301 A.D. The Kingdom of Armenia Becomes the First Christian State (Eastern Orthodox Christianity: A Chronology). 313 A.D. Emperor Constantine Issues the Edict of Milan, Legalizing Christianity in the Roman Empire (Eastern Orthodox Christianity: A Chronology). 330 A.D. Emperor Constantine Christens the City of Byzantium as the New Eastern Capital of the Roman Empire, renaming the “New Rome” Constantinople (Eastern Orthodox Christianity: A Chronology). 1
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1
301 A.D.The Kingdom of
Armenia Becomes the First Christian
State (Eastern Orthodox
Christianity: A Chronology).
313 A.D.Emperor Constantine
Issues the Edict of Milan, Legalizing Christianity in the
Roman Empire (Eastern Orthodox
Christianity: A Chronology).
330 A.D. Emperor Constantine Christens the City of
Byzantium as the New Eastern Capital of the
Roman Empire, renaming the “New Rome”
Constantinople (Eastern Orthodox Christianity: A
Chronology).
2
532-537 A.D. By Order of
Emperor Justinian, a New Cathedral, the Hagia Sophia,
is built in Constantinople
(Eastern Orthodox Christianity: A Chronology).
730 A.D.Byzantine
Emperor Leo III bans the
veneration of images, causing
the first period of Iconoclasm
(Eastern Orthodox Christianity: A Chronology).
787 A.D.The Seventh Ecumenical
Council, Nicea II, restores the veneration of
images (Eastern Orthodox
Christianity: A Chronology).
815 A.D.A council called
by Emperor Leo V again bans images, causing the second
period of Iconoclasm
(Eastern Orthodox Christianity: A Chronology).
3
843 A.D.Byzantine Empress Theodora restores the veneration of
images on the First Sunday of Lent, which became
known as the Sunday of Orthodoxy
(Eastern Orthodox Christianity: A Chronology).
862 A.D.Byzantine Emperor Michael III sends
Cyril and Methodius to convert the Slavs
to Christianity through translating the Bible into the
Slavic tongue (Eastern Orthodox
Christianity: A Chronology).
988 A.D.Prince Valdamir is
baptized and marries a Byzantine
princess. Russia then becomes a Christian State
(Eastern Orthodox Christianity: A Chronology).
4
1054 A.D.The Great Schism occurs (according to the Western
Church) creating a Western Christianity sect (Catholicism), and an Eastern Christianity sect (Eastern Orthodox). This occurs due to the Papacy’s assertion of power over all of Christendom,
and the Eastern Christians removing the Filioque, word added to the Nicene Creed to
assert the procession of the Holy Ghost from the son and the
father, from the Nicene Creed (Eastern Orthodox Christianity:
A Chronology).
1098 A.D.Beginning of the First Crusade. An uneasy
alliance occurs between Western
Crusaders and Byzantine Emperor Alexius (Eastern
Orthodox Christianity: A Chronology).
1204 A.D.After no luck in
conquering the Muslims during the Fourth
Crusade, in order to pay off Venetian Bankers, the
armies sack Constantinople for three days and set up a Latin
Empire (Eastern Orthodox Christianity: A
Chronology).
5
1261 A.D.Emperor Michael
Palaeologus reconquers
Constantinople for the Byzantines (Eastern
Orthodox Christianity: A Chronology).
1439 A.D.Council of Florence
where Emperor John VIII attempts to reunite the
East and West in order to receive Western military aid to battle the Turks. The Greek Orthodox
Church refuses to accept this effort at unification
(Eastern Orthodox Christianity: A Chronology).
1448 A.D.The Russian Orthodox
Church declares its organizational
independence from Constantinople and elects
the first native-born Russian bishop, Jonas I
(Eastern Orthodox Christianity: A Chronology).
6
1453 A.D.Turkish armies
conquer Constantinople,
and the Byzantine
Empire falls (Eastern Orthodox
Christianity: A Chronology).
1589 A.D.Patriarch Jeremias II
of Constantinople raises Metropolitan
Job of Moscow to the rank of Patriarch of Moscow and of All Russia, making him
the head of the largest Orthodox church.
Moscow would come to be called "the
Third Rome” (Eastern Orthodox
Christianity: A Chronology).
1596 A.D.At the Union of Brest-
Litovsk, several million Ukrainian and
Byelorussian Orthodox Christians, living under
Polish rule, leave the Russian Orthodox Church and recognize the Pope of Rome, without giving up
their Byzantine liturgy and customs. This was the beginning of what is
variously known as the Uniate, Eastern Rite Catholic, or Greek
