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 )

Lecky and Stanley's Eastern Church.

Trinitarianism remained the dominant doctrine in all major branches of the Eastern and Western Church and later within Protestantism until modern times.

) However, Ambrosian chant was named in his honor due to his contributions to the music of the Church ; he is credited with introducing hymnody from the Eastern Church into the West.

( Eastern Orthodox Church )

** Abraham of Smolensk ( Eastern Orthodox Church )

* Saint Anastasius Sinaita ( of Sinai ) – theologian, Father of the Eastern Orthodox Church, monk, priest, and abbot of the monastery at Mt.

* Assumption of Mary ( Eastern Orthodox Church, a public holiday in the Republic of Macedonia, Serbia, and Georgia )

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

Further, proponents of the necessity of the personal apostolic succession of bishops within the Church point to the universal practice of the undivided early Church ( up to AD 431 ), before being divided into the Church of the East, Oriental Orthodoxy, the Eastern Orthodox Church and the Roman Catholic Church.

Churches that claim some form of episcopal apostolic succession, dating back to the apostles or to leaders from the apostolic era, include the Roman Catholic Church, the Eastern Orthodox and Oriental Orthodox Churches, the Church of the East, the Anglican Communion, and some Lutheran Churches ( see below ).

Roman Catholics recognize the validity of the apostolic successions of the bishops, and therefore the rest of the clergy, of the Eastern Orthodox, Oriental Orthodox, Church of the East, and the Old Catholic Church ( Union of Utrecht only ).

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

Each year, the Eastern Orthodox Church celebrates the anniversary of the consecration of the Church of the Resurrection ( Holy Sepulchre ) on September 13 ( for those churches which follow the traditional Julian calendar, September 13 currently falls on September 26 of the modern Gregorian calendar ).

* Eastern Christianity celebrates Easter on a Sunday between April 4 and May 8.

The Roman Catholic Church celebrates his feast day on February 13, while the Eastern Christianity celebrates it on March 8.

The Eastern Orthodox Church celebrates Philip's feast day on 14 November.

The Eastern Orthodox Church celebrates Saint Joseph on the Sunday after Christmas.

The Orthodox Church celebrates the Synaxis of the Archangel Michael and the Other Bodiless Powers on November 8 of Stencyl the Eastern Orthodox liturgical calendar ( for those churches which follow the Julian Calendar, November 8 falls on November 21 of the modern Gregorian Calendar ).

The Eastern Orthodox Church celebrates the Holy Maccabean Martyrs on August 1, the first day of the Dormition Fast.

Saint Basil died on January 1, and the Eastern Orthodox Church celebrates his feast day together with that of the Feast of the Circumcision on that day.

The Eastern Orthodox Church knows Margaret as Saint Marina, and celebrates her feast day on July 17.

On the same day the Eastern Orthodox church celebrates the day of John the Baptist and the rites and traditions of both holidays are often mixed.

The Coptic Orthodox Church celebrates the feast of Frumentius on December 18, the Eastern Orthodox on November 30, and the Roman Catholic on October 27.

The Eastern Orthodox Church celebrates it on November 21 as one of its twelve Great Feasts.

During this time, many celebrated travellors from Europe used the Eastern, dining in the station enroute, such as the literary celebrates Hans Christian Andersen, Ramalho Ortigão, Eça de Queiroz, Alberto Pimentel, Luísa de Freitas Lomelino and Eduardo Meneres.