Today is the beginning of the 7,524th year since the creation of the
world according to the Byzantine calendar. The Byzantine calendar was based on the
Julian but made two significant changes. September first was made the first day
of the year in accordance with the start of the ecclesiastical year. The second
major adaptation was the dating of the age of the world according to the Old
Testament. Opinion regarding the date of creation varied in the Eastern Roman
Empire until it was set in the mid 7th century. Eusebius (260-339) calculated 5499
years from the creation of the world until the birth of Christ. The
Alexandrians Annianos and Panodoros (5th Century) calculated the
same period to be between 5492-5494 with the range in dates is due to a dispute
over when the new year fell, March 24th to coincide with the
Alexandrian ecclesial year and the feast of Annunciation or the 29th
of August as the first day of the Coptic month of Thoth. The Byzantines settled
on 5508 years from the creation of the world until the incarnation of Christ.
The familiar A.D. system of Dionysius Exiguus (470-544) recording years according
to the incarnation of Christ rather than the creation of the world was not
adopted in the East.
Byzantine Manuscripts contain colophons that
give information about the work, copyist and date of completion. Many of these
colophons are full of complex abbreviations, symbols and beautiful ligatures. Some
of them reveal the mental state of the copyist or biographical notes regarding
co-workers at the scriptorium. All of them give the date according to the ἕτος κόσμου or έτος κτίσης κόσμου that is year of the
creation of the world. Most colophons also record the indiction (a 15 year
cycle starting on September 1st).
In order to calculate the Byzantine year between 1st January and 31st August simply subtract 5508 from the desired date A.D. for the rest of the year subtract 5509.
This very basic and clear colophon is from a copy of the
Ladder of Divine Ascent by St John Klimakos completed in the year 6477 AM, 12th
indiction, which corresponds to 969 A.D. It was finished on the first of June,
the third day of the week (Tuesday) in the fifth hour.
Metropolitan Savas of Pittsburgh signing the proclamation of the new indiction in Constantinople 7524 A.M.
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