Ancient tomb with strange owl sculpture Mexico’s ‘most significant’ find in decade

A small bronze cross recently discovered in western Brandenburg is transforming archaeologists’ understanding of how Christianity spread through northeastern Germany in the early Middle Ages. Dating to the 10th or early 11th century, the object is notable not for its size, but for an extraordinary archaeological link that ties it directly to a casting mold unearthed more than 40 years ago.

The wheel-shaped cross was found in the Havelland region by Juliane Rangnow, a certified volunteer heritage guardian working under official authorization. When experts at the Brandenburg State Office for Heritage Management and Archaeological Museum examined the artifact, they made a remarkable discovery: the cross fits perfectly into a bronze mold excavated in 1983 from a Slavic hillfort in Berlin-Spandau.

Until now, no finished object had ever been associated with that mold.

A Rare Reunion Across the Centuries

The Spandau mold—commonly known among scholars as the “Spandau Cross”—has long been considered one of the earliest pieces of material evidence for Christian symbolism in the region between the Elbe and Oder rivers. Found near the remains of an early wooden church, it suggested that Christian objects may have been produced locally during a time when historical knowledge largely relies on written sources.

The newly recovered cross fundamentally changes that understanding. Careful measurements and conservation work confirmed that the Havelland cross was cast using the Spandau mold. Archaeologists describe this as an exceptionally rare case: a medieval casting mold and its finished product reunited after more than a millennium.

“This kind of match is virtually unheard of,” said Franz Schopper, highlighting the value of long-term archaeological documentation and cooperation between professional researchers and trained volunteer finders.

Owl statue found with man's face carved inside

In pre-Hispanic belief systems, the owl was closely associated with night and death, leading researchers to interpret the figure depicted in the sculpture as an honoured ancestor commemorated within the tomb.

President Pardo described the find as the most significant archaeological discovery in Mexico in the past decade, highlighting its exceptional state of preservation and the wealth of information it provides. He emphasized that the tomb stands as a powerful testament to Mexico’s cultural greatness.

Situated in the Central Valleys of Oaxaca, the tomb preserves the architectural sophistication of the Zapotec civilization and offers valuable insight into the society’s social structure and funerary practices, according to a statement from Mexico’s National Institute of Anthropology and History (INAH).

“It is an extraordinary discovery because of its level of preservation and what it reveals about Zapotec culture—its social organisation, burial rituals and worldview—expressed through architecture and mural painting,” said Claudia Curiel de Icaza, Mexico’s secretary of culture.

She added that the findings reflect “Mexico’s millennia-old greatness” and underline its central role in the cultural history of ancient Mesoamerica.

Zapotec tomb in southern Mexico

INAH also reported the discovery of “extraordinary” mural paintings in ochre, white, green, red, and blue. Located within the burial chamber, the murals depict a procession of figures carrying bags of copal and moving toward the entrance.

Specialist teams are currently conducting conservation and research at the site, focusing on stabilising the fragile mural paintings, which are threatened by encroaching roots and insect activity.

500,000-Year-Old Elephant Bone Hammer Reveals Clever Tool-Making Skills of Early Humans

Learn about a 500,000-year old hammer made from elephant bone, used by early humans in England to sharpen stone tools.

The elephant bone tool’s surface shows marks of it being struck against flint tools.

Early humans were remarkably inventive, crafting tools not only from stone but also from animal bones. One striking example is a primitive hammer made from elephant bone that dates back nearly 500,000 years and was recently identified in southern England.

A new study published in Science Advances highlights the ingenuity of the early human species that used this bone hammer to refine stone tools. Elephant bone, a rare material in prehistoric Britain, proved ideal for tool maintenance because of its thickness and durability. The surface of the hammer bears clear impact marks, showing it was repeatedly struck against stone and revealing a high level of technical skill.

“This extraordinary find demonstrates the creativity and adaptability of our ancient ancestors,” said lead author Simon Parfitt, a research fellow at University College London. “They had an in-depth understanding of local materials and knew how to use them to produce finely crafted stone tools.”

Bone tools and early humans

In Europe, the earliest clear evidence for deliberately made bone tools dates to around 500,000 years ago. Archaeological sites in central and southern Europe have yielded shaped bone implements, some of which were used to resharpen stone tools. Across Eurasia, such bone technologies were likely first developed by Homo heidelbergensis and later adopted and expanded by Neanderthals, reflecting growing technological complexity.

The use of bone tools, however, extends even further back in time. A study published in March 2025 reported the discovery of 1.5-million-year-old tools from Olduvai Gorge in Tanzania, made from the limb bones of large mammals. Early hominins in East Africa mainly used hippopotamus and elephant bones to create elongated, pointed, and notched tools.

The 500,000-year-old hammer discussed in the new study is the oldest elephant bone tool ever identified in Europe. Although the bone fragment was excavated in the early 1990s at the Boxgrove site in the UK, it was only recently recognized as a tool following renewed analysis.

“Elephant bone would have been a rare yet highly valuable resource, and this object was likely an important and well-used tool,” Parfitt said.

Researchers examined the artifact using 3D scanning and electron microscopy, which revealed notches and impact marks consistent with hammering. Tiny fragments of flint embedded in these notches further confirmed that the bone had been repeatedly used to strike stone.

Sharpening stone tools

The team suggests that either early Neanderthals or Homo heidelbergensis made the tool, although the fragment is too incomplete to identify the exact elephant species. The markings indicate the bone was relatively fresh when it was used, but it remains unclear whether it came from a hunted elephant or a scavenged carcass.

The triangular hammer likely functioned as a “retoucher,” used to resharpen dulled stone handaxes and other tools by carefully chipping away flakes. Elephant bone was particularly well suited to this task: softer than stone for precise work, yet strengthened by a dense outer layer of cortical bone that made it more durable than most other animal bones.

“Our ancestors showed a sophisticated understanding of tool use,” said co-author Silvia Bello of the Natural History Museum in London. “Selecting and shaping an elephant bone fragment, then repeatedly using it to maintain stone tools, reflects advanced planning, abstract thinking, and an impressive ability to make the most of available resources.”

Greek: The language that bridges millennia

UNESCO’s recognition of International Greek Language Day affirms Greek as a living, global vessel of culture, knowledge and civilisation

UNESCO's decision to designate 9 February as International Greek Language Day recognises the enduring contribution of Greek to thought, science, and culture.

The Greek language is a singular and foundational system of human communication, with a history stretching back more than 2,500 years. It forms part of humanity’s intangible cultural heritage, enduring, migrating, and evolving across time. Greek serves as a bridge linking centuries, nations, and cultures, and as a repository for philosophy, science, art, and intellectual thought. It acts as a civilisational binding force, connecting the ancient, medieval, and modern worlds.

On November 12, 2025, during its 43rd General Conference in Samarkand, Uzbekistan, UNESCO officially designated February 9 as International Greek Language Day—a decision carrying strong symbolic and educational weight. The Greek language also aligns with UNESCO’s 2003 Convention on Intangible Cultural Heritage, which recognises it as a living cultural practice transmitted across generations and essential to storytelling, poetry, philosophy, politics, and scientific inquiry.

A date rich in meaning

The selected date is highly symbolic. February 9 marks the anniversary of the death of Dionysios Solomos, Greece’s national poet. In fact, Greece had already recognised this date as Greek Language Day since 2017. UNESCO characterises Greek as a “vessel of values and ideas”—a language that connects generations, bridges cultures, and illuminates the development of human thought.

Greek stands out as an almost uninterrupted linguistic system. It has been the framework and driving force of Greek philosophy, from Socrates, Plato, Aristotle, and Epictetus to Philo, and later became the language of the New Testament. With an oral tradition spanning roughly 40 centuries and a written tradition extending over 35 centuries, Greek is the oldest known Indo-European language. Its influence runs deeply through science, medicine, mathematics, literature, and philosophy, shaping the intellectual foundations of the Mediterranean world, Asia Minor, the Middle East, and Western Europe.

Greek and the Diaspora: duty and innovation

UNESCO’s proclamation extends beyond symbolism and serves as a call to action, particularly for Greek-language schools in the Diaspora. The Greek Ministry of Education has proposed a range of educational initiatives designed to revitalise ancient linguistic forms through creative methods. These include vocabulary-based games, myth dramatizations, digital dictionaries, storytelling activities, virtual archaeological tours, and structured debates—approaches intended to transform Greek from a classroom subject into a lived experience.

Schools worldwide are encouraged to take part in the celebrations by submitting digital postcards and short videos under the theme “My favourite Greek word,” reinforcing the idea that language thrives through the voices of children, no matter where they live.

Greek encircling the world once more

A central aim of International Greek Language Day is to ensure its global reach. This will be supported through online discussions with university Chairs of Hellenic Studies, educational video screenings, and digital initiatives that highlight the worldwide impact of Greek. The objective is not only to preserve the language, but to renew and expand it, demonstrating its relevance in the modern world.

International Greek Language Day represents a commitment to continuity—a promise that Greek will endure, as it has for more than two millennia, while continuing to evolve, adapt, and interact with diverse cultures. Across the global Diaspora, Greek will remain a living force, nurturing creativity and sustaining its rich cultural legacy.

Opinion Three centuries of Roman limescale reveals a dirty secret about Pompeii’s public baths

Carbon isotope ratios suggest that pre-aqueduct, the water was often contaminated with human waste

Archaeology isn’t always about glamorous discoveries like gold, jewels, or perfectly preserved swords—the kind that capture headlines. More often, researchers work with subtle clues, teasing out history from the most ordinary or overlooked materials. A striking example comes from Germany, where scientists have used Roman limescale to trace Pompeii’s ancient water supply.

Pompeii is one of archaeology’s most iconic sites. The eruption of Mount Vesuvius in 79 CE buried the city almost instantly, preserving everything—from human bodies frozen in ash to buildings adorned with vibrant murals. The ruins provide a unique snapshot of Roman life in the first century CE, capturing both its grandeur and its human tragedies.

Supplying the Roman baths

Among the city’s remains are remarkably intact bath complexes, which reveal how sophisticated public bathing was in Roman society. Pompeii had three main public baths: the Republican, Stabian, and Forum Baths. Yet water was never abundant. Before the first century CE, residents relied on deep wells—up to 40 meters—and rainwater cisterns. Even when lifted by hand-powered devices, this water was not suitable for drinking.

Around 1 CE, the Aqua Augusta aqueduct was constructed, channeling water from springs 30–40 km away. This reliable supply could provide potable water and freed the city from dependence on deep wells, causing the Republican Baths to fall out of use.

As with all natural water sources, minerals dissolved in the water formed calcium carbonate deposits—limescale—on the walls of wells, cisterns, baths, and bronze heating devices. Preserved for centuries, these deposits provide a detailed record of Pompeii’s water sources and quality over nearly 300 years, with some crusts reaching 3 cm in thickness.

Reading the chemical record

The secret lies in the water’s chemistry. By comparing modern groundwater near Pompeii with spring water from the aqueduct, researchers identified distinctive patterns. Trace metals like copper and zinc reflect the use of bronze heating equipment. More revealing, however, are the ratios of stable carbon (δ¹³C) and oxygen (δ¹⁸O) isotopes, which differ depending on the geology of the water source and microbial activity.

In the Republican Baths, δ¹³C levels drop between the well deposits and those in the baths themselves, suggesting contamination from human waste and microbes. This indicates that bath water was replaced infrequently—likely no more than once a day—making late-evening dips somewhat unpleasant.

The Stabian Baths show a similar pattern in their older sections, which were fed by wells. Later sections, however, display isotopic signatures matching the aqueduct water. This innovation allowed for more frequent water replacement, improving hygiene and overall cleanlinessall information gleaned from ancient limescale.