Enlarge / Three female skeletons found in a Neolithic storage pit in France show signs of ritualistic human sacrifice. (credit: . Beeching/Ludes et al., 2024)

Archaeologists have discovered the remains of two women in a Neolithic tomb in France, with the positioning of the bodies suggesting they may have been ritualistically murdered by asphyxia or self-strangulation, according to a recent paper published in the journal Science Advances.

(WARNING: graphic descriptions below.)

France's Rhône Valley is home to several archaeological sites dating to the end of the Middle Neolithic period (between 4250 and 3600/3500 BCE in the region); the sites include various storage silos, broken grindstones, imported ceramics, animal remains (both from communal meals and sacrifices), and human remains deposited in sepulchral pits. Saint-Paul-Trois-Châteaux is one such site.

Enlarge / The cranial remains of Vittrup Man, who was bludgeoned to death and tossed in a peat bog between 3300-3100 BCE. (credit: Stephen Freiheit via Fischer A., et al./PLoS ONE)

In 1915, peat diggers recovered the fragmented skeletal remains of a man with a severely fractured skull in a peat bog near the village of Vittrup in Denmark. The remains were kept in a museum for the next century, but scientists have now conducted an in-depth analysis of the remains using a variety of techniques to learn more about so-called Vittrup Man's life and violent death. They described their findings in a recent paper published in the journal PLoS ONE—including the surprising fact that Vittrup Man grew up in a coastal foraging community along the Scandinavian coast before his murder as an adult in a farming culture in Neolithic Denmark.

Vittrup Man is one of numerous " bog bodies " unearthed from peat bogs in northwestern Europe. These are human cadavers that have been naturally preserved, and frequently mummified, by the unique chemistry of the bogs. As peat ages it releases humic acid, which has a pH level similar to vinegar. The bog bodies are basically pickled, and decomposition is dramatically slowed because of the anaerobic conditions of the bog. The best-preserved bog bodies are those that were put there during the winter or early spring when the water is very cold—less than 4° Celsius (39° F), i.e., too cold for bacteria to thrive—because the bog acids were able to saturate the tissues before decay could begin.

Peat has been a common fuel source since the Iron Age, and there are records of peat diggers coming across bog bodies dating back to 1640 in Germany. Bog bodies became of interest to antiquarians in the 19th century and archaeologists in the 20th century. One of the most famous examples is Tollund Man , a bog body found in the 1950s and dating back to the 5th century BCE. Tollund Man was so exquisitely mummified that he was originally mistaken for a recent murder victim, although only the head was preserved for posterity; the rest of the body was allowed to desiccate, given the less advanced state of preservation techniques in the 1950s.

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There's rarely time to write about every cool science-y story that comes our way. So this year, we're once again running a special Twelve Days of Christmas series of posts, highlighting one science story that fell through the cracks in 2020, each day from December 25 through January 5. Today: Archaeologists found two stone engravings in Jordan and Saudi Arabia that may represent the oldest architectural plans for desert kites.

During the 1920s, aerial photographs revealed the presence of large kite-shaped stone wall mega-structures in deserts in Asia and the Middle East that most archaeologists believe were used to herd and trap wild animals. More than 6,000 of these "desert kites" have been identified as of 2018, although very few have been excavated. Archaeologists found two stone engravings—one in Jordan, the other in Saudi Arabia—that they believe represent the oldest architectural plans for these desert kites, according to a May paper published in the journal PLoS ONE.

"The discovery of these very ancient representations highlights the question of the methods used by kite builders," the authors wrote. "Kites are large material structures that could not be designed without what we call today planning. The ability to transpose large spaces into a small two-dimensional surface represents a milestone in intelligent behavior. Such structures are visible as a whole only from the air, yet this calls for the representation of space in a way not seen at this time."

Enlarge / Spy satellite images taken by the CIA during the Cold War have revealed hundreds of Roman forts across the Fertile Crescent. (credit: J. Casana et al./US Geological Survey)

Back in the early days of aerial archaeology , a French Jesuit priest named Antoine Poidebard flew a biplane over the northern Fertile Crescent to conduct one of the first aerial surveys. He documented 116 ancient Roman forts spanning what is now western Syria to northwestern Iraq and concluded that they were constructed to secure the borders of the Roman Empire in that region.

Now, anthropologists from Dartmouth have analyzed declassified spy satellite imagery dating from the Cold War, identifying 396 Roman forts, according to a recent paper published in the journal Antiquity. And they have come to a different conclusion about the site distribution: the forts were constructed along trade routes to ensure the safe passage of people and goods.

Poidebard is a fascinating historical figure. A former World War I pilot, he later became a priest and joined the French Levant forces, helping pioneer the use of aerial photography as an archaeological surveying tool to discover and record sites of interest. (Previously, hot air balloons, scaffolds, or attaching cameras to kites were the primary means of gaining aerial context.) For his mapping missions, Poidebard clocked thousands of hours flying over Syria, as well as Algeria and Tunisia along the Mediterranean coast. He published his catalog of ancient Roman forts in his 1934 book, The Trace of Rome in the Syrian Desert , including some of the largest and best-known sites, including Sura, Resafa, and Ain Sinu.

Enlarge / Detail from left panel of the the Melun Diptych (circa 1455) by medieval French painter and miniaturist Jean Fouquet. The strangely shaped rock in the lower right hand corner is most likely a Stone Age hand ax, a recent analysis concluded. (credit: Public domain)

Around 1455, a medieval French painter and miniaturist named Jean Fouquet painted a small diptych with two panels, one of which depicts St. Stephen holding a strangely shaped stone—usually interpreted as a symbol of the saint's martyrdom by stoning. A new analysis by researchers from Dartmouth University and the University of Cambridge has concluded that the stone depicted in the so-called Melun Diptych is most likely a prehistoric stone hand ax, according to a recent paper published in the Cambridge Archaeological Journal.

Originally housed in the Collegiate Church of Notre-Dame in Melun in northwest France, the diptych is painted in oil. The left panel depicts Etienne Chevalier , who served as treasurer to King Charles VII , clad in a crimson robe while kneeling in prayer. The figure to his right is St. Stephen, Chevalier's patron saint, in dark blue robes, holding a book in his left hand with the mysterious jagged rock resting on it, while his right arm drapes across Chevalier's shoulder. The right panel depicts the Madonna breastfeeding the Christ Child, possibly a portrait of the king's mistress Agnes Sorel , or possibly the king's wife Catherine Bude.

The two panels were once connected by a hinge, with a small medallion believed to be a mini-portrait of Fouquet as a kind of signature (he otherwise never signed his work). By 1775, the Collegiate Church was in dire need of funds for a restoration and sold the diptych, breaking it apart. The left panel is now housed at the Staatliche Museen in Berlin, while the right panel belongs to the Royal Museum of Fine Arts in Antwerp, Belgium. As for the medallion, it's now part of the Louvre's collection in Paris.

Enlarge / Wooden mallet and esparto sandals from Cueva de los Murciélagos in Spain dated to the Neolithic period, 6,200 years ago. (credit: MUTERMUR project)

In the 19th century, miners in southern Spain unearthed a prehistoric burial site in a cave containing some 22 pairs of ancient sandals woven out of esparto (a type of grass). The latest radiocarbon dating revealed that those sandals could be 6,200 years old—centuries older than similar footwear found elsewhere around the world, according to a new paper published in the journal Science Advances. The interdisciplinary team analyzed 76 artifacts made of wood, reeds, and esparto, including basketry, cords, mats, and a wooden mallet. Some of the basketry turned out to be even older than the sandals, providing the first direct evidence of basketry weaving among the hunter-gatherers and early farmers of the region.

Organic plant-based materials rarely survive the passage of thousands of years, but when they do, archaeologists can learn quite a bit about the culture in which they were produced. For example, last year we reported on the world's oldest known pants, produced in China around 3,000 years ago. With the help of an expert weaver—who created a replica of the pants—archaeologists unraveled the design secrets behind the 3,000-year-old wool trousers that were part of the burial outfit of a warrior now called Turfan Man, who died between 1000 and 1200 BCE in Western China. To make them, ancient weavers combined four techniques to create a garment specially engineered for fighting on horseback, with flexibility in some places and sturdiness in others.

A local landowner discovered Cueva de los Murciélagos ("Cave of the bats") in 1831, and made good use of all that bat guano in the main chamber to fertilize his land. At some point it was also used to house goats, but then the discovery of galena turned the site into a mining operation. As the miners removed blocks to access the vein, they opened up a gallery containing several partially mummified corpses, along with an array of baskets, wooden tools, and other artifacts. Most of the plant-based artifacts were either burned or given to the local villagers.

In 1674, a priest named Francisco de Burgoa published his account of visiting the ruins of the Zapotec city of Mitla in what is now Oaxaca in southern Mexico. He described a vast underground temple with four interconnected chambers, the last of which featured a stone door leading into a deep cavern. The Zapotec believed this to be the entrance to the underworld known as Lyobaa ("place of rest"). Burgoa claimed that Spanish missionaries who explored the ruins sealed all entrances to the temple, and local lore has long held that the entrance lies under the main altar of a Catholic church built over the ruins.

An international team of archaeologists recently announced that they found evidence for this fabled underground labyrinth under the ruins—right where the legends said it should be—after conducting scans of the site using ground penetrating radar (GPR), electrical resistivity tomography (ERT), and seismic noise tomography (SNT).  The team also found evidence of an earlier construction stage of a palace located in another part of the site.

Mitla is one of the most significant archaeological sites in Oaxaca Valley. It was an important religious center, serving as a sacred burial site—hence its name, which derives from Mictlan ("place of the dead" or "underworld"). The unique structures at Mitla feature impressively intricate mosaics and geometric designs on all the tombs, panels, friezes, and walls, made with small polished stone pieces fitted together without using mortar.

Enlarge / Examples of engravings discovered in the Roche-Cotard Cave in France. (left) A "circular panel" with arch-shaped tracings. (right) A "wavy panel" with two contiguous tracings forming sinuous lines. (credit: Jean-Claude Marquet, CC-BY 4.0 )

Archaeologists have concluded that a series of engravings discovered on a cave wall in France were made by Neanderthals using their fingers, some 57,000 years ago. They could be the oldest such marks yet found and further evidence that Neanderthals' behavior and activities were far more complex and diverse than previously believed, according to a new paper published in the journal PLoS ONE.

As Kiona Smith previously reported for Ars, evidence that Neanderthals could think symbolically, create art, and plan a project has been piling up for the last several years. For instance, about 50,000 years ago, Neanderthals in France spun plant fibers into thread . In Central Italy, between 55,000 and 40,000 years ago, Neanderthals used birch tar to hold their hafted stone tools in place , which required a lot of planning and complex preparation. In 2016, we reported on archaeologists' announcement that a Neanderthal group wrested hundreds of stalagmites from the floor of a cave inside Bruniquel Cave in Southern France to build elaborate circular structures, their work illuminated only by firelight.

Archaeologists have also found several pieces of bone and rock from the Middle Paleolithic—the time when Neanderthals had most of Europe to themselves—carved with geometric patterns like cross-hatches, zigzags, parallel lines , and circles. That might mean that the ability to use symbols didn’t originate with modern humans.