After a bitter exchange of letters, the controversy subsided in favour of the Babylonian authorities, whose hegemony in calendrical matters was never again challenged.Calendars of various sectarian Jewish communities deviated considerably from the normative calendar described above.
“to rest”) is observed throughout the year on the seventh day of the week—Saturday.
According to biblical tradition, it commemorates the original seventh day on which God rested after completing the creation.
Some scholars, pointing to the Akkadian term which refers to the day of the Full Moon and is nowhere described as a day of rest, has little in common with the Jewish Sabbath.
It appears that the notion of the Sabbath as a holy day of rest, linking God to his people and recurring every seventh day, was unique to ancient Israel.
It consists usually of 12 alternating lunar months of 29 and 30 days each (except for Ḥeshvan and Kislev, which sometimes have either 29 or 30 days), and totals 353, 354, or 355 days per year.