Certain modern institutions continue to use pre-Gregorian calendars for liturgical purposes
the verdict
SUPPORTED
the evidence backs this
refutedsupported
the weight of evidence
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Reference sources document that certain Eastern Orthodox and Oriental Orthodox churches continue to use the Julian or related pre-Gregorian calendars for religious and liturgical purposes.
rule, as does the liturgical calendar of the Roman Catholic Church. However, Celsus' definition continued to be used for legal purposes. It was incorporated
The Julian calendar is a solar calendar of 365 days in every year with an additional leap day every fourth year (without exception). The Julian calendar is still used as a religious calendar in parts of the Eastern Orthodox Church and in parts of Oriental Orthodoxy as well as in the Berber calendar. For a quick calculation, between 1901 and 2099 the much more common Gregorian date equals the Julia
The Gregorian calendar has replaced the Julian as the civil calendar in all countries which had been using it – Greece being the last to do so, in 1923. The liturgical calendar used by Christian denominations in the west are almost all based on the Gregorian calendar, but most Eastern Orthodox churches continue to base theirs on the Julian.
A calendar similar to the Julian one, the Alexandrian calendar, is the basis for the Ethiopian calendar, which is still the civil calendar of Ethiopia. Egypt converted from the Alexandrian calendar to Gregorian on 1 Thaut 1592/11 September 1875.
During the changeover between calendars and for some time afterwards, dual dating was used in documents and gave the date according to both systems. In contemporary as well as modern texts that describe events during the period of change, it is customary to clarify to which calendar a given date refers by using an O.S. or N.S. suffix, denoting Old Style (Julian) or New Style (Gregorian).
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Ethiopian calendar
The Ethiopian calendar is the main calendar used in Ethiopia. It serves as the liturgical calendar for Christians in Eritrea and Ethiopia belonging to the Orthodox Tewahedo churches, Eastern Catholic Church and Coptic Orthodox Church. It is a solar calendar which comes from the Egyptian calendar. But like the Julian calendar, it adds a leap day every four years. It begins the year on August 29 or August 30 in the Julian calendar. A seven to eight-year gap between the Ethiopian and Gregorian calendars results from an alternate calculation in determining the date of the annunciation of Jesus.[a]
Makeup
Like the Coptic calendar, the Ethiopic calendar has twelve months of 30 days plus five or six epagomenal days, which make up a thirteenth month.[2] The Ethiopian months begin on the same days as those of the Coptic calendar. The names of the days are in Ge'ez. The sixth epagomenal day is added every four years without exception on August 29 of the Julian calendar. This occurs six months before the Julian leap day. Thus the first day of the Ethiopian year, 1 Mäskäräm, for years between 1900 and 2099 (inclusive), is usually September 11 (Gregorian).
Everything we examined (2) — 1 independent source
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