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 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.

The Eastern Orthodox Church observes Wednesday ( as well as Friday ) as a fast day throughout the year ( with the exception of several fast-free periods during the year ).

Eastern Orthodox Christians are not supposed to eat at all on this day and the next, while the Catholic Church observes fasting and abstinence for this day as well as Ash Wednesday.

The Eastern monodic singing observes the tradition of Greek and Byzantine music as well as the requirements of the eight-voices polyphonic canon of the Eastern Orthodox Church.

The Eastern monodic singing observes the tradition of Greek and Byzantine music, the requirements of the eight-tones canon of the Eastern Orthodox chanting.

Indiana chose to exempt the portion of the state lying in the Eastern Time Zone ; however, that exemption was eliminated in 2006 and the entire state of Indiana now observes DST, leaving Arizona ( with the exception of the Navajo Indian Reservation ) and Hawaii as the only two states not to observe DST.

* Indiana: All of Indiana observes Eastern Time except for six northwestern counties in the Chicago metropolitan area and six southern counties in the Evansville metropolitan area.

* Michigan: All of Michigan observes Eastern Time except the four counties in the Upper Peninsula along the border with Wisconsin, which observe Central Time – Gogebic, Iron, Dickinson, Menominee.

The Eastern Orthodox Church consider Anna and Simeon the God-Receiver as the last prophets of Old Testament and observes their feast on February 3 / February 16 as the synaxis ( afterfeast ) following the Presentation of Christ, which Orthodox tradition calls " The Meeting of Our Lord and God and Savior, Jesus Christ ".

The Eastern Orthodox Church observes his feast on October 12 ( for those Orthodox Christians who follow the Julian Calendar, October 12 falls on October 25 of the Gregorian Calendar ).