formulated before the East-West Schism of 1054, but the Nicene Creed is the western version containing the filioque.

Though normally dated to 1054, when Pope Leo IX and Patriarch of Constantinople Michael I Cerularius excommunicated each other, the East-West Schism was actually the result of an extended period of estrangement between the two Churches.

It would take until 1054 for the Latin ( Catholic ) Church and the Eastern ( Orthodox Church ) to split ( East-West Schism ), and then until the Reformation in the 16th century to split the Latin ( Catholic ) Church, before one could see all the factions that exist today in the old city.

The East-West Schism of 1054 was one of the reasons for this.

At that time, the nature of the East-West Schism, normally dated to 1054, was undefined, and many of those who continued to worship and work within the Melkite Church became identified as a pro-Western party.

Paleo-orthodoxy sees the essentials of Christian theology in the consensus of the old church before the schism between the Orthodox Church and the Roman-Catholic Church ( the East-West Schism of 1054 ) and before the separation of Protestantism from the Catholic Church ( the Protestant Reformation of 1517 ), described in the canon of Vincent of Lérins as "" (" What believed everywhere, always and by everyone ").

* July 16, 1054: Liturgical, linguistic, and political divisions cause a permanent split between the Eastern and Western Churches, known as the East-West Schism or the Great Schism.

Among the proposed explanations for the lack European accounts of SN 1054 is its concurrence with the East-West Schism is prominent.

This was the first time a Pope had visited a predominantly Eastern Orthodox country since the East-West Schism in 1054, the event that separated Eastern Orthodoxy and Western Catholicism.

This feeling was further intensified after the East-West Schism in 1054, which reduced the pentarchy to a tetrarchy, but it existed long before that.

The Roman Catholic and Eastern Orthodox patriarchates split from one another in the East – West Schism of 1054 AD, and Protestantism came into existence during the Protestant Reformation of the 16th century, splitting from the Roman Catholic Church.

Steps towards reconciliation on a global level were taken in 1965 by the Roman Catholic and Orthodox churches mutually revoking the excommunications that marked their Great Schism in 1054 ; the Anglican Roman Catholic International Commission ( ARCIC ) working towards full communion between those churches since 1970 ; and the Lutheran and Roman Catholic churches signing The Joint Declaration on the Doctrine of Justification in 1999 to address conflicts at the root of the Protestant Reformation.

Constantine's foundation gave prestige to the Bishop of Constantinople, who eventually came to be known as the Ecumenical Patriarch, a situation that contributed to the Great Schism that divided Western Catholicism from Eastern Orthodoxy from 1054 onwards.

The sometimes subtle differences between Eastern and Western conceptions of authority and its exercise produced a gradually widening rift between the Churches which continued with some occasional relief throughout the following centuries until the final rupture of the Great Schism ( marked by two dates: 16 July 1054, and the Council of Florence in 1439 ).

This event is known as the East – West Schism, and it is traditionally dated to the year 1054, although it was more of a gradual process than a sudden break.

Disagreement about the limits of his authority was one of the causes of the Great Schism, conventionally dated to the year 1054, which split the church into the Catholic Church in the West, headed by the Bishop of Rome, and the Orthodox Church, led by the four eastern patriarchs.

* The East – West Schism, between the Eastern Orthodox Church and the Roman Catholic Church in 1054

* 1999 – Pope John Paul II travels to Romania becoming the first pope to visit a predominantly Eastern Orthodox country since the Great Schism in 1054.

In 1054, the Great Schism rent the church in two, however.

* 1054: the Great Schism, in which the Western ( Roman Catholic ) and Eastern Orthodox churches separated from each other.

It is the church in which Cardinal Humbert in 1054 excommunicated Michael I Cerularius – which is commonly considered the start of the Great Schism.

His meeting with Pope Paul VI in 1964 in Jerusalem led to rescinding the excommunications of 1054 which historically mark the Great Schism, the schism between the churches of the East and West.

The Patriarch rejected the claims of papal primacy, and subsequently the One Church was split in two in the Great East – West Schism of 1054.

This book has the text of the letters relevant to the Great Schism of 1054.

The Greek and Latin texts of the Schism was studied by Michele Giuseppe D ' Agostino, Il Primato della Sede di Roma in Leone IX ( 1049 – 1054 ).

The early sessions lasted until 17 July 1438 with each theological issue of the Great Schism ( 1054 ) hotly debated, including the Processions of the Holy Spirit, Filioque clause in the Nicene Creed, Purgatory and Papal Primacy.

They had been separated since the Schism of 1054, but the emperor hoped to use the possibility of re-uniting the churches to obtain help from Western Europe against the Turks.

After the Great Schism of 1054, the polarized religious atmosphere served to strengthen Guiscard's alliance with papal forces, resulting in a formidable papal-Norman opposition to the Eastern Empire.

Ibn Idhari wrote that the name was suggested by Ibn Yasin in the " persevering in the fight " sense, to boost morale after a particularly hard-fought battle in the Draa valley c. 1054, in which they had taken many losses.

The Latin Church of the West, which after 1054 was to become known separately as the Roman Catholic Church, accepted the decrees of the iconodule Seventh Ecumenical Council regarding images.

It may be that the events of 1054 are responsible for the idea, which appears in Shakespeare's play, that Malcolm III was put in power by the English.

Equally, Malcolm's raids in Northumbria may have been related to the disputed " Kingdom of the Cumbrians ", reestablished by Earl Siward in 1054, which was under Malcolm's control by 1070.

Negotiations for union of the eastern and western churches, which had been in a state of schism since 1054, soon got underway.

The reigns of Vladimir the Great ( 980 – 1015 ) and his son Yaroslav the Wise ( 1019 – 1054 ) constitute the Golden Age of Kiev, which saw the acceptance of Orthodox Christianity from Byzantium and the creation of the first East Slavic written legal code, the Russkaya Pravda.

The SN 1054 supernova, which gave birth to the Crab Nebula, was also observed by Chinese and Islamic astronomers.

The Crab Nebula, the shattered remnants of a star which exploded as a supernova, the light of which reached Earth in 1054 AD

* 1054: a large supernova is observed by astronomers, the remnants of which would form the Crab Nebula.

Upon his father's death in 1054, he received in appanage the towns of Pereyaslav, Rostov, Suzdal, and the township of Beloozero which would remain in possession of his descendants until the end of Middle Ages.

Thomas Asbridge argues that the First Crusade was Pope Urban II's attempt to expand the power of the church, and reunite the churches of Rome and Constantinople, which had been in schism since 1054.

The first pope to use it was Pope Leo IX in a letter sent in 1054 to Michael I Cerularius, Patriarch of Constantinople, in which he cited a large portion of the document, believing it genuine.

Rostella ( Rosdalla ), 3km south of Kilbeggan is the site of the earliest recorded tornado in Europe, which took place on April 30th, 1054.