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.

Some Eastern Orthodox Churches have issued statements to the effect that Anglican orders could be accepted, yet have still reordained former Anglican clergy ; other Orthodox churches have rejected Anglican orders altogether.

** April 6 ( Eastern Orthodox liturgics )

** April 15 ( Eastern Orthodox liturgics )

** April 30 ( Eastern Orthodox liturgics )

** August 22 ( Eastern Orthodox liturgics )

** August 6 ( Eastern Orthodox liturgics )

** August 9 ( Eastern Orthodox liturgics )

The Eastern Orthodox Church observes several All Souls ' Days during the year.

The Eastern Orthodox Church dedicates several days throughout the year to the dead, mostly on Saturdays, because of Jesus ' resting in the Holy Sepulchre on that day.

** August 13 ( Eastern Orthodox liturgics )

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

** August 2 ( Eastern Orthodox liturgics )

** April 1 ( Eastern Orthodox liturgics )

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.

** August 1 ( Eastern Orthodox liturgics )

** August 3 ( Eastern Orthodox liturgics )

** April 26 ( Eastern Orthodox liturgics )

In the Catholic Church ( both the Latin Rite and Eastern Catholic ), Eastern Orthodox, Coptic and Anglican abbeys, the mode of election, position, rights, and authority of an abbess correspond generally with those of an abbot.

** August 8 ( Eastern Orthodox liturgics )

** April 16 ( Eastern Orthodox liturgics )

Nevertheless, it remained one of the most splendid churches of the Eastern Empire, where the Byzantine Emperors were crowned.

Like the Roman Catholic Church, these ancient Eastern churches may use the doctrine of apostolic succession in ministry in their apologetics against Protestantism.

Some Protestants feel that such claims of apostolic succession are proven false by the differences in traditions and doctrines between these churches: Roman Catholics and Eastern Orthodox consider both the Church of the East and the Oriental Orthodox churches to be heretical, having been anathematized in the early ecumenical councils of Ephesus ( 431 ) and Chalcedon ( 451 ) respectively.

Present-day Christian religious bodies known for conducting their worship services without musical accompaniment include some Presbyterian churches devoted to the regulative principle of worship, Old Regular Baptists, Primitive Baptists, Plymouth Brethren, Churches of Christ, the Old German Baptist Brethren, the Eastern Orthodox Christian Church and the Amish, Old Order Mennonites and Conservative Mennonites.

He is venerated by the Roman Catholic Church, Oriental and Eastern Orthodox churches, the Lutherans, and the Anglican Communion.

The following is a troparion ( hymn ) to St Athanasius sung in some Eastern Orthodox churches.

He is celebrated in many churches on his feast days: 30 January in the Old-Calendar Eastern Orthodox Church and the Coptic Orthodox Church ; 17 January in the New-Calendar Eastern Orthodox Church, the Bulgarian Orthodox Church, the Roman Catholic Church and the Coptic Catholic Church.

The Eastern Orthodox, Oriental Orthodox and Eastern Catholic churches may have minor differences in their lists of accepted books.

The list given here for these churches is the most inclusive: if at least one Eastern church accepts the book it is included here.

In the Eastern churches, latifundia entailed to a bishop's see were much less common, the state power did not collapse the way it did in the West, and thus the tendency of bishops acquiring secular power was much weaker than in the West.

The traditional role of a bishop is as pastor of a diocese ( also called a bishopric, synod, eparchy or see ), and so to serve as a " diocesan bishop ," or " eparch " as it is called in many Eastern Christian churches.

; Catholicos: Catholicoi are the heads of some of the Eastern Orthodox, Oriental Orthodox, and Eastern Rite Catholic sui iuris churches ( notably the Armenian ), roughly similar to a Patriarch ( see above ).

In the Latin Rite, metropolitans are always archbishops ; in many Eastern churches, the title is " metropolitan ," with some of these churches using " archbishop " as a separate office.

; Chorbishop: A chorbishop is an official of a diocese in some Eastern Christian churches.

Most Eastern Orthodox churches allow varying amounts of formalised laity and / or lower clergy influence on the choice of bishops.

This also applies in those Eastern churches which are in union with the pope, though it is required that he give assent.

The Catholic Church does recognise as valid ( though illicit ) ordinations done by breakaway Catholic, Old Catholic or Oriental bishops, and groups descended from them ; it also regards as both valid and licit those ordinations done by bishops of the Eastern churches, so long as those receiving the ordination conform to other canonical requirements ( for example, is an adult male ) and an orthodox rite of episcopal ordination, expressing the proper functions and sacramental status of a bishop, is used ; this has given rise to the phenomenon of episcopi vagantes ( for example, clergy of the Independent Catholic groups which claim apostolic succession, though this claim is rejected by both Orthodoxy and Catholicism ).

There is a mutual recognition of the validity of orders amongst Roman Catholic, Eastern Orthodox, Old Catholic, Oriental Orthodox and Assyrian Nestorian churches.

The Nicene Creed is " accepted as authoritative by the Roman Catholic, Eastern Orthodox, Anglican, and major Protestant churches.

Some Lutheran and many Anglican provinces commemorate him on the traditional Eastern feast day of 27 January.

The Eastern Orthodox Church and the Byzantine Catholic Churches additionally commemorate him on the Fourth Sunday of Great Lent.

The Eastern Orthodox churches also commemorate her on the Sunday of the Myrrhbearers.

The Eastern churches commemorate him on 22 April, the day of his death.

The Eastern Orthodox commemorate him on 20 February.

The Eastern Orthodox Church and those Eastern Catholic Churches which follow the Byzantine Rite commemorate the " Repose of the Holy Apostle and Evangelist John the Theologian " on September 26.

The Eastern Orthodox Church and those Eastern Catholic Churches which follow the Byzantine Rite commemorate the " Repose of the Holy Apostle and Evangelist John the Theologian " on September 26.

The Syriac Orthodox Church, the Malankara Orthodox Syrian Church and the Greek Orthodox Church, as well as the Syriac Catholic Church, the Syro-Malankara Catholic Church and all Byzantine Rite Eastern Catholic Churches, commemorate Saint Clement of Rome ( called in Syriac " Mor Clemis ") on 24 November ; the Russian Orthodox Church commemorates St Clement on 25 November.

The 2nd century writer Lucian gave an account of the Greek Deucalion in De Dea Syria that seems to refer more to the Near Eastern flood legends: in his version, Deucalion ( whom he also calls Sisythus ) took his children, their wives, and pairs of animals with him on the ark, and later built a great temple in Manbij ( northern Syria ), on the site of the chasm that received all the waters ; he further describes how pilgrims brought vessels of sea water to this place twice a year, from as far as Arabia and Mesopotamia, to commemorate this event.

The Lenten fast observed in the Catholic Church and the Eastern Orthodox Church is a forty-day partial fast to commemorate the fast observed by Christ during his temptation in the desert.

Since the Soviet Union was to the east of Germany, it was May 9 Moscow Time when the German military surrender became effective, which is why Eastern European countries including Russia and former Soviet republics commemorate Victory Day on 9 May instead of 8 May.

The Eastern Orthodox and Byzantine Catholic churches commemorate Nicodemus on the Sunday of the Myrrhbearers, celebrated on the Third Sunday of Pascha ( i. e., the second Sunday after Easter ) as well as August 2, the date when tradition holds that his relics were found, along with those of Stephen the Protomartyr, Gamaliel, and Abibas ( Gamaliel's second son ).

The Roman Catholic Church and Eastern Orthodox Church commemorate Anna as a saint, Anna the Prophetess.

Furthermore the Tryzub is heavily used in the military heraldry of the Italian Army to commemorate the Italian participation on the Eastern Front during World War II.

On February 2, the same day as the Great Feast of the Meeting of the Lord, Orthodox Christians and Eastern Catholics commemorate a wonder-working icon of the Theotokos ( Mother of God ) known as " the Softening of Evil Hearts " or " Simeon's Prophecy.

Eastern Christians commemorate the baptism of Jesus in the Jordan River, seen as his manifestation to the world as the Son of God.

In parts of the Eastern Church, January 6 continued for some time as a composite feast that included the Nativity of Jesus: though Constantinople adopted December 25 to commemorate Jesus ' birth in the fourth century, in other parts the Nativity of Jesus continued to be celebrated on January 6, a date later devoted exclusively to commemorating his Baptism.

Saint Thomas Christians, like other Eastern Christians, celebrate Denha as a great feast to commemorate the Baptism of Jesus in the river Jordan.

The center is next to a marker commemorating the visit by President Warren G. Harding in 1923, who had come to Eastern Oregon to commemorate the Oregon Trail.

The Eastern Orthodox Churches commemorate her on 24 September.

In October 1997, the brother of the 14th Dalai Lama of Tibet ( Takster Rinpoche ), attended the 20th demonstration at Florida Splendid China to commemorate the 48th anniversary of takeover of Eastern Turkestan.

It was written to commemorate the construction of the large concrete " C " in 1905 on the " rugged Eastern foothills " of the Berkeley campus.