Week of March 16: 476,000-Year-Old Wooden Structure Found, Oldest Stone Towers Discovered, and More

Archaeologists have identified the world’s oldest known wooden structure at Kalambo Falls on the Zambia-Tanzania border—two interlocking notched logs securely dated to approximately 476,000 years ago, predating Homo sapiens by over 100,000 years and demonstrating advanced planning behavior in pre-sapien hominins. Meanwhile, excavations at Tell Qaramel in northern Syria have revealed five stone towers radiocarbon-dated to 10,650–9,650 BCE, making them the oldest stone towers in the world and predating both the famed Jericho Tower and Göbekli Tepe. In contested findings, researchers continue debating whether Tall el-Hammam in the Jordan Valley was destroyed by a cosmic airburst around 1650 BCE—the original 2021 Nature Scientific Reports paper was retracted in 2023, though the unusual physical evidence including shocked quartz and fused glass remains under scientific investigation.

New Excavations & Fieldwork

Excavations at Tall el-Hammam, the largest Middle Bronze Age city in the Jordan Valley—approximately ten times larger than contemporary Jerusalem—have uncovered a destruction layer dating to approximately 1650 BCE that presents unusual characteristics [10][2][8]. Beginning in 2006 under archaeologist Steven Collins, the excavations revealed a five-foot-thick soot layer containing burned human bones, melted mudbrick, and pottery shards fused into green-glazed glass [10][3][4]. A multidisciplinary team of 21 scientists conducted a 15-year study, subsequently published in Nature Scientific Reports, proposing that the destruction resulted from a cosmic airburst similar to the 1908 Tunguska event, citing evidence including shocked quartz crystals, salt concentrations of 4-25%, and temperature estimates exceeding 3,600°F [2][3][7][8].

Tal Hamam destruction layer shows evidence of cosmic airburst event around 1650 BCE

Yet the airburst hypothesis remains highly contested within the scholarly community [5][6]. The original Nature Scientific Reports article was retracted in 2023, with critics characterizing aspects of the research as pseudoscientific and questioning its methodological foundations [5][6]. A SAPIENS publication specifically raised concerns about the research linking the site to the biblical account of Sodom as extending beyond empirical archaeological evidence [5]. Whether the destruction was caused by a cosmic airburst, alternative natural disaster, or warfare remains unresolved, though the unusual physical evidence continues to attract scientific interest [2][3].

Beneath the polished basalt flooring of the Giza Plateau, researchers have documented intentional channels cut deep into the interior rock, extending well beneath basalt walls [11]. These channels appear deliberately designed to transport liquid material, suggesting the ancient builders constructed a sophisticated liquid management system—possibly for water, ritual fluids, or other substances—with remarkable precision. The discovery also includes square receptacles or boxes found in association with the channel network, indicating a coordinated functional purpose rather than incidental drainage or construction artifacts [11]. The medium confidence level assigned to these findings reflects their preliminary documentation status rather than any dispute over their intentional nature. Several significant questions remain unanswered: the precise location within the Giza complex, its relationship to known structures such as the Valley Temple of Khafre, and whether the feature predates, postdates, or is contemporary with the basalt-covered areas [11]. Without peer-reviewed excavation reports or primary stratigraphic records, the dating and full extent of this channel system—and its precise function beyond liquid transport—continue to challenge researchers seeking to understand the full scope of Fourth Dynasty engineering capabilities.

Intentional channels cut beneath basalt floor at Giza for liquid transport

Artifact Discoveries

Ardre VIII stands among the most celebrated of the ten rune and image stones discovered at Ardre Church on Gotland, Sweden, dating to the eighth century [12]. The stone, now housed in the National Museum of Sweden in Stockholm, features one of the most recognizable depictions in Viking Age art: Odin riding his eight-legged horse Sleipnir across the upper register, a composition generally understood to represent the god’s journey toward Valhalla [13][17]. Scholars widely accept that Sleipnir appears on two notable Gotlandic image stones—Tjängvide and Ardre VIII—with the latter presenting this mythological scene in distinctive carved relief [17][16].

Ardre VIII stone depicts Volant in flying suit entering Valhalla

Below this central mythological tableau, the stone shows a bird-like shape entering Valhalla, depicted as a hemispherical structure with doorways and windows [13]. However, interpretations characterizing this figure as a figure in a “flying suit” or as an “elf astronaut” entering Valhalla appear nowhere in peer-reviewed or established archaeological sources [13][15]. Weathering and erosion have caused significant damage to the figure’s neck and wing sections, complicating any detailed iconographic reading [13]. Recent Reflectance Transformation Imaging (RTI) studies of Gotlandic picture stones suggest that new technical analysis may refine understanding of these damaged passages, though no definitive re-interpretation of this bird-like figure has yet emerged [15]. The question of whether this shape represents a valkyrie, a raven, or another mythological entity remains open.

Bioarchaeology & Ancient DNA

Archaeologists excavating at Kalambo Falls on the Zambia-Tanzania border have uncovered what appears to be the oldest known wooden structure in the world—two interlocking logs with deliberately cut notches, securely dated to approximately 476,000 years ago [7][12]. The Smithsonian Human Origins Program has stated that the discovery provides evidence for the oldest structural use of wood ever documented [29]. Clear evidence of intentional shaping and woodworking appears throughout the logs, with interlocking features suggesting the builders understood how pieces would fit together for a specific purpose [2][3]. Preservation of organic material at this age owes much to the waterlogged riverbed conditions, which also yielded other wooden tools alongside the structural remains [24].

This discovery carries profound implications for understanding early human cognitive abilities. The structure predates the earliest fossil evidence of Homo sapiens by over 100,000 years, suggesting that complex, deliberate construction behavior emerged in pre-sapien hominins [7][9]. While the exact function remains unclear—whether shelter, platform, fish trap, or another purpose entirely—and the species of hominin responsible for construction has not been identified, the evidence points to advanced planning behavior including foresight, material selection, and systematic shaping [27]. The find raises questions about whether this represents a unique occurrence or evidence of widespread construction behavior in Lower Paleolithic Africa that rarely survives in the archaeological record [11][7].

Architecture & Monuments

Excavations at Tell Qaramel in northern Syria have uncovered five stone towers that have reshaped understanding of early Neolithic architecture. Discovered during fieldwork beginning in 1999, these structures have been radiocarbon-dated to approximately 10,650–9,650 BCE, placing them squarely in the middle to late eleventh millennium BC [30][31][33]. What makes this discovery particularly remarkable is that the Tell Qaramel towers predate both the famed Jericho Tower and Göbekli Tepe, making them, according to radiocarbon verification, the oldest stone towers in the world [32][34][35]. The site represents an early Pre-Pottery Neolithic A (PPNA) occupation, suggesting that complex monumental architecture emerged even earlier than previously hypothesized in the Fertile Crescent [33].

While the existence of these ancient towers is firmly established through excavation and scientific dating, significant questions remain about their form and function. Available sources do not fully describe the towers’ architectural details, construction methods, or probable height, leaving uncertainty about whether they served defensive, ceremonial, or communal purposes [31][34]. The five towers appear to represent successive construction phases, with Tower 0 identified as the second oldest structure at the site [31]. Given their remarkable antiquity, the Tell Qaramel towers challenge us to reconsider the timeline of architectural innovation in the Neolithic revolution, though ongoing research has been complicated by the site’s location in Syria [30][32].

Inscriptions & Texts

For approximately two centuries, the fractured Colossus of Memnon drew pilgrims, officials, and poets to its legs in the Theban necropolis, where they carved their names and verses into the 700-ton stone guardian of Amenhotep III’s funerary temple. According to toldinstone’s epigraphic analysis, the northernmost statue bears 107 Roman-era graffiti inscriptions dating between AD 20 and AD 250 [36]. An earthquake during Augustus’s reign had cracked the monument, allowing moisture to produce a haunting musical sound at dawn—an acoustic phenomenon that transformed a ruined pharaonic statue into one of antiquity’s most visited attractions until Emperor Septimius Severus repaired the damage around 199 AD [36][37].

Colossus of Memnon attracted 107 graffiti inscriptions during 200-year period as tourist attraction

The inscriptions reveal a cross-section of Graeco-Roman society making the pilgrimage: nine Egyptian prefects, at least one emperor, and dozens of anonymous visitors all sought to immortalize their encounter with the singing colossus [36]. Emperor Hadrian himself visited on November 20-21, 130 AD, commemorated by six Greek epigrams carved into the stone [36]. The inscriptions break down to 61 Greek, 45 Latin, and a single bilingual example, with the right leg inscribed before the left—likely because it received better illumination from the rising sun, the same light that may have triggered the acoustic effect [36]. Among the 39 poems preserved, a typical example by the poet Aras incorporates lines from Homer’s Iliad, demonstrating how visitors wove classical learning into their personal commemorations [36].

Contrary to long-standing assumptions that the 1303 earthquake drove the systematic removal of the Great Pyramid’s limestone casing stones, evidence points to a late 14th-century window of destruction. German traveler Ludolf von Sudheim documented intact, white casing stones still covering the monument in 1336, but by 1395, a French nobleman from Anglur recorded that approximately half the stones had been stripped away [41][39]. The stones were reportedly repurposed as building material for mosques and houses in Cairo, likely driven by construction demands in the expanding city rather than the immediate aftermath of seismic damage [40]. Whether the 1303 earthquake created the economic incentive for quarrying the pyramid remains debated among specialists, with some questioning the direct causal link given the decades-long gap before significant removal began [41]. The pace and mechanism of removal—whether authorized by central authorities or opportunistic local activity—remain unresolved questions.

Casing stones stripped from Great Pyramid between 1336 and 1395 AD

Among the surviving evidence, the Edinburgh stone represents the only known example of a casing stone from the upper levels of the Great Pyramid’s north side [38]. Notably, von Sudheim’s account claimed inscriptions in Latin, Greek, Hebrew, Chaldean, and unknown ancient languages adorned the casing stones, a detail disputed by Egyptologists Mark Lehner and Zahi Hawass who contest the extent of ancient inscriptions on the original surface [39][41]. Whether his observations reflect genuine inscriptions later removed or medieval misinterpretation of surface features remains an open question, highlighting the difficulties of using traveler accounts to reconstruct the monument’s original appearance.

In Brief

An eleven-day expedition into the Gila Wilderness of New Mexico has revealed previously unknown archaeological sites in one of the most remote and difficult-to-navigate landscapes in the American Southwest. Surveying previously uncharted portions of the upper West Fork Gila River valley—an area described as “uncharted territory” by expedition members—the team documented at least two previously unknown archaeological sites, marking what may be the first systematic survey of this region in the modern era [42][43]. The expedition sought to determine whether Mogollon civilization extended into these remote areas and whether their presence represented concentrated settlement or more dispersed occupation patterns. The team navigated extreme terrain, including Iron Creek, multiple canyon systems, and numerous river crossings, to reach these isolated locations.

11-day expedition surveys uncharted Gila Wilderness for Mogollon sites

Among the most significant discoveries was a pit house village situated in a protected valley accessible only through difficult terrain. The site featured multiple house mounds, rectangular structures, evidence of terracing likely used for flood protection, and pit houses built partially underground for temperature regulation—characteristic features of Mogollon architecture [44]. The village has been estimated at approximately 1,000 years or more in age. Notably, despite applying winter sunrise orientation principles to identify potential dwelling locations, the team found no major cliff dwellings in the surveyed slot canyons [43]. However, questions remain about the expedition’s methodology: whether it represents a professionally conducted archaeological assessment or an exploratory survey conducted without standard excavation protocols or professional archaeologists.

Analysis of recently published PNAS research reveals that Aurignacian ivory figurines carried approximately 15% higher information density than contemporaneous stone tools in European assemblages [48]. This finding, corroborated by multiple news sources and discussed at length in video commentary on the 2026 paper’s methodology, positions figurines as the most information-rich category of carved artifacts from this 40,000-year-old cultural period [45][47]. Elevated information density of these carved ivory pieces held across regional variants—appearing in Swabian Jura sites in Germany, the Dordogne in France, and Belgian localities—suggesting the pattern reflects deliberate symbolic investment rather than random stylistic variation [50]. However, researchers note that preservation biases favoring the survival of durable stone over organic ivory complicate direct comparisons, meaning the true gap may differ from the reported figure [45].

Ivory figurines carry 15% higher information density than other Aurignacian object types

The same research framework documented that functional tools demonstrated roughly 10% higher information density than tubes or flutes, creating a measurable hierarchy within Aurignacian material culture [48][50]. Video analysis of the underlying paper emphasizes that these density differentials persist regardless of object volume or preservation state, suggesting the differences stem from intentional information encoding rather than physical constraints [46]. Sign sequences documented across the period show striking consistency in their structural density over extended timeframes, a finding that some specialists flag as requiring verification against primary sources, since the longest sequences—spanning millennia—were noted primarily in secondary commentary rather than peer-reviewed academic literature [46][49].

Archaeological evidence reveals that Iron Age hill forts in Wales underwent significant reoccupation during the 5th and 6th centuries CE, some 400 years after their initial abandonment [52][53]. This rehabilitation, reuse, and expansion of pre-existing structures—rather than new construction—appears to have been especially prominent in Wales, with the major period of reoccupation likely occurring in the mid to late 5th century [52][54]. Far from representing a total societal collapse, the archaeological record shows that while large Roman estates were abandoned, people remained in the landscape; however, these existing structures no longer served the socio-political requirements of the population [52]. Instead, aristocrats and military elements from these estates appear to have relocated to the reoccupied hill forts, where objects from the abandoned estates begin appearing in the archaeological record [52]. Stone pillars bearing Old Irish inscriptions found at several hill fort sites further suggest sustained Irish contact, raiding, and warfare during the post-Roman period [52].

Reoccupation of Iron Age hill forts in Wales during 5th-6th centuries post-Roman period

While the pattern of hill fort reoccupation is now well-established, scholars acknowledge that dating evidence for this phenomenon remains explicitly weak, limiting precise chronological resolution [54]. A notable point of scholarly disagreement concerns whether an Irish kingdom actually existed in southern Wales during this period—some historians support this interpretation, while others rate the evidence as low confidence due to interpretive uncertainty [53]. Additional open questions remain regarding whether reoccupation occurred uniformly across Wales or concentrated in specific regions, the scale of populations at reoccupied sites, and the precise mechanisms by which estate objects arrived at hill forts—whether through migration, trade, or capture [51][53].

Archaeological evidence reveals dramatic settlement changes across Scotland during the late Bronze Age. Around 1150 BC, approximately 2,000 stone roundhouses were abandoned in the Strath of Kiddonan alone, and average roundhouse floor area contracted from roughly 78 square meters around 1000 BC to approximately 40 square meters by 800 BC—a decline of about 48 percent—with this shrinkage progressing from western to eastern Scotland [56]. Higher elevation cultivations were similarly abandoned within two centuries of the Hekla 3 period, and tephra from this eruption has been recovered in Scottish and Irish soil cores and recorded in a Scottish speleothem [55][56]. The Hekla 3 eruption, ejecting approximately 7.3 cubic kilometers of material, is considered the most severe from Hekla volcano during the Holocene [58][57]. Yet the causal link between this eruption and northern settlement abandonment remains contested. Some researchers propose that volcanic sulfur caused acid rain altering soil pH, devastating agriculture, but the theory “fell out of favor” because no clear archaeological sequence of site destruction was documented north of the Eastern Mediterranean, and the causal mechanism for northern abandonment remains undemonstrated [56][57]. Dating the eruption itself proves challenging, with three competing radiocarbon estimates spanning 1265–895 BC, complicating precise correlation with the approximately 1150 BC abandonment event [56][59].

Hekla 3 eruption linked to Bronze Age settlement changes in British Isles around 1150 BC

William Stukeley’s extensive illustrations of Britain’s megalithic sites exerted a profoundly greater cultural influence than his substantial written output, shaping public perception of these ancient monuments for over two centuries. Over fifteen years of journeys on horseback, Stukeley produced detailed drawings of Stonehenge, Avebury, the Rollright Stones, and Stanton Drew, documenting these prehistoric structures in a manner that made them accessible to a wide audience. His prolific output included twenty books on antiquarian subjects, yet it was his visual representations that proved most enduring, becoming the primary lens through which subsequent generations encountered these monuments [62]. Scholars recognize him as a pioneering figure in the documentation of megalithic Britain, with his illustrations serving as foundational visual records that were reproduced and widely circulated, embedding particular visual narratives deeply into cultural consciousness [60][65].

Stukeley's detailed illustrations of megalithic sites had greater cultural impact than his written works

However, these influential images were not without interpretive choices. Stukeley frequently exaggerated stone sizes and depicted human figures at reduced scale, techniques that emphasized the monumentality of these ancient structures while simultaneously introducing a particular aesthetic sensibility. This visual approach proved remarkably influential, extending even to artists of later generations. William Blake drew upon antiquarian ideas popularized through Stukeley’s illustrations, demonstrating how these early representations of megalithic sites propagated certain visual and conceptual framings well beyond scholarly circles [61]. While the comparative mechanisms of text versus image in shaping public understanding remain debated, the enduring visual vocabulary of Britain’s ancient sites traces directly to Stukeley’s illustrative legacy [62].

Visitors to Derinkuyu, Cappadocia’s deepest excavated underground city, can currently explore only approximately 15% of the ancient complex, with the remaining tunnels and passages sealed off at various points throughout the site. Specialists have documented that different historical eras employed varying techniques to close these tunnels, suggesting multiple episodes of deliberate sealing rather than a single event [67]. The city descends roughly 85 meters across 18 known levels [69][68][70], yet only a fraction remains open for public exploration.

A notable discrepancy exists in accessibility reporting: while one source cites the 15% figure [67], another indicates that eight of the city’s 18 levels are accessible to visitors—a calculation that would yield approximately 44% [69]. This may reflect different measurement criteria, additional access restrictions beyond simple level count, or data gathered at different time periods, but no consensus has emerged on which figure more accurately represents the current state. Researchers have also identified similar sealing patterns in Egyptian subterranean structures [67], suggesting parallel motivations across ancient cultures for closing underground passages, though the specific reasons at Derinkuyu remain unclear.

The expedition led by Luke Caverns documented Iron Creek as an uncharted water source requiring multiple river crossings to navigate treacherous canyon terrain characterized by narrow valleys, jagged passages, and an absence of established trails [71]. The journey through this landscape presented substantial physical challenges, with the team forced to undertake water and rock climbing passages where no conventional paths existed.

Expedition navigates treacherous uncharted Iron Creek and canyon terrain

Regarding archaeological context, the expedition noted that southeast-facing ridges featuring natural rock cavities represent typical dwelling locations associated with Mogollon culture, though the source does not report specific discoveries made during this particular journey [71]. This observation aligns with established archaeological understanding of how this culture selected residential sites in the region, yet the documentation notably lacks details about artifacts, ruins, or other material evidence.

The sole source for this expedition is a single YouTube video, with no corroborating archaeological surveys, academic publications, or land management records available to verify these claims [71]. Several open questions remain unanswered: why the creek bears the name “Iron Creek” without accompanying geological evidence, what specific archaeological findings resulted from the expedition, and whether the creek’s “uncharted” status reflects genuine cartographic omission or simply the team’s navigational challenge. The absence of independent verification limits confidence in the expedition’s findings, leaving these observations as preliminary documentation awaiting corroboration through established archaeological channels.