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Category: Civilization

The bustling neighbourhoods at the heart of cities throughout the ages

The bustling neighbourhoods at the heart of cities throughout the ages

Michael E Smith writes: All cities have neighbourhoods. This may not sound like much of an observation, but it is in fact a powerful claim for archaeologists of early cities. We now know that neighbourhoods are the only true urban universal – a feature found in every city that has ever existed, past and present. Other seemingly ‘urban’ traits, from streets and big buildings to markets and specialists, are absent from many cities and urban traditions. But neighbourhoods are playing…

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An ancient solar calendar built by an unknown civilization

An ancient solar calendar built by an unknown civilization

Carly Cassella writes: Long before the Incas rose to power in Peru and began to celebrate their sun god, a little known civilization was building the earliest known astronomical observatory in the Americas. While not quite as old as sites like Stonehenge, these ancient ruins, known as Chankillo, are considered a “masterpiece of human creative genius“, holding unique features not seen anywhere else in the world. Based in the coastal desert of Peru, the archaeological site famously contains a row…

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Understanding planetary intelligence

Understanding planetary intelligence

Adam Frank, Sara Walker, and David Grinspoon write: Almost a century ago, the revolutionary idea of the biosphere gained a foothold in science. Defined as the collective activity of all life on Earth—the tapestry of actions of every microbe, plant, and animal—the biosphere had profound implications for our understanding of planetary evolution. The concept posits that life acts as a potent force shaping how the planet changes over time, on par with other geological systems like the atmosphere, hydrosphere (water),…

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How science is uncovering the secrets of Stonehenge

How science is uncovering the secrets of Stonehenge

Tim Adams writes: Among the many treasures in the British Museum’s forthcoming Stonehenge exhibition is a collection of carved and polished spherical stones, each about the size of a cricket ball. The stones are 5,000 years old and have mostly been found singly in Scotland. The most famous of the 400 or so discoveries is a beautiful polished black sphere from Towie, Aberdeenshire, with three bulbous surfaces, tactile as a miniature Henry Moore. The sphere is carved with precise geometric…

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Rare, isolated script invented from scratch holds clues to the evolution of writing

Rare, isolated script invented from scratch holds clues to the evolution of writing

Science Alert reports: A rare script from a language in Liberia has provided some new insights into how written languages evolve. “The Vai script of Liberia was created from scratch in about 1834 by eight completely illiterate men who wrote in ink made from crushed berries,” says linguistic anthropologist Piers Kelly, now at the University of New England, Australia. “Because of its isolation, and the way it has continued to develop up until the present day, we thought it might…

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Belonging among the beasts and the gods in Mayan cosmology

Belonging among the beasts and the gods in Mayan cosmology

Jessica Sequeira writes: Animals are everywhere in the Popol Vuh. They leap and lick and crawl and bite and squawk and hoot and screech and howl. They are considered sacred, not as disembodied beings in some faraway place, but in their coexistence with humans, day by day in the forests. The Sovereign and Quetzal Serpent, with its gorgeous blue-green plumage, birthed the world from a vast and placid ocean. The Popol Vuh provides the narrative of this creation of humankind…

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How a vanished ancient Greek city helps us think about disasters

How a vanished ancient Greek city helps us think about disasters

Guy D Middleton writes: One night nearly 2,500 years ago, the people of Helike, a city in the northern Peloponnese, were in their homes. Perhaps they were winding down with a glass of watered wine or already sleeping after spending the day about their business in the bustling town. Some had been busy at the market, selling or buying the produce from the local farms or purchasing goods from further afield. Some might have visited the famous Temple of Poseidon,…

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Wade Davis on the unraveling of America

Wade Davis on the unraveling of America

  Wade Davis writes: Never in our lives have we experienced such a global phenomenon. For the first time in the history of the world, all of humanity, informed by the unprecedented reach of digital technology, has come together, focused on the same existential threat, consumed by the same fears and uncertainties, eagerly anticipating the same, as yet unrealized, promises of medical science. In a single season, civilization has been brought low by a microscopic parasite 10,000 times smaller than…

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Stories of civilization collapse make for good television but bad archaeology

Stories of civilization collapse make for good television but bad archaeology

Guy D Middleton writes: There’s a common story of how the Maya civilisation was wiped out: they fell foul of unstoppable climate change. Several periods of extreme drought withered their crops and killed off thousands in their overpopulated cities. ‘There was nothing they could do or could have done. In the end, the food and water ran out – and they died,’ wrote Richardson Gill in 2007. The jungle reclaimed the cities with their palaces and pyramids until they were…

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How the extinction of ice age mammals may have forced us to invent civilisation

How the extinction of ice age mammals may have forced us to invent civilisation

Wikimedia Commons/Cloudordinary, CC BY-SA By Nick Longrich, University of Bath Why did we take so long to invent civilisation? Modern Homo sapiens first evolved roughly 250,000 to 350,000 years ago. But initial steps towards civilisation – harvesting, then domestication of crop plants – began only around 10,000 years ago, with the first civilisations appearing 6,400 years ago. For 95% of our species’ history, we didn’t farm, create large settlements or complex political hierarchies. We lived in small, nomadic bands, hunting…

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More than 140 Nazca Lines discovered in Peruvian desert

More than 140 Nazca Lines discovered in Peruvian desert

The New York Times reports: A huge carving of a monkey with its tail twirled in a spiral; vast, geometric images of a condor and a hummingbird; an immense spider — the 2,000-year-old Nazca Lines in Peru have awed and mystified modern viewers since they were first seen from the air last century. Now, 143 more images have been discovered, etched into a coastal desert plain about 250 miles southeast of Lima, the Peruvian capital. The Japanese researchers who found…

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DNA indicates how ancient migrations shaped South Asian languages and farming

DNA indicates how ancient migrations shaped South Asian languages and farming

Science News reports: A new DNA study of unprecedented size has unveiled ancient human movements that shaped the genetic makeup of present-day South Asians in complex ways. Those long-ago treks across vast grasslands and through mountain valleys may even have determined the types of languages still spoken in a region that includes what’s now India and Pakistan. The investigation addresses two controversial issues. First, who brought farming to South Asia? Genetic comparisons indicate that farming was either invented locally by…

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Surveying archaeologists across the globe reveals deeper and more widespread roots of the human age, the Anthropocene

Surveying archaeologists across the globe reveals deeper and more widespread roots of the human age, the Anthropocene

People have been modifying Earth – as in these rice terraces near Pokhara, Nepal – for millennia. Erle C. Ellis, CC BY-ND By Ben Marwick, University of Washington; Erle C. Ellis, University of Maryland, Baltimore County; Lucas Stephens, Max Planck Institute for the Science of Human History, and Nicole Boivin, Max Planck Institute for the Science of Human History Examples of how human societies are changing the planet abound – from building roads and houses, clearing forests for agriculture and…

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How Arab scholars preserved scientific texts serving as the foundations of modern knowledge

How Arab scholars preserved scientific texts serving as the foundations of modern knowledge

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In a review of Violet Moller’s new book, The Map of Knowledge: A Thousand-Year History of How Classical Ideas Were Lost and Found, Katie Hafner writes: While religion dictated the cultural winds of the Western world, ideas flowed freely through the Middle East, traversing religions and cultures. Knowledge began flowing into Baghdad from every direction as scholars translated Greek manuscripts into Arabic. Book production soared as texts were read aloud to roomfuls of scribes so that many copies could be…

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Living on Mars is a misguided fantasy

Living on Mars is a misguided fantasy

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Philip Ball writes: Who said this? “I’ve been having to say everywhere I go that there is no planet B, there is no escape hatch, there is no second Earth; this is the only planet we have.” If you’re a science fiction fan the answer might surprise you: it was the writer Kim Stanley Robinson, whose Mars trilogy is an ultimately utopian series of tales that describe the terraforming of Mars – planetary engineering to give it an Earth-like environment…

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Misreading the story of climate change and the Maya

Misreading the story of climate change and the Maya

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Stucco frieze from Placeres, Campeche, Mexico, Early Classic period, c. 250-600 AD. Wolfgang Sauber/Wikimedia, CC BY-SA By Kenneth Seligson, California State University, Dominguez Hills Carbon dioxide concentrations in Earth’s atmosphere have reached 415 parts per million – a level that last occurred more than three million years ago, long before the evolution of humans. This news adds to growing concern that climate change will likely wreak serious damage on our planet in the coming decades. While Earth has not been…

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