Wednesday, May 11, 2022

Livestock and dairying led to dramatic social changes in ancient Mongolia

 The movement of herders and livestock into the eastern steppe is of great interest to researchers, but few scholars have linked the introduction of herds and horses to the rise of complex societies.

Now, a new study in the journal PLOS ONE provides interdisciplinary support for connections between livestock dairying and the rise of social complexity in the eastern steppe. Using proteomic analysis of human dental calculus from sites in the Mongolian Altai, the researchers demonstrate a shift in dairy consumption over the course of the Bronze Age.

By tracking the consumption of dairy among populations in the Altai Mountains in Mongolia, researchers revealed the critical role of domesticated sheep, goats and cattle in ancient economies. The adoption of ruminant livestock eventually led to population growth, the establishment of community cemeteries and the construction of large monuments. While these pronounced changes occurred in tandem with the earliest evidence of horse dairying in Mongolia, the consumption of horse dairy remained a relatively novel practice until later periods.

Thus, the spread of herds into the Mongolian Altai resulted in immediate changes to human diets, with a delay in subsequent social and demographic transformations, said study lead author Alicia Ventresca Miller, assistant professor of anthropology at the University of Michigan.

"As we push back the dates of the introduction of livestock, we need to rethink the pace of social change, which may occur on much longer timescales," she said.

Ventresca Miller and colleagues from U-M and the Max Planck Institute for the Science of Human History in Germany extracted proteins from calculus samples to identify caseins and whey associated with ruminant and horse dairy. Results were interpreted in consultation with researchers from the National University of Mongolia and National Museum of Mongolia, in an effort to clarify how ancient societies changed after the adoption of domesticated livestock.

Dramatic social changes and monumental constructions were fueled by a long-term dependence on sheep, goats and cattle, Ventresca Miller says. This is supported by finds of mostly ruminant bones in large monumental Khirgisuurs in the Altai Mountains, while in other areas of Mongolia horse bone deposits have been identified along with ruminants.

"These new results might allow for a shift in our understanding of Bronze Age dynamics," said Tsagaan Turbat, professor of archaeology and anthropology at the National University of Mongolia.

Turbat believes that Deer Stone-Khirgisuur complexes, the most studied in the region, may have originated from Sagsai groups in the Altai Mountains.

The current study pushes back the earliest date of horse dairying in the eastern steppe associated with Sagsai burials to about 1350 B.C. As initial evidence of horse milk consumption is rare, this may have been a novelty since horses were an important feature of ritual life, the researchers say.



Tuesday, May 10, 2022

Complex human childbirth and cognitive abilities a result of walking upright



Birth simulation of Lucy 

IMAGE: BIRTH SIMULATION OF LUCY (AUSTRALOPITHECUS AFARENSIS) WITH THREE DIFFERENT FETAL HEAD SIZES. ONLY A BRAIN SIZE OF MAXIMUM 30 PERCENT OF THE ADULT SIZE (RIGHT) FITS THROUGH THE BIRTH CANAL. view more 

CREDIT: (PICTURE: MARTIN HÄUSLER, UZH)

During human birth, the fetus typically navigates a tight, convoluted birth canal by flexing and rotating its head at various stages. This complex process comes with a high risk of birth complications, from prolonged labor to stillbirth or maternal death. These complications were long believed to be the result of a conflict between humans adapting to walking upright and our larger brains.

Dilemma between walking upright and larger brains

Bipedalism developed around seven million years ago and dramatically reshaped the hominin pelvis into a real birth canal. Larger brains, however, didn’t start to develop until two million years ago, when the earliest species of the genus Homo emerged. The evolutionary solution to the dilemma brought about by these two conflicting evolutionary forces was to give birth to neurologically immature and helpless newborns with relatively small brains – a condition known as secondary altriciality.

A research group led by Martin Häusler from the Institute of Evolutionary Medicine at the University of Zurich (UZH) and a team headed up by Pierre Frémondière from Aix-Marseille University have now found that australopithecines, who lived about four to two million years ago, had a complex birth pattern compared to great apes. “Because australopithecines such as Lucy had relatively small brain sizes but already displayed morphological adaptations to bipedalism, they are ideal to investigate the effects of these two conflicting evolutionary forces,” Häusler says.

Typical ratio of fetal and adult head size

The researchers used three-dimensional computer simulations to develop their findings. Since no fossils of newborn australopithecines are known to exist, they simulated the birth process using different fetal head sizes to take into account the possible range of estimates. Every species has a typical ratio between the brain sizes of its newborns and adults. Based on the ratio of non-human primates and the average brain size of an adult Australopithecus, the researchers calculated a mean neonatal brain size of 180 g. This would correspond to a size of 110 g in humans.

For their 3D simulations, the researchers also took into account the increased pelvic joint mobility during pregnancy and determined a realistic soft tissue thickness. They found that only the 110 g fetal head sizes passed through the pelvic inlet and midplane without difficulty, unlike the 180 g and 145 g sizes. “This means that Australopithecus newborns were neurologically immature and dependent on help, similar to human babies today,” Häusler explains.

Prolonged learning key for cognitive and cultural abilities

The findings indicate that australopithecines are likely to have practiced a form of cooperative breeding, even before the genus Homo appeared. Compared to great apes, the brains developed for longer outside the uterus, enabling infants to learn from other members of the group. “This prolonged period of learning is generally considered crucial for the cognitive and cultural development of humans,” Häusler says. This conclusion is also supported by the earliest documented stone tools, which date back to 3.3 million years ago – long before the genus Homo appeared.

Literature:
Pierre Frémondière, Lionel Thollon, François Marchal, Cinzia Fornai, Nicole M. Webb, Martin Haeusler. Dynamic finite-element simulations reveal early origin of complex human birth pattern. Communications biology. 19 April 2022. DOI 10.1038/s42003-022-03321-z

Contact:

Prof. Dr. Martin Häusler

Institute of Evolutionary Medicine

University of Zurich

Phone +41 44

E-mail: martin.haeusler@iem.uzh.ch

Monday, May 9, 2022

Persia: Ancient Iran and the Classical World,

This spring, the Getty Villa Museum presents the exhibition Persia: Ancient Iran and the Classical World, the first major U.S. exhibition to highlight the relationship between the Classical World and Ancient Iran. In addition to the spectacular ancient works on view that explore the artistic and cultural connections between the rival powers of Iran, Greece, and Rome, the exhibition is supported by two innovative digital experiences: a 360-degree immersive film onsite at the Villa and a highly interactive online website at getty.edu/persepolis.
Gold lion plaque with wings, bordered by a gold circle.

Plaque with a Winged Lion-Griffin, Achaemenid, 500–330 BC. Gold, 1/8 × 4 1/8 × 4 1/4 in. The Oriental Institute of the University of Chicago, A28582, VEX 2021.1.109

Photo: Courtesy of the Oriental Institute of the University of Chicago

Apr 01, 2022

Social Sharing

Body Content

Ancient Iran, historically known as Persia, was the dominant nation of western Asia for over a millennium (about 550 BC–AD 650), with three native dynasties—the Achaemenids, Parthians, and Sasanians—controlling empires of unprecedented size and complexity.

Their principal military rivals throughout this period were the ancient Greeks and Romans, with whom they nevertheless enjoyed an active exchange in many aspects of architecture, religion, and court culture, as is demonstrated in the artworks they produced.

This spring, the Getty Villa Museum presents the exhibition Persia: Ancient Iran and the Classical World, the first major U.S. exhibition to highlight the relationship between the Classical World and Ancient Iran. In addition to the spectacular ancient works on view that explore the artistic and cultural connections between the rival powers of Iran, Greece, and Rome, the exhibition is supported by two innovative digital experiences: a 360-degree immersive film onsite at the Villa and a highly interactive online website at getty.edu/persepolis.

“The military rivalry between the ancient Persian empires that controlled much of the modern Middle East, and the Greeks and Romans of the eastern Mediterranean, determined the geopolitical map of Eurasia from Britain in the west to the border of India in the east for over a thousand years. In the early 5th century BC, against all odds, the Greeks repulsed a series of Achaemenid invasions that would have changed the cultural trajectory of Europe. Two and a half centuries later, Alexander the Great’s conquest of the East brought down the Achaemenids but also inspired an epochal cross-fertilization of the two cultures and traditions. The rise of the Romans as the major Mediterranean power from the 2nd century BC made a clash of titans inevitable. More than once the destinies of Europe and the Middle East hung on the outcome of mighty battles between the Roman emperors and the Parthian and Sasanian kings. Yet throughout all these violent vicissitudes, an active exchange of goods, languages, ideas, faiths, and artistic visions, reflecting a strong mutual respect, flourished in both directions. We see this most vividly in the imperial imagery celebrating their kings and rulers that was propagated by both the Persians and their Greek and Roman adversaries. As we ponder the most significant turning points in Eurasian history, there was perhaps no more momentous encounter than that between Persia and the Classical World,” says Timothy Potts, Maria Hummer-Tuttle and Robert Tuttle Director of the J. Paul Getty Museum.

“The many spectacular objects on view are extraordinary expressions of Persian political and cultural identity, many of them among the most famous masterpieces of Persian art. I hope this exhibition will convey how fruitful the intermingling of very different artistic and other cultural traditions was for both cultures, as can still be seen in aspects of our visual arts today.”

Potts adds: “I am especially pleased that visitors to the exhibition will also be able to explore some of the highlights of ancient Iranian art and architecture through digital technologies. Two innovative digital experiences—one an immersive on-site experience at the Villa; the other accessible online—will allow visitors to walk in the steps of a Persian dignitary through a digital reconstruction of the spectacular Achaemenid palace of Persepolis. These new tools, in partnership with the latest scholarship, can provide dynamic, interactive engagement with distant places and cultures, and we hope to expand their use in the future.”

The ancient works in the exhibition include royal sculpture, spectacular luxury objects, religious images, and historical documents assembled from major museums in the United States, Europe, and the Middle East.

“Many remarkable objects from Ancient Iran spanning approximately 1,200 years will be on display for the first time in the U.S.,” adds Jeffrey Spier, Anissa and Paul John Balson II Senior Curator of Antiquities at the J. Paul Getty Museum. “We are honored to present this exhibition in Southern California, home to the largest Iranian community outside Iran, and to leading academic centers dedicated to the study and appreciation of Iranian history, art, and culture.”

Persia: Ancient Iran and the Classical World is the second in the Getty Museum’s program The Classical World in Context, a series of exhibitions and related publications that explore the relationship between the Classical world of Greece and Rome and their neighboring cultures from north Africa and the Middle East through to Central Asia. The inaugural exhibition in the series was Beyond the Nile: Egypt and the Classical World in 2018. The series will continue in 2024 with Thrace and the Classical World.

The Persian king Cyrus the Great and his Achaemenid successors established the largest and most powerful empire of the ancient world. Their significance in history, however, lies not just in territorial or military might but in their creation of a successful model for centralized rule over multiple peoples with different customs, religions, laws, and languages, allowing diverse cultures to coexist and thrive within a unified state structure. Political institutions and artistic ideas introduced by the Achaemenid Persians considerably influenced later empires, providing a foundation for the Seleucid Greeks, Parthians, Romans, and Sasanians.

The first part of the exhibition examines the establishment of the Achaemenid Empire in mid-6th century BC, when Cyrus the Great captured western Asia Minor (in present-day Turkey) and conquered the Greek settlements there. Achaemenid sculpture, silver vessels, and jewelry are on display alongside Greek depictions of the Persian wars (490–79 BC). The Greek cities long established on the western coast of Asia Minor and the native people in nearby Lydia, Caria, and Lycia at first resisted Persian demands for submission but eventually came to terms with living in a great empire. These regions produced works both in Greek and Persian style, reflecting the complex cultural influences around them.

The second section of the exhibition begins around 330 BC, following Alexander the Great’s conquest of the Achaemenid Empire. The victorious Greeks inherited rule over Iran and much of the ancient Middle East for some time, but in the 3rd century BC another Persian dynasty, the Parthians, emerged and soon became the dominant state of the Near East, remaining in power for nearly five hundred years. It was also the primary rival of Rome, which replaced the Greeks as the new superpower of the Mediterranean, with the borderlands of Mesopotamia being a frequent battleground. The Parthian art on view in the exhibition, including luxury silver drinking vessels made for the Parthian aristocracy, is highly eclectic, displaying a mixture of Greek, Mesopotamian, Achaemenid, and nomadic Iranian influences.

The final section of the exhibition is devoted to the Sasanian Empire, which, beginning in AD 224, created a new Iranian self-image with distinctive trappings of kingship and splendid royal art, a more centralized administration, the founding of many cities, and an aggressive military policy. Despite near constant warfare, the Romans and Sasanians recognized the advantages of maintaining a balance of power and were often allied in fighting mutual enemies until the Arab conquest in AD 651. On display are palace decorations and Sasanian silver plates and vessels ornamented with depictions of royal court life, along with Late Roman and Byzantine silver that served similar purposes.

The exhibition is supported by a fully immersive film that transports visitors into the lavish palaces and audience halls of Persepolis during its height as the ceremonial capital of the Achaemenid Empire. The five-minute “Palace Experience” takes the audience along the route ancient visitors would have taken through the capital, from the Gate of All Nations to the Apadana and into other structures within the palaces and audience halls. Located in a first-floor gallery at the Villa, the film provides a 360-degree HD experience employing the same new media technology used by Disney’s The Mandalorian. (“The Palace Experience” requires a separate advance, timed ticket, which is free and available onsite.)

A separate online digital experience created in conjunction with the exhibition allows visitors the opportunity to soar over a 3-D re-creation of Persepolis and take an interactive “walk” through the palaces, terraces, audience halls, and chambers of the massive complex in southern Iran, enlivening the many relief sculptures and architecture with their original colors and textures.

As visitors scroll their way through the rooms, they can zoom in on 3-D images of the coins, vessels, inscriptions, and reliefs that would have been used in these spaces. This highly interactive web experience will be available in eight languages, including Persian, Arabic, Hindi, Chinese (simplified and traditional), Spanish, French, and English, bringing ancient Persepolis to life for visitors around the world.[The online experience is available now at getty.edu/persepolis.

Persia: Ancient Iran and the Classical World is on display at the Getty Villa Museum from April 6 through August 8, 2022. The exhibition is curated by Timothy Potts, Jeffrey Spier, and Sara E. Cole, assistant curator of antiquities at the J. Paul Getty Museum. A catalogue written by the curators accompanies the exhibition. Dr. Ali Mousavi, adjunct assistant professor of Iranian archaeology, and Dr. Farzad Amoozegar, director, Iranian music program and Persian music ensemble at UCLA, were consultants on the two digital initiatives.“The military rivalry between the ancient Persian empires that controlled much of the modern Middle East, and the Greeks and Romans of the eastern Mediterranean, determined the geopolitical map of Eurasia from Britain in the west to the border of India in the east for over a thousand years. In the early 5th century BC, against all odds, the Greeks repulsed a series of Achaemenid invasions that would have changed the cultural trajectory of Europe. Two and a half centuries later, Alexander the Great’s conquest of the East brought down the Achaemenids but also inspired an epochal cross-fertilization of the two cultures and traditions. The rise of the Romans as the major Mediterranean power from the 2nd century BC made a clash of titans inevitable. More than once the destinies of Europe and the Middle East hung on the outcome of mighty battles between the Roman emperors and the Parthian and Sasanian kings. Yet throughout all these violent vicissitudes, an active exchange of goods, languages, ideas, faiths, and artistic visions, reflecting a strong mutual respect, flourished in both directions. We see this most vividly in the imperial imagery celebrating their kings and rulers that was propagated by both the Persians and their Greek and Roman adversaries. As we ponder the most significant turning points in Eurasian history, there was perhaps no more momentous encounter than that between Persia and the Classical World,” says Timothy Potts, Maria Hummer-Tuttle and Robert Tuttle Director of the J. Paul Getty Museum.

“The many spectacular objects on view are extraordinary expressions of Persian political and cultural identity, many of them among the most famous masterpieces of Persian art. I hope this exhibition will convey how fruitful the intermingling of very different artistic and other cultural traditions was for both cultures, as can still be seen in aspects of our visual arts today.”

Potts adds: “I am especially pleased that visitors to the exhibition will also be able to explore some of the highlights of ancient Iranian art and architecture through digital technologies. Two innovative digital experiences—one an immersive on-site experience at the Villa; the other accessible online—will allow visitors to walk in the steps of a Persian dignitary through a digital reconstruction of the spectacular Achaemenid palace of Persepolis. These new tools, in partnership with the latest scholarship, can provide dynamic, interactive engagement with distant places and cultures, and we hope to expand their use in the future.”

The ancient works in the exhibition include royal sculpture, spectacular luxury objects, religious images, and historical documents assembled from major museums in the United States, Europe, and the Middle East.

“Many remarkable objects from Ancient Iran spanning approximately 1,200 years will be on display for the first time in the U.S.,” adds Jeffrey Spier, Anissa and Paul John Balson II Senior Curator of Antiquities at the J. Paul Getty Museum. “We are honored to present this exhibition in Southern California, home to the largest Iranian community outside Iran, and to leading academic centers dedicated to the study and appreciation of Iranian history, art, and culture.”

Persia: Ancient Iran and the Classical World is the second in the Getty Museum’s program The Classical World in Context, a series of exhibitions and related publications that explore the relationship between the Classical world of Greece and Rome and their neighboring cultures from north Africa and the Middle East through to Central Asia. The inaugural exhibition in the series was Beyond the Nile: Egypt and the Classical World in 2018. The series will continue in 2024 with Thrace and the Classical World.

The Persian king Cyrus the Great and his Achaemenid successors established the largest and most powerful empire of the ancient world. Their significance in history, however, lies not just in territorial or military might but in their creation of a successful model for centralized rule over multiple peoples with different customs, religions, laws, and languages, allowing diverse cultures to coexist and thrive within a unified state structure. Political institutions and artistic ideas introduced by the Achaemenid Persians considerably influenced later empires, providing a foundation for the Seleucid Greeks, Parthians, Romans, and Sasanians.

The first part of the exhibition examines the establishment of the Achaemenid Empire in mid-6th century BC, when Cyrus the Great captured western Asia Minor (in present-day Turkey) and conquered the Greek settlements there. Achaemenid sculpture, silver vessels, and jewelry are on display alongside Greek depictions of the Persian wars (490–79 BC). The Greek cities long established on the western coast of Asia Minor and the native people in nearby Lydia, Caria, and Lycia at first resisted Persian demands for submission but eventually came to terms with living in a great empire. These regions produced works both in Greek and Persian style, reflecting the complex cultural influences around them.

The second section of the exhibition begins around 330 BC, following Alexander the Great’s conquest of the Achaemenid Empire. The victorious Greeks inherited rule over Iran and much of the ancient Middle East for some time, but in the 3rd century BC another Persian dynasty, the Parthians, emerged and soon became the dominant state of the Near East, remaining in power for nearly five hundred years. It was also the primary rival of Rome, which replaced the Greeks as the new superpower of the Mediterranean, with the borderlands of Mesopotamia being a frequent battleground. The Parthian art on view in the exhibition, including luxury silver drinking vessels made for the Parthian aristocracy, is highly eclectic, displaying a mixture of Greek, Mesopotamian, Achaemenid, and nomadic Iranian influences.

The final section of the exhibition is devoted to the Sasanian Empire, which, beginning in AD 224, created a new Iranian self-image with distinctive trappings of kingship and splendid royal art, a more centralized administration, the founding of many cities, and an aggressive military policy. Despite near constant warfare, the Romans and Sasanians recognized the advantages of maintaining a balance of power and were often allied in fighting mutual enemies until the Arab conquest in AD 651. On display are palace decorations and Sasanian silver plates and vessels ornamented with depictions of royal court life, along with Late Roman and Byzantine silver that served similar purposes.

The exhibition is supported by a fully immersive film that transports visitors into the lavish palaces and audience halls of Persepolis during its height as the ceremonial capital of the Achaemenid Empire. The five-minute “Palace Experience” takes the audience along the route ancient visitors would have taken through the capital, from the Gate of All Nations to the Apadana and into other structures within the palaces and audience halls. Located in a first-floor gallery at the Villa, the film provides a 360-degree HD experience employing the same new media technology used by Disney’s The Mandalorian. (“The Palace Experience” requires a separate advance, timed ticket, which is free and available onsite.)

A separate online digital experience created in conjunction with the exhibition allows visitors the opportunity to soar over a 3-D re-creation of Persepolis and take an interactive “walk” through the palaces, terraces, audience halls, and chambers of the massive complex in southern Iran, enlivening the many relief sculptures and architecture with their original colors and textures.

As visitors scroll their way through the rooms, they can zoom in on 3-D images of the coins, vessels, inscriptions, and reliefs that would have been used in these spaces. This highly interactive web experience will be available in eight languages, including Persian, Arabic, Hindi, Chinese (simplified and traditional), Spanish, French, and English, bringing ancient Persepolis to life for visitors around the world.[The online experience is available now at getty.edu/persepolis.

Persia: Ancient Iran and the Classical World is on display at the Getty Villa Museum from April 6 through August 8, 2022. The exhibition is curated by Timothy Potts, Jeffrey Spier, and Sara E. Cole, assistant curator of antiquities at the J. Paul Getty Museum. A catalogue written by the curators accompanies the exhibition. Dr. Ali Mousavi, adjunct assistant professor of Iranian archaeology, and Dr. Farzad Amoozegar, director, Iranian music program and Persian music ensemble at UCLA, were consultants on the two digital initiatives.