A granite boulder carved more than 35,000 years ago deep in a cave in Israel may be the oldest evidence of ritual practices in the Holy Land, a new study suggests.
The grooves carved into the boulder look strikingly similar to the pattern of a tortoise shell. While it’s unknown what this design means, it’s possible that this was an ancient symbol of unification, according to study co-author Israel Hershkovitz, a physical anthropologist at Tel Aviv University.
In that case, it may be that the sections of the shell, known as “scutes,” may have represented distinctive groups of people who had been integrated into the ancient society, Hershkovitz told Live Science.
The ritual boulder was discovered deep within Manot Cave, in the Galilee region of northern Israel, where Hershkovitz has led excavations since 2010.
The cave was discovered by construction workers in 2008 and the archaeological work initially involved areas near the cave’s entrance where prehistoric people lived, carrying out activities such as shaping stone tools, butchering animals and eating, Hershkovitz said. But the team didn’t discover the ritual boulder deep in the cave until 2013, he said.
“It was quite a surprise, because we were concentrating close to the entrance, where there was more light and people were living,” he said. But “it was so dark and deep there, we rarely visited that part.”
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Turtle rock
According to the study, the chamber containing the carved boulder was separated from the living areas behind a gallery of large stalagmites and stalactites.
The granite boulder weighs more than 60 pounds (28 kilograms) and is a little less than a foot (30 centimeters) across. It was discovered in a niche in the back wall of the chamber and was the only artifact found nearby.
The rock’s upper surface is carved with deep grooves; the authors noted that the carving was made at roughly the same time as some of the oldest known cave paintings in France.
Although there may be some earlier evidence of ritual practices by modern humans, such as the 40,000-year-old “lion man” stone figurine from a cave in Germany, the study noted that the boulder in the Manot Cave is the earliest evidence of ritual practices in the eastern Mediterranean region.
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Ancient cave
Examinations of the ritual boulder suggest the grooves were deliberately carved with flint tools, while analysis of the calcite crusts in some of the grooves date it to between 35,000 and 37,000 years ago, according to the study, published Dec. 9 in the journal PNAS.
The dating places the carved boulder within the Early Upper Paleolithic period, from about 33,000 to 48,000 years ago, when Homo sapiens hunter-gatherers were adding new stone tool technologies to much older ones.
According to the study, particles of wood ash found in the outer layers of the stalactites and stalagmites within the boulder chamber indicate that it was illuminated by fire, possibly during ritual gatherings. Acoustic tests also revealed that the chamber was “well-suited for communal gatherings,” by facilitating conversations, speeches and hearing, the researchers found.
“Our data from Manot Cave testified to the existence of some initial forms of collective ritual practices already in the Early Upper Paleolithic,” the authors wrote. “The existence of a ritual compound at Manot Cave is not surprising … [It was] a successful adaptive strategy to cope with the large demographic and economic challenges human society faced in the Upper Paleolithic.”
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