New Evidence Rewrites the Origins of the Dead Sea Scrolls
A scholar from the Netherlands used AI to determine that the Dead Sea Scrolls may be older than previously believed.
The new AI model pairs handwriting data with radiocarbon dating information to date ancient manuscripts.
In the future, scientists hope the model will be useful in dating other mysterious ancient texts
Dating ancient artifacts is very difficult. Experts have a number of techniques they can use to get close, but there are limitations that often can't be overcome without additional information. That said, sometimes you get lucky, like the researchers investigating the famous Dead Sea Scrolls did when they realized that the author wrote the dates of creation directly on several of the pages.
However, not every scroll was labeled, and as a result, the undated Dead Sea Scrolls have been much harder for scientists to pin down. But when new technologies arise, things can change.
According to a new study—in which scientists used AI modeling to study handwriting styles across ancient manuscripts with known dates—some of the undated Dead Sea Scrolls may be older than previously believed. Mladen Popovic (from the University of Groningen in the Netherlands) and his research team claim that their work not only re-dates some Dead Sea Scrolls, but could open a new way to place undated manuscripts on the timeline of ancient history. The team published their findings in the open-access journal PLOS One.
'It is very exciting to set a significant step in solving the dating problem of the Dead Sea Scrolls and also creating a new tool that could be used to study other partially dated manuscripts from history,' the authors wrote in a statement. 'This would not have been possible without the collaboration between so many different scientific disciplines.'
The process started with a bounty of ancient texts used to help build datasets. The team parsed through historic manuscripts from various sites in modern-day Israel and the West Bank and used radiocarbon dating to estimate the ages of the documents. The team then trained a machine-learning model to understand the handwriting styles of each document in direct relation to the historic date of the manuscript.
The AI model—dubbed Enoch, after the prominent biblical figure—then merged the two datasets. The goal of the work is to be able to 'objectively determine an approximate age range' of a manuscript based solely on the handwriting style on the document.
During testing, the scholars said that Enoch's age estimates for the 135 Dead Sea Scrolls were 'realistic' 79 percent of the time, and non-realistic 21 percent of the time (non-realistic here meaning significantly too old, significantly too young, or indecisive).
The Enoch model, paired with radiocarbon dating, estimates older ages for 'many of the Dead Sea Scrolls' than traditional handwriting analysis methods. The authors said that more data and further research could help pinpoint the timelines.
'With the Enoch tool we have opened a new door into the ancient world, like a time machine, that allows us to study the hands that wrote the Bible,' the authors wrote in the statement, 'especially now that we have established, for the first time, that two biblical scroll fragments come from the time of their presumed authors.'
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CNN
4 days ago
- CNN
Increasing your walking cadence can improve mobility
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Individuals who regularly incorporate walking exercises in their routines also experience longevity, which is living longer and better lives. Active older adults were 28% less likely to become disabled and were able to perform day-to-day tasks with little to no assistance, according to a 2020 study. Other benefits include maintenance of healthy weight, reduced high blood pressure, decreased risk for type 2 diabetes and a stronger musculoskeletal system. 'Walking has been associated with the same type of health outcomes as exercise activities (e.g., risk of mortality, cancer, cardiovascular diseases, improved cognitive ageing),' said Rayane Haddadj, a doctoral candidate in the department of public health and nursing at the Norwegian University of Science and Technology, in an email. He was not associated with the study. 'Advantages of walking are that it is a simple, low cost, and accessible activity that can be promoted widely to reduce the burden of various diseases and conditions,' he added. Increasing your walking pace can lower the risk of heart rhythm abnormalities, such as atrial fibrillation, and walking for longer periods of time can have health benefits, such as reducing back pain. 'Even small increases in daily activity can make a difference. Walking more could therefore be a simple yet powerful way to reduce risk of chronic low back pain and other diseases,' Haddadj said. 'I think one of the hardest parts when you're giving public health advice, when you're talking about walking, in particular, is what pace to walk at,' Rubin said. Previous methods used to help older adults follow a moderate intensity walking pace, such as the talk test or tracking heart rate, can be subjective and difficult to track pace or cadence accurately. 'The easiest way is, actually, you can use a metronome on your phone,' Rubin said. 'It's called rhythmic auditory cueing.' To do this, start by walking at your normal pace for 30 minutes and time it with the metronome. Once you've established a rhythm, you can gradually increase your pace by five or 10 steps per minute. 'Some people use music to do that. Music is actually a little harder, unless you have a trained ear to really be able to identify the beat,' Rubin said. While keeping this pace, older adults could also benefit from practicing conscious breathing, such as breathing through their nose, said CNN fitness contributor Dana Santas, a certified strength and conditioning specialist and mind-body coach in professional sports. Nasal breathing, which is when you inhale through your nose and exhale through your mouth, can help lower blood pressure and improve heart rate variability, according to a 2023 study. Doing so can help prevent development of hypertension. It's also important that you maintain good form while walking, such as standing tall and swinging your arms. It will prevent backaches, make it easy to breathe and keep you balanced. 'Walking is a full body movement. It is not just about your lower body. It's not just one step in front of the one foot in front of the other,' Santas said. 'Your arm swing is a huge part involved in the mechanics of walking. So, you want to have an arm swing that's coordinated with your foot movement, so it's opposing.' Sign up for CNN's Fitness, But Better newsletter series. Our seven-part guide will help you ease into a healthy routine, backed by experts.


CNN
4 days ago
- CNN
Increasing your walking cadence can improve mobility
Are you not as strong and physically capable as you would like? Around 7% to 12% of Americans 65 and older are considered frail. That's when at least three of the following symptoms are true, according to Johns Hopkins Medicine: unintentional weight loss, reduced strength, exhaustion, low activity levels and a slow pace. Frailty often makes it difficult for older adults to complete day-to-day tasks. But there may be something they can do about it. Increasing a person's walking cadence by 14 steps per minute was associated with a 10% increase in functional capacity in prefrail and frail older adults, according to a study published Wednesday in the journal PLOS One. Prefrailty is the period before frailty, where older adults may experience higher risk of physical impairment, cognitive decline, nutritional deficiencies and socioeconomic disadvantages. 'What we ended up finding was that those who are able to walk faster, particularly at a cadence 14 steps per minute faster than their usual pace, were more likely to improve in their mobility or endurance or function,' said Dr. Daniel Rubin, the study's lead author. 'In particular, we were targeting to try to really improve (people's) mobility and their function, just because prefrail and frail older adults tend to be a little bit more limited, at least in the concept of physical frailty,' added Rubin, associate professor of anesthesia and critical care at the University of Chicago. The study was a secondary data analysis of a primary trial that looked at walking intervention in retirement communities and took place over a span of 36 weeks. Whether or not an older adult is frail, mobility is still an important part of healthy aging. By practicing easy strength-training moves, such as walking, you can improve your strength and combat frailty, experts say. Individuals who regularly incorporate walking exercises in their routines also experience longevity, which is living longer and better lives. Active older adults were 28% less likely to become disabled and were able to perform day-to-day tasks with little to no assistance, according to a 2020 study. Other benefits include maintenance of healthy weight, reduced high blood pressure, decreased risk for type 2 diabetes and a stronger musculoskeletal system. 'Walking has been associated with the same type of health outcomes as exercise activities (e.g., risk of mortality, cancer, cardiovascular diseases, improved cognitive ageing),' said Rayane Haddadj, a doctoral candidate in the department of public health and nursing at the Norwegian University of Science and Technology, in an email. He was not associated with the study. 'Advantages of walking are that it is a simple, low cost, and accessible activity that can be promoted widely to reduce the burden of various diseases and conditions,' he added. Increasing your walking pace can lower the risk of heart rhythm abnormalities, such as atrial fibrillation, and walking for longer periods of time can have health benefits, such as reducing back pain. 'Even small increases in daily activity can make a difference. Walking more could therefore be a simple yet powerful way to reduce risk of chronic low back pain and other diseases,' Haddadj said. 'I think one of the hardest parts when you're giving public health advice, when you're talking about walking, in particular, is what pace to walk at,' Rubin said. Previous methods used to help older adults follow a moderate intensity walking pace, such as the talk test or tracking heart rate, can be subjective and difficult to track pace or cadence accurately. 'The easiest way is, actually, you can use a metronome on your phone,' Rubin said. 'It's called rhythmic auditory cueing.' To do this, start by walking at your normal pace for 30 minutes and time it with the metronome. Once you've established a rhythm, you can gradually increase your pace by five or 10 steps per minute. 'Some people use music to do that. Music is actually a little harder, unless you have a trained ear to really be able to identify the beat,' Rubin said. While keeping this pace, older adults could also benefit from practicing conscious breathing, such as breathing through their nose, said CNN fitness contributor Dana Santas, a certified strength and conditioning specialist and mind-body coach in professional sports. Nasal breathing, which is when you inhale through your nose and exhale through your mouth, can help lower blood pressure and improve heart rate variability, according to a 2023 study. Doing so can help prevent development of hypertension. It's also important that you maintain good form while walking, such as standing tall and swinging your arms. It will prevent backaches, make it easy to breathe and keep you balanced. 'Walking is a full body movement. It is not just about your lower body. It's not just one step in front of the one foot in front of the other,' Santas said. 'Your arm swing is a huge part involved in the mechanics of walking. So, you want to have an arm swing that's coordinated with your foot movement, so it's opposing.' Sign up for CNN's Fitness, But Better newsletter series. Our seven-part guide will help you ease into a healthy routine, backed by experts.
Yahoo
10-07-2025
- Yahoo
Ancient donkey sacrifice ritual unearthed in Israel sheds light on Egyptian trade links
The donkeys, found buried under a Bronze Age house in ancient Gath, near Tell es-Safi, were determined to have originated from ancient Egypt. A team of archaeologists has made a groundbreaking discovery in Israel, uncovering the remains of four donkeys that were ritually sacrificed over 4,500 years ago. The donkeys, found buried under a Bronze Age house in ancient Gath, near Tell es-Safi, around 20 km. northwest of Hebron, were determined to have originated from ancient Egypt. According to a new study published in the journal PLOS One, the donkeys were likely used for agricultural labor and trade, and their sacrifice may have been a display of wealth and social status. The researchers found that the donkeys were all female, in their prime age, and had been buried with their legs tied together. The discovery of the donkeys' remains has shed new light on the ritual practices of the ancient Canaanites, who inhabited the region during the Early Bronze Age III (circa 2900 to 2550 BCE). The researchers believe that the donkeys' Egyptian origin may indicate that their owners were merchants and traders who had connections with Egypt. Donkey remains have been consistently found at ancient Gath. After finding a decapitated donkey in 2010, with its head having been 'fully cut off and carefully placed on the abdomen facing in the opposite direction' according to the study, researchers continued searching for other donkeys in the area. Using chemical analysis and testing isotopes and the donkey's tooth enamel, researchers determined the donkey was originally from the Nile Valley. These results were also published in PLOS One in 2016. Researchers added that the choice to sacrifice a donkey, rather than any other animal, at the time was likely a sign of power and wealth, based on the demand for the animal in such a critical transportation role. Donkeys and similar animals were used in the ancient world primarily for hard agricultural labor. This included, but was not limited to, plowing and pulling heavy loads, as well as transportation of goods. These donkeys were also female, which was particularly valuable, and were believed to be replaceable by the sacrificing parties, according to the recently published study. All of their skulls pointed eastward, and their front and back legs had been tied together. Finding the four sacrificial animals depicts the mules' vital roles in both ritual practices and the economy. 'This finding highlights the importance of donkeys in the ancient world, not only for economic and trade purposes but also for ritual practices,' Elizabeth Arnold, an anthropologist and environmental archaeologist at Grand Valley State University in Michigan, told LiveScience. The researchers used isotopic analysis to help determine the origin of the donkeys, and the results revealed that they had lived in the Nile Valley. This discovery suggests that the donkeys were brought to ancient Gath from Egypt, likely as part of a trade or economic exchange. The study's findings provide a fascinating glimpse into the lives of ancient animals and their role in human society. As the researchers continue to study the remains of the donkeys, they hope to learn more about the complex relationships between humans and animals in the ancient world.