AI finds Dead Sea Scrolls are older than first thought

An AI program trained to study the handwriting styles of ancient manuscripts suggests many of the Dead Sea Scrolls might be older than previously thought.

The study is the latest in a new era of antiquity studies which use AI to reveal the secrets written on frayed and crumbling scrolls.

The new method combines AI, radiocarbon dating, and handwriting analysis to more accurately estimate an ancient text’s age.

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The proposed redating of some scrolls could reshape our understanding of the Dead Sea Scrolls, and of Judaism and early Christianity, the authors say.

“It is very exciting to set a significant step into solving the dating problem of the Dead Sea Scrolls and also creating a new tool that could be used to study other partially dated manuscript collections from history,” said study author Mladen Popović from the University of Groningen, The Netherlands.

The study appeared today in the journal Plos One.

RADIOCARBON DATING AND AI ANALYSIS OF HANDWRITING

The Dead Sea Scrolls, the first of which were discovered in a cave in Israel in 1947, are the most momentous manuscript discovery of the past hundred years.

There are around 1,000 manuscripts in the Dead Sea Scrolls. Among them are some of the oldest known copies of texts from the Hebrew Bible. Studies of these manuscripts have profoundly changed understanding of the origins of Christianity and the formation of post-biblical Judaism

Dating these manuscripts with paleography – the study of ancient handwriting – reveals them to have been written over several hundred years between 250BCE and 100CE.

However, scholars have struggled to analyze ancient texts, particularly distinguishing one writer’s style from another, meaning dating isn’t very reliable.

The researchers aimed to improve analytical methods by using AI to study handwriting and cross reference this data with radiocarbon dating. Radiocarbon dating estimates the age of materials by measuring carbon-14 isotopes that slowly disappear over time.

“The advantage of the [AI] model is that it provides quantified objectivity to palaeography, reducing the method’s subjectivity,” the authors write.

An AI model was first trained on 24 manuscripts with reliable radiocarbon dating. The authors then used this AI model to analyze the handwriting style of 135 scrolls with unknown dates spanning three centuries from around 200BCE to 100CE.

This created a better way of dating written manuscripts with 79 per cent accuracy, according to the analysis.

“This novel approach allowed [the researchers] to combine historical expertise with technical precision,” said Thea Sommerschield and Yannis Assael, who previously developed AI tools for the study of ancient texts at the University of Oxford, UK. Sommerschield and Assael were not involved in the study.

NEW DEAD SEA SCROLL CHRONOLOGY

The authors believe their analysis could lead to a new chronology of the scrolls. If verified, it would change understanding of the history of ancient Judea and the people who wrote the texts.

The AI analysis found the manuscripts are older than previous estimates overall, suggesting dates in the early second century BCE, and sometimes slightly earlier.

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Scholars often assume that the rise and expansion of the Hasmonaean kingdom from the mid-second century BCE onward caused a rise in “literacy scribal intellectual culture.” The authors say their findings suggest that scribes were copying multiple literary manuscripts before this period.

Sommerschield and Assael say the new study shows AI could be used to provide more accurate dating of other ancient texts.

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“This new study shows that computational tools don’t diminish the role of human expertise, they enhance it, opening new paths for discovery in even the most well-studied texts,” they said in a joint email to DW.

Antiquity scholars believe they are on the brink of a new era of because of AI. Other researchers have been using AI to translate ancient texts that have been vexing ancient scholars for decades.