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BIBLE HISTORY DAILY

Deciphered Dead Sea Scroll Reveals 364-Day Calendar

Qumran calendar written in code

In 2017 scholars Eshbal Ratson and Jonathan Ben-Dov of the Department of Bible Studies at the University of Haifa published one of the last two remaining Dead Sea Scrolls in their article “A Newly Reconstructed Calendrical Scroll from Qumran in Cryptic Script” in the Journal of Biblical Literature (Winter 2017).

For more than a year, the scholars diligently pieced together 62 Dead Sea Scroll fragments, on which there was writing in code. Ratson and Ben-Dov deciphered the code on the reconstructed scroll, called Scroll 4Q324d, and revealed that the scroll describes a 364-day calendar used by the Qumran community that lived in the Judean Desert. This Qumran calendar gives us insight into how the community organized the seasons and religious festivals, and it sheds light on scribal customs.

qumran-calendar-4q324d

A portion of the recently deciphered Dead Sea Scroll 4Q324d containing a 364-day calendar used by the Qumran community in the Judean Desert. Photo: Courtesy of the University of Haifa.

The Dead Sea Scrolls—considered the greatest manuscript find of all time—were the writings of a small Jewish sect living at the site of Khirbet Qumran near the Dead Sea. Dating between 250 B.C.E. and 68 C.E., the scrolls contain both Hebrew Bible texts and texts that describe the particular beliefs and practices of this Qumran community, which called itself the Yahad (“together”).


FREE ebook: The Dead Sea Scrolls: Discovery and Meaning. What the Dead Sea Scrolls teach about Judaism and Christianity.


In 1991, the Biblical Archaeology Society had a critical role in freeing the Dead Sea Scrolls from a publication logjam in which an exclusive group of scholars produced one volume on the scrolls after 20 years of study. Throughout the subsequent 20 years, a larger team of scholars published 33 additional volumes in the official Discoveries in the Judaean Desert series. In explaining what we have learned from the scrolls, Dead Sea Scroll expert Lawrence H. Schiffman wrote in BAR:

[W]e now understand much better the evolution of the authoritative Masoretic text of the Hebrew Bible and its relation to the other textual traditions (including the Greek Septuagint) that existed in Second Temple times. In the Qumran community, differing Biblical text types or textual families coexisted, apparently without conflict. An official authoritative text had not yet been finalized.

We have also come to understand the varying modes of Biblical exegesis that would later influence the authoritative texts of both Judaism and Christianity.

qumran-caves

Tens of thousands of Dead Sea Scroll fragments were discovered in the Qumran caves near the Dead Sea. Seen here is Qumran Cave 4, where the majority of the Dead Sea Scrolls were found. Lux Moundi, CC BY 2.0 , via Wikimedia Commons.

One issue that was contested among different ancient Jewish sects was which calendar to use. While members of the Jerusalem Temple and the Hasmonean dynasty used the lunar calendar, the Qumran community used a 364-day calendar, as exemplified by Scroll 4Q324d recently published by Ratson and Ben-Dov. The scholars elaborate on the difference between the lunar calendar and the Qumran calendar in a University of Haifa press release:

The lunar calendar, which Judaism follows to this day, requires a large number of human decisions. People must look at the stars and moon and report on their observations, and someone must be empowered to decide on the new month and the application of leap years. By contrast, the 364-day calendar was perfect. Because this number can be divided into four and seven, special occasions always fall on the same day. This avoids the need to decide, for example, what happens when a particular occasion falls on the Sabbath, as often happens in the lunar calendar. The Qumran calendar is unchanging, and it appears to have embodied the beliefs of the members of this community regarding perfection and holiness.


The eBook, The Dead Sea Scrolls: Past, Present, and Future, brings together articles and interviews with the world’s leading experts on the scrolls. Receive your free copy today!


Scroll 4Q324d describes two festivals that aren’t in the Hebrew Bible, but are known from the Dead Sea Scroll known as the Temple Scroll: the festivals of New Wine and New Oil, which follow the festival of Shavuot celebrating the New Wheat. In addition, we learn from this scroll the name of the special day the Qumran community inserted between seasons to celebrate the transition: the name is Tekufah, which today means “period” in Hebrew.

The Qumran scribes used various codes in writing the Dead Sea Scrolls, but the main code they used, which was employed in Scroll 4Q324d, was Cryptic A (named by its decipherer, Biblical scholar J.T. Milik).

“Cryptic A is a simple replacement code, with each letter represented by a designated sign,” explain Ratson and Ben-Dov in their Journal of Biblical Literature article. “Some of these signs correspond to paleo-Hebrew or Greek letters, while others seem arbitrary. These signs played a part in the sectarian scribal practice, as some of them appear as scribal marks in various scrolls.”


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“The limited circulation of the cryptic script in the Yahad is useful for the study of secrecy and esotericism in that community,” Ratson and Ben-Dov conclude in their article. “It is also valuable for enriching our knowledge about other cases of cryptology in writings from antiquity, a well-known and intriguing aspect of ongoing research.”


This post originally appeared in Bible History Daily in February, 2018.


Related reading in Bible History Daily

Freeing the Dead Sea Scrolls

Lawrence H. Schiffman on the Dead Sea Scrolls’ History

How Old Is That? Dating in the Ancient World

The Masoretic Text and the Dead Sea Scrolls

All-Access members, read more in the BAS Library

A Short History of the Dead Sea Scrolls and What They Tell Us

Dead Sea Scrolls Spotlight

The Dead Sea Scrolls and the New Testament

The Dead Sea Scrolls and the People Who Wrote Them

Not a BAS Library or All-Access Member yet? Join today.



27 Responses:

  1. StopLyingAgainstTheTruthOfYahweh says:

    Truth Boom + Boom! 12/13 == 12*28/364 && OmerPortion == 24 and after 56yrs from new moon of the Winter Solstice (Thomas’ Day 21st of Dec), there are 13 full phases of Lunar Cycles as an Average. Honestly it is NOT that difficult to get those the Sabbath Law to set. Also all Yahweh’s Feasts and Festivals are to be observed, but only the Festival of Weeks (Shavuot) is…One can only wonder why, we all know why; Pharisees’ Leaven that was their teaching. JESUS IS THE LORD.

  2. Joseph Kriz( Sofer horographer ) says:

    B”H
    I have restored the DSS Calendar system into the Astronomical astrological calendar with 364 days as base the rest calendars, it is the Temple duty calendar for priest singer musician prophets and singers that stand shabbat to
    Shabbat duties 2 times year and once 3 times in six year 364 day cycle.. in 12 years. They have two zodiac years total 4 zodiacs to mark of time these do. And the soldiers that are to guard each month perpetually. Thus the are the names of the months. overlaying 12 year zodiac calendar overlays 12 x 364. As well as lunar calendar 12 years over perpetual cycle. The Olympic years are also to be added they happen on 365.25 leap year perpetually. 3 times every 12 year.
    Every 3 years the lunar
    Loses 10 days every year. Corrupting the year.. so not to give names to the lunar months each year loses 30 days.. nevertheless this allows for New Moon to Appear once every 3 years..as every 3 years we are to feed the poor widows Livim abd strangers at our gates. HASHEM FEEDS THE MOON. So once every 3 year cycle you will have full moon on 15 day of first month.
    The solar calendar instructed not to add the leap year or it adds 2months into the new year.. after 364 years.

    12 inch ruler of time
    24 inch ruler of time
    36 inch ruler of time.
    These calendars are what make your watches clocks today.
    The Astronomical astrological clocks are the workings of the calendars that are all separated by countries today each taking one piece of the clock works out of not ignorance today but of secrecy and of deception of those royalty purchased the clocks killing off the makers whom invented so no one can know its origins.B”H
    joetkrizatgmail.com if you want to see what 12000 364 day calendar laid out next to eachother. In 6 scrolls 2000 year increments thus you seevthe progression of the zodiac..
    All calendars are correct.. thr problem is todaybwe tell time withe the moon or second hand and the sun which is the minute hand.. so we have a stop watch with a face and cannot tell time.. BH..This whole system the minute markings or second markings are 12 soldiers and 10brothers and two grand sons. And the first 24 divisions of priests. Are the second markings between the numbers and the prophets and seers are the last 24 markings in between 6 and 12.B”H I challenge anyone to prove difference this is the mystery. Of the end of days and end if time.
    The restoration of Jerusalem time.

Write a Reply or Comment

Your email address will not be published. Required fields are marked *


27 Responses:

  1. StopLyingAgainstTheTruthOfYahweh says:

    Truth Boom + Boom! 12/13 == 12*28/364 && OmerPortion == 24 and after 56yrs from new moon of the Winter Solstice (Thomas’ Day 21st of Dec), there are 13 full phases of Lunar Cycles as an Average. Honestly it is NOT that difficult to get those the Sabbath Law to set. Also all Yahweh’s Feasts and Festivals are to be observed, but only the Festival of Weeks (Shavuot) is…One can only wonder why, we all know why; Pharisees’ Leaven that was their teaching. JESUS IS THE LORD.

  2. Joseph Kriz( Sofer horographer ) says:

    B”H
    I have restored the DSS Calendar system into the Astronomical astrological calendar with 364 days as base the rest calendars, it is the Temple duty calendar for priest singer musician prophets and singers that stand shabbat to
    Shabbat duties 2 times year and once 3 times in six year 364 day cycle.. in 12 years. They have two zodiac years total 4 zodiacs to mark of time these do. And the soldiers that are to guard each month perpetually. Thus the are the names of the months. overlaying 12 year zodiac calendar overlays 12 x 364. As well as lunar calendar 12 years over perpetual cycle. The Olympic years are also to be added they happen on 365.25 leap year perpetually. 3 times every 12 year.
    Every 3 years the lunar
    Loses 10 days every year. Corrupting the year.. so not to give names to the lunar months each year loses 30 days.. nevertheless this allows for New Moon to Appear once every 3 years..as every 3 years we are to feed the poor widows Livim abd strangers at our gates. HASHEM FEEDS THE MOON. So once every 3 year cycle you will have full moon on 15 day of first month.
    The solar calendar instructed not to add the leap year or it adds 2months into the new year.. after 364 years.

    12 inch ruler of time
    24 inch ruler of time
    36 inch ruler of time.
    These calendars are what make your watches clocks today.
    The Astronomical astrological clocks are the workings of the calendars that are all separated by countries today each taking one piece of the clock works out of not ignorance today but of secrecy and of deception of those royalty purchased the clocks killing off the makers whom invented so no one can know its origins.B”H
    joetkrizatgmail.com if you want to see what 12000 364 day calendar laid out next to eachother. In 6 scrolls 2000 year increments thus you seevthe progression of the zodiac..
    All calendars are correct.. thr problem is todaybwe tell time withe the moon or second hand and the sun which is the minute hand.. so we have a stop watch with a face and cannot tell time.. BH..This whole system the minute markings or second markings are 12 soldiers and 10brothers and two grand sons. And the first 24 divisions of priests. Are the second markings between the numbers and the prophets and seers are the last 24 markings in between 6 and 12.B”H I challenge anyone to prove difference this is the mystery. Of the end of days and end if time.
    The restoration of Jerusalem time.

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Your email address will not be published. Required fields are marked *


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