Last Glacial Maximum (LGM)
Years: 24500BCE - 18000BCE
The Last Glacial Maximum (LGM) refers to the time of maximum extent of the ice sheets during the last glacial period, between 26,500 and 19,000–20,000 years ago.
It was followed by the Late Glacial Maximum.At this time, ice sheets cover the whole of Iceland and all but the southern extremity of the British Isles.
Northern Europe is largely covered, the southern boundary passing through Germany and Poland, but not quite joined to the British ice sheet.
This ice extends northward to cover Svalbard and Franz Josef Land and eastward to occupy the northern half of the West Siberian Plain, ending at the Taymyr Peninsula, and damming the Ob and Yenisei rivers forming a West Siberian Glacial Lake.
In North America, the ice covers essentially all of Canada and extends roughly to the Missouri and Ohio Rivers, and eastward to New York City.
In addition to the large Cordilleran Ice Sheet in Canada and Montana, Alpine glaciers advance and (in some locations) ice caps cover much of the Rocky Mountains in the United States.In the Southern Hemisphere, the Patagonian Ice Sheet covers Chile and western Argentina north to about 41 degrees south.
Ice sheets also cover Tibet (scientists continue to debate the extent to which the Tibetan Plateau was covered with ice), Baltistan, Ladakh, the Venezuelan Andes and the Andean altiplano.
In Africa, the Middle East and Southeast Asia, many smaller mountain glaciers form, especially in the Atlas, the Bale Mountains, and New Guinea.Permafrost covers Europe south of the ice sheet down to present-day Szeged and Asia down to Beijing.
In North America, latitudinal gradients are so sharp that permafrost does not reach far south of the ice sheets except at high elevations.The Indonesian islands as far east as Borneo and Bali are connected to the Asian continent in a landmass called Sundaland.
Palawan is also part of Sundaland, while the rest of the Philippine Islands form one large island separated from the continent only by the Sibutu Passage and the Mindoro Strait.
Australia and New Guinea are connected forming Sahulland.
Between Sundaland and Sahulland, Wallacea remains islands, though the number and width of water gaps between the two continents are considerably smaller.
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During this period, Neanderthals are gradually being displaced as modern humans expand into Europe.
The slow pace of human migration into Europe suggests that Homo sapiens and Neanderthals may have been in continuous competition for territory over an extended period.
Neanderthals, with their larger, more robust frames, were likely physically stronger than modern Homo sapiens. Having inhabited Europe for over 200,000 years, they were also better adapted to cold climates, giving them a potential survival advantage in harsh Ice Age conditions.
Siberia has paleontological significance, as it contains bodies of prehistoric animals from the Pleistocene Epoch, preserved in ice or in permafrost.
Specimens of Goldfuss cave lion cubs, Yuka the mammoth and another woolly mammoth from Oymyakon, a woolly rhinoceros from the Kolyma, and bison and horses from Yukagir have been found.
One of the largest-known volcanic events of the last 251 million years of Earth's geological history formed the Siberian Traps.
Volcanic activity continued here for a million years and some scientists consider it a possible cause of the "Great Dying" about 250 million years ago, estimated to have killed 90% of species existing at the time.
Northeastern Eurasia (28,577 – 7,822 BCE): Late Pleistocene–Early Holocene — Beringian Migrations, Salmon Economies, and the First Pottery Traditions
Geographic & Environmental Context
At the end of the Ice Age, Northeastern Eurasia—stretching from the Urals to the Pacific Rim—was a vast, deglaciating world of river corridors, boreal forests, and emerging coasts. It included three key cultural–ecological spheres:
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Northwest Asia — the Ob–Irtysh–Yenisei heartlands, Altai piedmont lakes, and Minusinsk Basin, bounded by the Ural Mountains to the west. Here, deglaciation produced pluvial lake systems, and forest belts climbed into the Altai foothills.
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East Europe — from the Dnieper–Don steppe–forest margins to the Upper Volga–Oka and Pripet wetlands, a corridor of interlinked rivers and pluvial basins supporting rich postglacial foraging.
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Northeast Asia — the Amur and Ussuri basins, the Sea of Okhotsk littoral, Sakhalin and the Kuril–Hokkaidō arc, Kamchatka, and the Chukchi Peninsula—a maritime–riverine realm where early Holocene foragers developed salmon economies and pottery traditions under the warming Pacific westerlies.
Together these subregions formed a continuous arc of adaptation spanning tundra, taiga, and coast—an evolutionary laboratory for the technologies and traditions that would later circle the entire North Pacific.
Climate & Environmental Shifts
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Bølling–Allerød (14,700–12,900 BCE): Rapid warming and higher precipitation expanded boreal forests and intensified riverine productivity across Eurasia’s north. Salmon runs strengthened in the Amur and Okhotsk drainages; pluvial lakes filled the Altai basins.
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Younger Dryas (12,900–11,700 BCE): A temporary cold–dry reversal restored steppe and tundra, constraining forests to valleys; lake levels fell; inland mobility increased.
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Early Holocene (after 11,700 BCE): Stable warmth and sustained moisture drove forest advance (pine, larch, birch) and high lake stands; sea levels rose along the Okhotsk and Bering coasts, flooding older plains and establishing modern shorelines.
These oscillations forged adaptable forager systems able to pivot between large-game mobility and aquatic specialization.
Subsistence & Settlement
Across the northern tier, lifeways diversified and semi-sedentism began to take root:
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Northwest Asia:
Elk, reindeer, beaver, and fish formed broad-spectrum diets. Lakeside camps in the Altai and Minusinsk basins became seasonal home bases, while Ob–Yenisei channels hosted canoe or raft mobility. Forest nuts and berries expanded plant food options in warm phases. -
East Europe:
Along the Dnieper, Don, and Upper Volga, foragers targeted elk, red deer, horse, and beaver, exploiting riverine fish and waterfowl. Repeated occupations at lake outlets and confluences reflect increasing site permanence and food storage. -
Northeast Asia:
The Amur–Okhotsk region pioneered salmon-based economies, anchoring early Holocene villages at river confluences and estuarine terraces. Coasts provided seal, shellfish, seabirds, and seaweeds, while inland foragers pursued elk and musk deer. Winter sea-ice hunting alternated with summer canoe travel along the Sakhalin–Kuril–Hokkaidō chain.
This mosaic of economies—lake fishers, river hunters, and sealers—reflected the continent’s growing ecological diversity.
Technology & Material Culture
Innovation was continuous and regionally distinctive:
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Microblade technology persisted across all subregions, with refined hafting systems for composite projectiles.
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Bone and antler harpoons, toggling points, and gorges evolved for intensive fishing and sealing.
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Ground-stone adzes and chisels appeared, enabling woodworking and boat construction.
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Early pottery, first along the Lower Amur and Ussuri basins (c. 15,000–13,000 BCE), spread across the Russian Far East—among the world’s earliest ceramic traditions—used for boiling fish, storing oils, and processing nuts.
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Slate knives and grindstones at Okhotsk and Amur sites show specialized craft economies.
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Personal ornaments in amber, shell, and ivory continued, while sewing kits with eyed needles and sinew thread supported tailored, waterproof clothing.
These toolkits established the technological template for later northern and Pacific Rim foragers.
Movement & Interaction Corridors
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Ob–Irtysh–Yenisei river systems funneled movement north–south, linking the steppe with the taiga and tundra.
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Altai and Ural passes maintained east–west contact with Central Asia and Europe.
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Dnieper–Volga–Oka networks merged the European forest-steppe into the greater Eurasian exchange field.
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In the Far East, the Amur–Sungari–Zeya–Okhotsk corridor unified interior and coast, while the Sakhalin–Kuril–Hokkaidō arc allowed short-hop voyaging.
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Across the Bering Strait, fluctuating sea levels intermittently connected Chukotka and Alaska, maintaining Beringian gene flow and cultural exchange.
These conduits supported both biological and technological diffusion at a continental scale.
Cultural & Symbolic Expressions
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Ochre burials with ornamented clothing and ivory or antler goods reflect deep symbolic continuity from the Upper Paleolithic.
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Petroglyphs and engravings in the Altai and Minusinsk basins, and later in Kamchatka, depict large animals, waterbirds, and solar motifs.
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Amur basin figurines and carved marine-mammal and fish effigies attest to ritualized relationships with food species.
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In the Far East, early evidence of first-salmon and bear-rite traditions foreshadows later Ainu and Okhotsk ceremonialism.
Across all subregions, water and game remained the core of spirituality, connecting people to cyclical abundance and ancestral landscapes.
Environmental Adaptation & Resilience
Foragers across Northeastern Eurasia met environmental volatility with creative versatility:
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Zonal mobility (taiga–tundra–coast) and multi-season storage (dried meat, smoked fish, rendered oils) stabilized food supply.
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Boat and ice technologies extended reach across seasons.
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Broad-spectrum diets cushioned against climatic downturns.
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Flexible dwellings and social alliances allowed fission and fusion as resources shifted.
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Memory landscapes—engraved rocks, ritual mounds, named rivers—preserved continuity through spatial change.
Genetic and Linguistic Legacy
The Beringian population standstill during the Late Glacial created a deep ancestral pool for both Paleo-Inuit and First American lineages, while reciprocal migration reconnected Chukchi, Kamchatkan, and Amur populations after sea-level rise.
These long-lived networks seeded circum-Pacific cultural parallels in salmon ritual, dog-traction, maritime hunting, and composite toolkits, forming the northern backbone of later trans-Pacific cultural continuity.
Long-Term Significance
By 7,822 BCE, Northeastern Eurasia had become one of the world’s great centers of forager innovation:
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Northwest Asia’s pluvial lakes fostered early semi-sedentism and the first rock art of Siberia.
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East Europe’s river–lake foragers stabilized broad-spectrum economies bridging steppe and forest.
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Northeast Asia’s salmon-rich coasts and early pottery traditions created the technological and ritual matrix that would radiate across the North Pacific.
This continental synthesis of aquatic resource mastery, ceramic innovation, and long-range mobility defined the emerging Holocene north—a zone where people and landscape adapted together through water, ice, and memory.
Northeast Asia (28,577 – 7,822 BCE): Upper Paleolithic II — Beringian Standstill, Early Pottery Horizons, and Salmon Towns
Geographic and Environmental Context
Northeast Asia includes eastern Siberia east of the Lena River to the Pacific, the Russian Far East (excluding the southern Primorsky/Vladivostok corner), northern Hokkaidō (above its southwestern peninsula), and extreme northeastern Heilongjiang.
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Anchors: the Lower/Middle Amur and Ussuri basins, the Sea of Okhotsk littoral (Sakhalin, Kurils), Kamchatka, the Chukchi Peninsula (with Wrangel Island offshore), northern Hokkaidō, and seasonally emergent shelves along the Bering Sea and northwest Pacific.
Climatic Crisis and Population Transformation During the LGM
Between roughly 28,500 and 20,000 years ago, the onset of the Last Glacial Maximum (LGM) profoundly altered Northeast Asia. Ice sheets, permafrost expansion, and ecological fragmentation reduced habitable zones across Siberia.
During and immediately after this period, the Ancient North Siberians were largely replaced by populations carrying ancestry closely related to East Asians. This was not a simple migration but a prolonged process of demographic turnover, admixture, and regional extinction.
Out of this transformation emerged two closely related populations:
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Ancestral Native Americans
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Ancient Paleosiberians (AP)
Paleoclimatic modeling strongly supports southeastern Beringia as a long-term refugium during the LGM, providing a stable ecological zone where these populations could persist, interact, and differentiate.
Climate and Environmental Shifts
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Bølling–Allerød (c. 14,700–12,900 BCE): warming and moisture increase expanded boreal forest into valleys; salmon runs intensified; nearshore productivity rose.
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Younger Dryas (c. 12,900–11,700 BCE): brief return to cooler, drier conditions; tundra patches expanded but ice-free coasts still offered reliable marine resources.
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Early Holocene (after c. 11,700 BCE): stabilizing warmth and rising sea level reshaped shorelines; taiga expanded fully; rich riverine and estuarine habitats matured.
Subsistence and Settlement
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Deglaciating coasts supported seal and salmon economies; intertidal shellfish beds and seabird rookeries fueled seasonal aggregation.
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In warming phases, diets diversified toward fish (salmon, sturgeon), small game, and plant foods (nuts, roots, berries).
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Younger Dryas prompted higher mobility and renewed emphasis on large herbivores where herds persisted.
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Early Holocene villages favored river confluences and coastal terraces, ideal for salmon weirs and broad foraging radii.
Technology and Material Culture
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Microblade production refined; hafted composite points standardized for hunting and sealing.
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Bone/antler harpoons with toggling tips; barbed fishhooks; sewing kits for tailored garments and waterproof seams.
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Early pottery appears in the Lower Amur–Russian Far East and spreads to surrounding basins—among the world’s earliest ceramic traditions—used for fish oils, stews, and nut processing.
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Ground-stone adzes for wood-working and dugout canoe manufacture; slate knives on some Okhotsk coasts.
Movement and Interaction Corridors
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Amur–Sungari waterway integrated interior and coast; Sakhalin–Kuril–Hokkaidō island chain enabled short-hop voyaging.
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Beringian standstill: populations on both sides of the strait developed long-term ties; fluctuating sea levels modulated contact.
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Seasonal sea-ice bridges facilitated winter travel; summer lanes favored canoe movement.
Cultural and Symbolic Expressions
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Carved bone and ivory figurines, zoomorphic engravings, and ochre burials persisted, signaling continuity with earlier Upper Paleolithic symbolic systems.
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Recurrent salmon first-catch rites and bear/sea-mammal treatment practices are inferred from patterned discard and ritualized processing locales.
Environmental Adaptation and Resilience
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Zonal mobility (taiga–tundra–coast) and storage (dried fish, rendered oils) buffered climate swings across Bølling–Allerød → Younger Dryas → Early Holocene.
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Canoe technologies, fish weirs, and shoreline mapping (capes, tide rips, haul-outs) underwrote stable subsistence as forests spread and shorelines shifted.
Genetic and Linguistic Legacy
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Prolonged Beringian population structure during late glacial–early Holocene times contributed ancestry to Paleo-Inuit and to the First Americans; reciprocal gene flow linked Chukchi–Kamchatka–Amur families.
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These deep ties foreshadowed later circum-North Pacific cultural continuities in salmon ritual, dog-traction, and composite toolkits.
Transition Toward the Holocene Forager Horizons
By 7,822 BCE, Northeast Asia featured mature taiga coasts, prolific salmon rivers, and early pottery villages—a landscape primed for the broad-spectrum, semi-sedentary foraging economies that would dominate the Early Holocene and eventually feed into Epi-Jōmon/Satsumon, Okhotsk, and Amur basin cultural florescences.
The Middle East (28,577 – 7,822 BCE) Upper Pleistocene II — Bølling–Allerød Abundance, Younger Dryas Stress, Early Holocene Recovery
Geographic and Environmental Context
The Middle East includes Iraq, Iran, Syria, Armenia, Georgia, Azerbaijan, eastern Jordan, most of Turkey’s central/eastern uplands (including Cilicia), eastern Saudi Arabia, northern Oman, Qatar, Bahrain, the UAE, northeastern Cyprus, and all but the southernmost Lebanon.-
Anchors: the Tigris–Euphrates alluvium and marshes; the Zagros (Luristan, Fars), Alborz, Caucasus (Armenia–Georgia–Azerbaijan); northern Syrian plains and Cilicia; Khuzestan and Fars lowlands; the Arabian/Persian Gulf littoral (al-Ahsa–Qatar–Bahrain–UAE–northern Oman); northeastern Cyprus and the Lebanon coastal elbow (north).
Climate & Environment
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Bølling–Allerød (c. 14.7–12.9 ka): rainfall rose; gallery woodlands expanded along Tigris–Euphrates and Zagros springs.
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Younger Dryas (12.9–11.7 ka): cooler–drier snapback; steppe patches widened.
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Early Holocene: stabilizing warmth; perennial springs recharged; Gulf shoreline advanced landward.
Subsistence & Settlement
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Broad-spectrum foraging intensified (gazelle–onager–boar–fish–mollusks; seeds, acorns, pistachio/almond); semi-recurrent springhead hamlets in Zagros and Upper Mesopotamia (preludes to later Epipaleolithic “Natufian-like” economies outside our zone).
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Seasonal coastal foraging at northeastern Cyprus and the Gulf rim.
Technology & Material Culture
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Microlithic toolkits diversified; grinding stones and mortars for seeds/nuts; bone harpoons/fish gorges in marshy reaches.
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Hafting resins, compound points; early basketry inferred.
Corridors
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Zagros spring belts (Luristan–Kurdistan) and Upper Mesopotamian flanks; Caucasus piedmont fans; Gulf shelf retreat reshaped coastal access.
Symbolism & Ritual
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Persistent ochre burials; ritual deposits at springs; engraved motifs (caprids, equids).
Adaptation & Resilience
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Diet breadth + storage (dried meat/fish, nut pastes) buffered Younger Dryas shocks; flexible camp scheduling maintained returns.
Transition
Early Holocene stability primed semi-sedentary river–spring villages and the seed economies that will underpin later plant management.
(7,821 – 6,094 BCE) Early Holocene — Semi-Sedentary Spring Villages & Seed Processing
Climate & Environment
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Thermal optimum onset: marsh–riparian mosaics in Lower Mesopotamia; wooded Zagros; productive Caucasus belts; Gulf continued transgression.
Subsistence & Settlement
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Semi-sedentary hamlets on springheads/low terraces (Zagros–Upper Mesopotamia) combined hunting with seed–nut processing; wetland fishing/waterfowling in Tigris–Euphrates backwaters.
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Early caprine management likely began on Zagros slopes (wild → managed herds).
Technology & Material Culture
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Ground-stone mortars/querns proliferated; larger storage pits; microliths persisted; incipient pottery appears on the northern Iranian/Caspian periphery by late in the epoch.
Corridors
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Zagros passes (Kermanshah–Khuzestan) linked uplands to Khuzestan plains; Karkheh–Karun marshes tied to the Upper Gulf.
Symbolism
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House-based ritual (hearths, ancestor interments); stone slab markers; continued ochre.
Adaptation
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Storage + proximity to springs anchored overwintering; mixed wetland–upland rounds hedged variability.
Transition
These lifeways foreshadow Neolithic cultivation/herding communities across the Zagros and Upper Mesopotamia.
The Upper Paleolithic (also spelled Upper Palaeolithic) is the final subdivision of the Paleolithic (Old Stone Age), as defined in Europe, Africa, and Asia.
Broadly dating between 40,000 and 10,000 years ago, this period coincides with the emergence of behavioral modernity and predates the development of agriculture.
The terms "Late Stone Age" and "Upper Paleolithic" refer to the same time period. However, due to historical conventions, "Stone Age" is more commonly used in reference to Africa, while "Upper Paleolithic" is typically applied to Europe.
Artistic creativity flourishes beginning around 29,000–28,000 BCE, as Early European Modern Humans produce their first small engravings, relief carvings, and animal sculptures. Over time, they create statuettes of ivory or stone, as well as occasional engravings of female figures on stone.
Many of the finest examples of prehistoric cave art, depicting animals in remarkable detail, have been preserved in French and Spanish caves, spanning a period of nearly 20,000 years.
The Emergence of Fiber Crafting and Early Textile Technology (c. 26,000 Years Ago)
By approximately 26,000 years ago, women across different regions had begun using natural fibers to create a variety of essential tools and garments, marking a significant advancement in prehistoric textile and tool-making technologies. This innovation not only enhanced daily life and survival strategies but also reflected the growing ingenuity and adaptability of early human societies.
Fiber Crafting and Its Applications
- Baby Carriers – Early humans likely fashioned fiber slings or wraps to carry infants, allowing for greater mobility while ensuring the care and safety of young children.
- Clothing – Fibers were woven or knotted into basic garments, complementing the use of animal hides for protection against harsh climates.
- Bags and Baskets – Crafted for gathering, storing, and transporting food and tools, these items indicate an increased reliance on plant-based resources.
- Nets and Cordage – Some of the earliest evidence of fishing and trapping technology comes from the creation of fiber nets, which allowed for more efficient food procurement.
Significance of Fiber Crafting
- Represented an early form of textile production, laying the foundation for later innovations in weaving and spinning.
- Allowed for greater economic and social organization, as fiber crafting likely became a specialized skill passed down through generations.
- Expanded the role of plant materials in human survival, alongside hunting and stone tool-making.
The ability to manipulate and utilize plant fibers for diverse purposes demonstrated the ingenuity of Upper Paleolithic societies, highlighting their technological advancements and evolving cultural complexity. These innovations in textile and tool-making would continue to shape human societies well into the Neolithic era and beyond.
Fully advanced humans, sometimes referred to as Upper Cave people, hunt, fish, and produce shell and bone artifacts near Beijing (Peking) by about 25,000 BCE.
"History never repeats itself, but the Kaleidoscopic combinations of the pictured present often seem to be constructed out of the broken fragments of antique legends."
― Mark Twain, The Gilded Age (1874)
