He [the questioner] thought that Rav Nahman wanted to dispose of him anyhow, but when he went and studied it thoroughly he found that it is indeed taught [in a Baraita]: In the Diaspora the Greek Era alone is used. In the 8th and 9th centuries AD, the center of Jewish life moved from Babylonia to Europe, so calculations from the Seleucid era "became meaningless".

This is also called molad Ba Ha Ra D, because it occurred on Day 2 (yom Beis), 5 (Hei) hours, 204 (Ra D) parts ( 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).

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.

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.

However this masterpiece of Christian symbolism had two serious weak points: historical inaccuracy surrounding the date of Resurrection as determined by its Easter computus, A new variant of the World Era was suggested in the Chronicon Paschale, a valuable Byzantine universal chronicle of the world, composed about the year AD 630 by some representative of the Antiochian scholarly tradition. For its influence on Greek Christian chronology, and also because of its wide scope, the "Chronicon Paschale" takes its place beside Eusebius, and the chronicle of the monk Georgius Syncellus The Byzantine Anno Mundi era was the official calendar of the Eastern Orthodox Church from c. By the late 10th century the Byzantine era, which had become fixed at 1 September 5509 BC since at least the mid-7th century (differing by 16 years from the Alexandrian date, and 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. The computation was derived from the Septuagint version of the Bible, and placed the date of creation at 5509 years before the Incarnation, which was later taken to mean 5509 BC when conversions to the Christian era were desired.

Its associated molad Adam (molad Va Ya D) occurred on Day 5 (yom Vav) at 14 (Yud Daled) hours (and 0 parts).