Эра Anno Mundi: летоисчисление от сотворения мира.

Calendar era based on the biblical account of creation

|

Anno Mundi (from Latin "in the year of the world"; לבריאת העולם), abbreviated as AM or A. M., or Year After Creation, The new year begins at Rosh Hashanah, in Tishrei. Anno mundi 5784 (meaning the 5,784th year since the creation of the world) began at sunset on 15 September 2023 according to the Gregorian calendar. The Byzantine calendar was used in the Eastern Roman Empire and many Christian Orthodox countries and Eastern Orthodox Churches and was based on the Septuagint text of the Bible. That calendar is similar to the Julian calendar except that its reference date is equivalent to 1 September 5509 BCE on the Julian proleptic calendar. While both calendars reputedly counted the number of years since the creation of the world, the primary reason for their disparity lies in which underlying biblical text is chosen (the Earth seems to have been created roughly around 5500 BCE based on the Greek Septuagint text, and about 3760 BCE based on the Hebrew Masoretic text). Most of the 1,732 year difference resides in numerical discrepancies in the genealogies of the two versions of the Book of Genesis. Patriarchs from Adam to Terah, the father of Abraham, are said to be older by 100 years or more when they begat their named son in the Greek Septuagint than they were in the Latin Vulgate, or the Hebrew Tanakh. The net difference between the two major genealogies of Genesis is 1,466 years (ignoring the "second year after the flood" ambiguity), 85% of the total difference. (See Dating creation.) There are also discrepancies between methods of dating based on the text of the Bible vs. modern academic dating of landmark events used to calibrate year counts, such as the destruction of the First Temple—see Missing years (Jewish calendar).

Occasionally in Talmudic writings, reference was made to other starting points for eras, such as Destruction Era dating, being the number of years since the 70 CE destruction of the Second Temple, and the number of years since the Creation year based on the calculation in the Seder Olam Rabbah. By his calculation, based on the Masoretic Text, Adam and Eve were created on 1st of Tishrei (Rosh Hashanah Day 1) in 3760 BCE, later confirmed by the Muslim chronologist al Biruni as 3,448 years before the Seleucid era. An example is the c. 8th century CE Baraita of Samuel. In the 8th and 9th centuries CE, the center of Jewish life moved from Babylonia to Europe, so calculations from the Seleucid era "became meaningless". The new system reached its definitive form in 1178 when Maimonides completed the Mishneh Torah. In the section Sanctification of the Moon (11.16), he wrote of his choice of Epoch, from which calculations of all dates should be made, as "the third day of Nisan in this present year which is the year 4938 of the creation of the world" (22 March 1178). He included all the rules for the calculated calendar epoch and their scriptural basis, including the modern epochal year in his work, and establishing the final formal usage of the anno mundi era. The first year of the Jewish calendar, Anno Mundi 1 (AM 1), began about one year before creation, so that year is also called the Year of emptiness. The first five days of Jewish creation week occupy the last five days of AM 1, Elul 25–29. The sixth day of creation, when Adam and Eve were created, is the first day of AM 2, Rosh Hashanah (1 Tishrei). Its associated molad Adam (molad VaYaD) occurred on Day 6 (yom Vav) at 14 (Yud Daled) hours (and 0 parts). A year earlier, the first day of AM 1, Rosh Hashanah (1 Tishrei), is associated with molad tohu (new moon of chaos), so named because it occurred before creation when everything was still chaotic—it is also translated as the new moon of nothing. This is also called molad BaHaRaD, because it occurred on Day 2 (yom Beis), 5 (Hei) hours, 204 (Reish Daled) parts (11:11:20 pm). Because this is just before midnight when the Western day begins, but after 6 pm when the Jewish calendrical day begins (equivalent to the next tabular day with the same daylight period), its Julian calendar date is 6–7 October 3761 BCE (Gregorian: 6–7 September 3761 BCE or −3760). In Hebrew, Anno Mundi years are labeled "in the year of the world" (לבריאת העולם), while in English they are abbreviated AM or A. M Occasionally, Anno Mundi is styled as Anno Hebraico (AH), though this is subject to confusion with notation for the Islamic Hijri year. The Jewish Anno Mundi count is sometimes referred to as the "Hebrew era", to distinguish it from other systems such as the Byzantine calendar (which uses a different calculation of the year since creation. Thus, adding 3760 before Rosh Hashanah or 3761 after to a Julian calendar year number starting from 1 CE will yield the Hebrew year. For earlier years there may be a discrepancy; see Missing years (Jewish calendar).

The Septuagint was the most scholarly non Hebrew version of the Old Testament available to early Christians. Many converts already spoke Greek, and it was readily adopted as the preferred vernacular language rendering for the eastern Roman Empire. The later Latin translation called the Vulgate, an interpretative translation from Hebrew and other Greek sources, replaced it in the west after its completion by St. Jerome c. 405, Latin being the most common vernacular language in those regions.

The earliest extant Christian writings on the age of the world according to the biblical chronology were therefore based on the Septuagint, due to its early availability. They can be found in the Apology to Autolycus (Apologia ad Autolycum) by Theophilus (AD 115–181), the sixth bishop of Antioch, and the Five Books of Chronology by Sextus Julius Africanus (AD 200–245). Theophilus presents a detailed chronology "from the foundation of the world" to emperor Marcus Aurelius. The Chronicon of Eusebius (early 4th century) and Jerome (c. 380, Constantinople) dated creation to 5199 BCE. Earlier editions of the Roman Martyrology for Christmas Day used this date, as did the Irish Annals of the Four Masters.

The Byzantine Anno Mundi era was the official calendar of the Eastern Orthodox Church from c. AD 691 – c. no to 1728 in the Ecumenical Patriarchate. By the late 10th century the Byzantine era, which had become fixed at 1 September 5509 BCE since at least the mid 7th century (differing by 16 years from the Alexandrian date, and by 2 years from the Chronicon Paschale), had become the widely accepted calendar by Chalcedonian Christianity. The Byzantine era was used as the civil calendar by the Byzantine Empire from AD 988 to 1453, and by Russia from c. AD 988 to 1699. The computation was derived from the Septuagint version of the Bible, and placed the date of creation at 5,509 years before the Incarnation, which was later taken to mean 5509 BCE when conversions to the Christian era were desired. With a new year date of September 1, which coincides with the beginning of the Orthodox liturgical year, its epoch became 1 September 5509 BCE (Julian), and year AM 1 thus lasted until 31 August 5508 BCE. The "year of creation" was generally expressed in Greek in the Byzantine calendar as Etos Kosmou, literally "year of the universe".

Western Christianity never fully adopted an Anno Mundi epoch system, and did not at first produce chronologies based on the Vulgate that were in contrast to the Eastern calculations from the Septuagint. Since the Vulgate was not completed until only a few years before the sack of Rome by the Goths, there was little time for such developments before the political upheavals that followed in the West. Whatever the reasons, the West eventually came to rely instead on the independently developed Anno Domini (AD) epoch system. AM dating did continue to be of interest for liturgical reasons; however, since it was of direct relevance to the calculation of the Nativity of Jesus (AM 5197–5199) and the Passion of Christ (AM 5228–5231). For example, Bede in his World Chronicle (Chapter 66 of his De Temporum Ratione, On the Reckoning of Time), dated all events using an epoch he derived from the Vulgate which set the birth of Christ as AM 3952. In his Letter to Plegwin, Bede explained the difference between the two epochs.