The charred lump of a 2,000-year-old scroll sat in an Israeli archeologist’s storeroom for decades, too brittle to open. Now, new imaging technology has revealed what was written inside: The earliest evidence of a Biblical text in its standardized form.
The passages from the Book of Leviticus offer the first physical evidence of what has long been believed: that the version of the Hebrew Bible used today goes back at least 2,000 years, academics say.
The discovery, announced in a Science Advances journal article by researchers in Kentucky and Jerusalem on Wednesday, was made using “virtual unwrapping,” a 3D digital analysis of an X-ray scan.
Researchers say it is the first time they have been able to read the text of an ancient scroll without having to physically open it.
“You can’t imagine the joy in the lab,” said Pnina Shor of the Israel Antiquities Authority, who participated in the study.
The digital technology, funded by Google and the US National Science Foundation, is slated to be released to the public as open-source software by the end of next year.
Researchers hope to use the technology to peek inside other ancient documents too fragile to unwrap, like some of the Dead Sea Scrolls and papyrus scrolls carbonized in the Mt Vesuvius eruption in 79 AD.
Researchers say the technology could also be applied to the fields of forensics, intelligence and antiquities conservation.
The Biblical scroll examined in the study was discovered by archeologists in 1970 at Ein Gedi, the site of an ancient Jewish community near the Dead Sea. Inside the ancient synagogue’s ark, archeologists found lumps of scroll fragments.
The synagogue was destroyed in an ancient fire, charring the scrolls. The dry climate of the area kept them preserved, but when archeologists touched them, the scrolls would begin to disintegrate. So the charred logs were shelved for nearly half a century, with no one knowing what was written inside.
Last year, Yosef Porath, the archeologist who excavated at Ein Gedi in 1970, walked into the Israel Antiquities Authority’s Dead Sea Scrolls preservation lab in Jerusalem with boxes of the charcoal chunks. The lab has been creating high-resolution images of the Dead Sea Scrolls, the earliest copies of Biblical texts ever discovered, and he asked researchers to scan the burned scrolls.
“I looked at him and said: ‘you must be joking,’” said Shor, who heads the lab.
She agreed, and a number of burned scrolls were scanned using X-ray-based micro-computed tomography, a 3D version of the CT scans hospitals use to create images of internal body parts. The images were sent to William Brent Seales, a researcher in the computer science department at the University of Kentucky. Only one of the scrolls could be deciphered.
Using the “virtual unwrapping” technology, he and his team painstakingly captured the three-dimensional shape of the scroll’s layers, using a digital triangulated surface mesh to make a virtual rendering of the parts they suspected contained text. They then searched for pixels that could signify ink made with a dense material like iron or lead. The researchers then used computer modeling to virtually flatten the scroll, to be able to read a few columns of text inside.
“Not only were you seeing writing, but it was readable,” Seales said. “At that point we were absolutely jubilant.”
The researchers say it is the first time a Biblical scroll has been discovered in an ancient synagogue’s ark, where it would have been stored for prayers, and not in desert caves like the Dead Sea Scrolls.
The discovery holds great significance for academics’ understanding of the development of the Hebrew Bible, researchers say.
In ancient times, many copies of the Hebrew Bible circulated. The Dead Sea Scrolls, dating to as early as the third century BC, featured versions of the text that are radically different from today’s Hebrew Bible.
Academics have believed that the Bible in its standard form first came about about 2,000 years ago, but never had physical proof, until now, according to the study. Previously the oldest known fragments of the modern Biblical text dated to the eighth century.
The text discovered in the charred Ein Gedi scroll is “100 percent identical” to the version of the Book of Leviticus that has been in use for centuries, said Dead Sea Scroll academic Emmanuel Tov from the Hebrew University of Jerusalem, who participated in the study.
“This is quite amazing for us,” he said. “In 2,000 years, this text has not changed.”
Noam Mizrahi, a Dead Sea Scrolls expert at Tel Aviv University who did not participate in the study, called it a “very, very nice find.”
He said the imaging technology holds great potential for more readings of unopened Dead Sea Scrolls.
“It’s not only what was found, but the promise of what else it can uncover, which is what will turn this into an exciting discovery,” Mizrahi said.
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