Saint Alcuin ( Alcuin of York ) is considered as a saint by all the main branches of Christianity: Roman Catholic, Anglican and Eastern Orthodox Churches.

Athanasius is venerated as a Christian saint, whose feast day is 2 May in Western Christianity, 15 May in the Coptic Orthodox Church, and 18 January in the other Eastern Orthodox Churches.

The Greek Orthodox branch of Christianity continues to use the Greek translation ( the Septuagint ), but when a Latin translation ( called the Vulgate ) was made for the Western church, Kingdoms was first retitled the Book of Kings, parts One to Four, and eventually both Kings and Samuel were separated into two books each.

The main religions are Orthodox Christianity, Roman Catholicism, and Sunni Islam.

Worldwide the three largest groups of Christianity are the Roman Catholic Church, the Eastern Orthodox Church, and the various denominations of Protestantism.

Like the Roman Catholic Church, the Eastern Orthodox Church also traces its heritage to the foundation of Christianity through Apostolic succession and has an episcopal structure, though the autonomy of the individual, mostly national churches is emphasized.

The main religions of Croatia are Roman Catholicism ( 87. 8 %), Orthodox Christianity ( 4. 4 %) and Islam ( 1. 3 %).

Eastern Orthodox Christianity does not officially condemn or endorse capital punishment.

Clement is regarded as a Church Father, and he is venerated as a saint in Orthodox Christianity, Eastern Catholicism and Anglicanism.

" This is called the doctrine of the hypostatic union, which is still held today amongst all Protestant, Catholic, and Orthodox Christians, referred to as Chalcedonian Christianity.

Some Christian denominations hold that salvation depends upon transformational faith in Jesus, which expresses itself in good works as a testament ( or witness ) to ones faith for others to see ( primarily Eastern Orthodox Christianity and Roman Catholicism ), while others ( including most Protestants ) hold that faith alone is necessary for salvation.

Eastern Orthodox Christianity emphasizes a continuing life of repentance or metanoia, which includes an increasing improvement in thought, belief and action.

In Orthodox Christianity, deuterocanonical means that a book is part of the corpus of the Old Testament ( i. e. is read during the services ) but has secondary authority.

The combination of state autocracy and state religion was instilled in much of Europe, particularly in the lands which adopted Orthodox Christianity.

In the 5th century, Oriental Orthodoxy separated from Chalcedonian Christianity ( and is therefore separate from both the Eastern Orthodox and Roman Catholic churches ), well before the 11th century Great Schism.

Gogol's work is very different from the western European gothic fiction, as he is influenced by Ukrainian folklore, Cossack lifestyle and, being a very religious man, Orthodox Christianity.

Eastern Christianity ( the Eastern Orthodox, Oriental Orthodox and Eastern Catholic churches ) have a very rich and ancient hymnographical tradition.

Under the Byzantines, Christianity was dominated by the ( Greek ) Orthodox Church.

** History of Eastern Orthodox Christianity

The Fall of Constantinople and the death of the last Greek Orthodox Christian emperor contributed to this new idea of Moscow as ' New Rome ' and the seat of Orthodox Christianity.

The largest branches of Christianity are the Roman Catholic, Eastern Orthodox, Anglican, and Protestant churches.

Women's hair may be hidden using headscarves, a common part of the hijab in Islam and a symbol of modesty required for certain religious rituals in Orthodox Christianity.

In 1453 when the last vestige of ancient Roman power fell to the Turks, the city officially shifted religions -- although the Patriarch, or Pope, of the Orthodox Church continued to live there, and still does -- and became the capital of the Ottoman Empire.

Normally there are no celibate priests who are not monastics in the Orthodox Church, with the exception of married priests who have been widowed.

He is regarded as the " first master of the desert and the pinnacle of holy monks ", however, and there are monastic communities of the Maronite, Chaldean, and Orthodox churches which state that they follow his monastic rule.

The Books of the Bible are listed differently in the canons of Judaism and the Catholic, Protestant, Greek Orthodox, Slavonic Orthodox, Coptic, Georgian Orthodox, Armenian Apostolic, Syriac, Ethiopian and Eritrean Orthodox churches, although there is substantial overlap.

In Catholic, Eastern Orthodox, Oriental Orthodox and Anglican cathedrals there is a special chair set aside for the exclusive use of the bishop.

Eastern Orthodox tradition tells that the pagans directed the stream of a river against the sanctuary of St. Michael there to destroy it, but Michael the Archangel appeared and split the rock by lightning to give a new bed to the stream, diverting the flow away from the church and sanctifying forever the waters which came from the gorge.

According to Orthodox Jews too there are variations in Jewish custom from one part of the world to another.

Regarding the salvation of Jews, Muslims, and other non-Christians, the Orthodox have traditionally taught that there is no salvation outside the church.

The main altar there belongs to the Greek Orthodox, which contains The Rock of Calvary ( 12th Station of the Cross ).

On the left of the altar, towards the Eastern Orthodox chapel, there is a statue of Mary, believed to be working wonders ( the 13th Station of the Cross, where Jesus ' body was removed from the cross and given to his family ).

Under the status quo, the Eastern Orthodox, Roman Catholic, and Armenian Apostolic Churches all have rights to the interior of the tomb, and all three communities celebrate the Divine Liturgy or Holy Mass there daily.

The Roman Catholic Church recognizes as ecumenical various councils held later than the First Council of Ephesus ( after which churches out of communion with the Holy See because of the Nestorian Schism did not participate ), later than the Council of Chalcedon ( after which there was no participation by churches that rejected Dyophysitism ), later than the Second Council of Nicaea ( after which there was no participation by the Eastern Orthodox Church ), and later than the Fifth Council of the Lateran ( after which groups that adhered to Protestantism did not participate ).

In the fifth century, Pope Dioscorus, the Patriarch of Alexandria, rejected certain Christological dogmas promulgated by the Council of Chalcedon, and as a result, the Oriental Orthodox churches split from the rest ; however they continued the episcopal tradition, and today in fact there is dialog between the various orthodox churches over whether the schism was due to real differences or simply translation failures.

Thus, despite widely held popular belief outside the Orthodox cultures, there is not one bishop at the head of the Orthodox Church ; references to the Patriarch of Constantinople as a leader equivalent or comparable to a pope in the Roman Catholic Church are mistaken.

The Church considers the first seven Ecumenical Councils ( held between the 4th and the 8th century ) to be the most important ; however, there have been more, specifically the Synods of Constantinople, 879 – 880, 1341, 1347, 1351, 1583, 1819, and 1872, the Synod of Iaşi ( Jassy ), 1642, and the Pan-Orthodox Synod of Jerusalem, 1672, all of which helped to define the Orthodox position.

Moreover, in Yugoslavia there existed the Jasenovac concentration camp ( August 1941 – April 1945 ), which was the only central extermination camp outside of Poland, and the only one not operated by Nazis, but by the fascist Ustaše forces of the Independent State of Croatia, the majority of whose victims were Orthodox Christian Serbs, Roma, and Jews.

Indeed, " after the first or perhaps the second century, there is not record of it in any Orthodox source, and it is not recorded as occurring even among the great Fathers of the Egyptian desert, who were so filled with the Spirit of God they performed numerous astonishing miracles, including raising the dead ".

Within Modern Orthodox Judaism, there is no one committee or leader, but Modern Orthodox rabbis generally agree with the views set by consensus by the leaders of the Rabbinical Council of America.

With a membership currently estimated at over 85 million members worldwide, the Anglican Communion is the third largest Christian communion in the world, after the Roman Catholic Church and the Eastern Orthodox Churches.

In the Eastern Orthodox and Eastern Catholic Churches, the Abbot is referred to as the Hegumen.

By no means do all Jews today believe in reincarnation, but belief in reincarnation is not uncommon among many Jews, including Orthodox.

Arianism is defined as those teachings attributed to Arius which are in opposition to mainstream Trinitarian Christological doctrine, as determined by the first two Ecumenical Councils and currently maintained by the Roman Catholic Church, the Eastern Orthodox Churches, the Oriental Orthodox Churches, and most Reformation Protestant Churches.

In the Eastern Orthodox Church he is also considered a saint, his feast day being celebrated on 15 June .< ref >

Surviving medieval art is primarily religious in focus and funded largely by the State, Roman Catholic or Orthodox church, powerful ecclesiastical individuals, or wealthy secular patrons.

The basic military dress it is still worn in pictures into the Baroque period and beyond in the West ( see Reni picture above ), and up to the present day in Eastern Orthodox icons.

The lack of apostolic succession through bishops is the primary basis on which Protestant communities are not considered churches by the Orthodox churches and the Roman Catholic Church.

The teaching of the Eastern Orthodox Church on the Holy Mystery ( sacrament ) of Unction is similar to that of the Roman Catholic Church.

Because it is a Sacred Mystery of the Church, only Orthodox Christians may receive it.

In some dioceses of the Russian Orthodox Church it is customary for the bishop to visit each parish or region of the diocese some time during Great Lent and give Anointing for the faithful, together with the local clergy.

Mnemonics: LEO Red Cat ( Loss of Electrons is Oxidation, Reduction occurs at the Cathode ), or AnOx Red Cat ( Anode Oxidation, Reduction Cathode ), or OIL RIG ( Oxidation is Loss, Reduction is Gain of electrons ), or Roman Catholic and Orthodox ( Reduction-Cathode, anode-Oxidation ), or LEO the lion says GER ( Losing electrons is Oxidation, Gaining electrons is Reduction )

In Eastern Europe, the music performed in the Eastern Orthodox cathedrals and monasteries is exclusively sung without instrumental accompaniment.

In the Orthodox Church today, as in the early Church, singing is unaccompanied and instrumental music is not found.

In The Orthodox Corruption of Scripture, popular author and text critic Bart D. Ehrman argues that the Adoptionist Theology may date back almost to the time of Jesus and his view is shared by many other scholars.

Troas is also a titular see of the Orthodox Church under the Ecumenical Patriarchate.

He is now Metropolitan Savas ( Zembillas ) of Pittsburgh in the Greek Orthodox Archdiocese of America.