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3,400 years ago, 'brain surgery' left man with square hole in his skull, ancient bones suggest
A hole in a Late Bronze Age human skull found in northern Israel may be early evidence of trepanation; but other experts argue that the hole could have been made for ritual purposes after the man's death.
The brothers' skeletons were found in 2016 at Tel Megiddo, the site of a Canaanite city-state in the Late Bronze Age. The city was the location of several ancient battles and gave its name to Armageddon — the prophesied final battle between God and governments.
(Image credit: Robert Homsher/Courtesy of the Megiddo Expedition)
The skeletal remains of two Bronze Age brothers buried more than 3,400 years ago in what's now northern Israel reveal that the siblings lived with severe health problems but had access to treatments, including trepanation, a new study suggests.
The older brother had a piece of bone removed from his skull, possibly in an attempt to treat debilitating diseases, the researchers said. The discovery may be among the earliest evidence in this region for the practice of trepanation (also spelled trephination) — making a hole in the skull, hopefully without damaging the brain — which in ancient times was thought to be a treatment for various ailments, according to the study, published online Wednesday (Feb. 22) in the journal PLOS One.
But other experts disagree, saying the holes likely weren't meant to be curative; instead, it's possible that the man's skull was modified for ritual purposes after his death.
The skeletons were found in 2016 in a tomb at Tel Megiddo, which was the site of a Canaanite city-state in the Late Bronze Age. An analysis of their DNA showed that the men were brothers.
An examination of the skeletons showed that both men suffered from debilitating diseases that destroyed some of their bones and distorted others. It's possible that the men were genetically predisposed to such diseases, which may have included a form of leprosy, study first author Rachel Kalisher, a doctoral student in archaeology at Brown University, told Live Science.
Bronze Age bones
A square piece of bone about an inch across had been removed from the skull of the older brother, by scoring the bone and levering out pieces from the center. The researchers propose this was a trepanation, but their interpretation is disputed.
(Image credit: Kalisher et al., 2023, PLOS ONE, CC-BY 4.0)
The analysis by Kalisher and her colleagues suggests that the younger brother was in his late teens or early 20s when he died during the Late Bronze Age, between 1550 B.C. and 1450 B.C., and that the older brother was between 21 and 46 years old when he died a few years later.
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The older brother had a square piece of bone about 1.2 inches (30 millimeters) across removed from his skull. Because the skull shows no signs of healing, the authors proposed that the bone removal occurred about one week before the man's death and that it was a form of trepanation to treat the debilitating conditions he suffered from.
"The totality of evidence is that you have an individual who had suffered illness for a long period of time, and that perhaps it was a decline," Kalisher said. "So perhaps this was some sort of intervention, or a life-saving procedure."
The hole was made by scoring the skull and carefully levering out pieces from the center — a different procedure from circular trepanations, which were usually performed by scraping or drilling, she said. "We have evidence of trepanation in this region that predates the Late Bronze Age, but this example at Megiddo is the earliest in this area of this type of surgery," she said.
Elite burial
The skeletons of the brothers (shown here in green and blue) were found in a tomb at Tel Megiddo in northern Israel, which was a Canaanite city-state in the Late Bronze Age. Their bones show both brothers suffered from debilitating diseases.
(Image credit: Kalisher et al., 2023, PLOS ONE, CC-BY 4.0)
Both brothers were buried with fine ceramic vessels and high-quality food offerings, suggesting they were of high social status, and their high status may have been one reason they lived for many years in spite of their debilitating conditions, Kalisher said.
Although Kalisher and her colleagues said the older man's status might have given him access to rare surgical procedures like trepanation, another expert suggested that the square hole indicates the incision was made after his death, possibly for ritualistic purposes.
"It is well accepted that cutting of the skulls which results in straight-line or square openings were most probably not done for therapeutic purposes," he told Live Science in an email. Studies have shown that although circular trepanations might have been done in an attempt to cure an ailment, that did not seem to be the case here, he added.
"The shape of the described trephination is square and the walls vertical," Hershkovitz said. "If this had been done while the individual was alive, it would have led to his immediate death."
Tom Metcalfe is a freelance journalist and regular Live Science contributor who is based in London in the United Kingdom. Tom writes mainly about science, space, archaeology, the Earth and the oceans. He has also written for the BBC, NBC News, National Geographic, Scientific American, Air & Space, and many others.
