The Neolithic Revolution
How scattered bands of foragers became farmers, villagers, and finally citizens of the first cities.
A detailed zoom into the biggest change in how humans lived before the modern era: the shift from hunting and gathering to farming, and everything that followed from it, from the first domesticated wheat to the first city and the first writing. This timeline expands two events from the wider Big Bang to Now spine, the beginning of farming and the first cities and writing, into their full story, drawn from archaeology, museums, and university research. Built for zooming.
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- About 20,000 to 19,000 years agoWell documented
Peer-reviewed · 2 sourceswhy?
Best source: Early pottery at 20,000 years ago in Xianrendong Cave, China (Science, Wu et al. 2012, via PubMed)
Cited as a "journal" source (no stronger domain match).Pottery is invented, thousands of years before farming
The story that ends in cities begins with a technology that came long before any of them, and before farming itself. The oldest known pottery, from Xianrendong Cave in Jiangxi Province, China, is radiocarbon-dated to about 20,000 to 19,000 years ago, and, as the excavators state, it was produced by mobile foragers who hunted and gathered during the height of the last Ice Age, probably to cook food. The Smithsonian likewise dates the oldest East Asian pottery to roughly 18,000 years ago. This was made and used, in the researchers' own words, ten millennia or more before the emergence of agriculture.
Why it matters: Pottery is a useful corrective to a common assumption: that farming came first and everything else followed. Here the tool came first, in the hands of hunter-gatherers, and only much later became so central to settled farming villages that archaeologists split the early Neolithic into Pre-Pottery and Pottery phases. It is the opening note of this timeline precisely because it shows the transition to farming was not a single sudden invention but a long, uneven accumulation.
How we know: The 20,000-to-19,000-year date, the Xianrendong Cave location, the hunter-gatherer makers, and the explicit point that this predates agriculture by ten millennia all come from the peer-reviewed 2012 Science report on the site, accessed via PubMed. The Smithsonian's Human Origins Program independently gives the oldest East Asian pottery as about 18,000 years old.
Oldest known pottery: About 20,000 to 19,000 years ago · Site: Xianrendong Cave, Jiangxi Province, China · Made by: Mobile hunter-gatherers, during the last Ice Age · Key point: Predates farming by 10,000+ years; it was not a farmers' invention
- About 9,600 to 8,200 BCE (roughly 11,500 years ago)Well documented
Reputable source · 2 sourceswhy?
Best source: Gobekli Tepe (UNESCO World Heritage Centre)
The domain "whc.unesco.org" is on our Reputable source registry.Gobekli Tepe: monuments before farming
On a hilltop in the Germuş mountains of southeastern Turkey, excavators uncovered massive carved stone pillars, arranged in circular and oval enclosures, dated by UNESCO to between 9,600 and 8,200 BCE, roughly 11,500 years ago and about 6,000 years before Stonehenge. Each ring centers on two T-shaped limestone pillars, some towering 16 feet and weighing seven to ten tons, surrounded by smaller pillars facing inward, many carved with foxes, lions, scorpions, and vultures. Excavation found the site's bones were overwhelmingly from wild game, not livestock, meaning the people who built it had not yet domesticated animals or crops.
Why it matters: Gobekli Tepe inverts an assumption archaeologists held for decades: that people needed farming and settled village life first, before they had the surplus and organization to build monuments. Here, monumental, coordinated construction came first, built by hunter-gatherers, which suggests communal ritual gathering may have helped drive the shift to farming rather than simply following from it.
How we know: Smithsonian Magazine's reporting from the excavation gives the site's dating, its scale, the pillar carvings, and the wild-game bone evidence for a pre-agricultural builder population. UNESCO's official World Heritage Centre listing independently corroborates the date range, location, and hunter-gatherer attribution as part of the site's formal inscription record.
When: About 9,600 to 8,200 BCE (roughly 11,500 years ago) · Where: Germuş mountains, southeastern Turkey · Structure: T-shaped pillars up to 16 ft tall, 7-10 tons, carved with wild animals · Builders: Hunter-gatherers; no evidence of domesticated animals or farming yet
SourcesRelated timelines- Big Bang to Now → · Zoom out: this moment on the 13.8-billion-year timeline
- About 11,500 to 8,500 years ago (roughly 9500 to 6500 BCE)Well documented
Peer-reviewed · 3 sourceswhy?
Best source: Genetic basis of non-brittle rachis in einkorn and barley domestication (peer-reviewed, PubMed Central/NIH)
Cited as a "journal" source (no stronger domain match).Wheat and barley stop scattering their own seed
Long before farming as we would recognize it, people in the Fertile Crescent, especially in what is now southeast Turkey and northern Syria, were cultivating wild einkorn wheat, emmer wheat, and barley. Peer-reviewed genetic research traces the moment these became true domesticated crops to a specific change: wild grass seed heads shatter and scatter their grain naturally, a trait called a brittle rachis, but a mutation produced a non-brittle rachis that kept the grain attached to the plant instead of falling to the ground. That single change meant the plant now depended on people to harvest and replant it. Archaeological evidence places pre-domestication cultivation as early as about 11,500 years ago, with the non-brittle trait becoming dominant in the archaeological record roughly a thousand years or more later, and genetic studies trace the origin of the domesticated trait to the same part of southeast Turkey across both einkorn and barley.
Why it matters: This is the biological hinge of the entire Neolithic Revolution: a single, identifiable genetic change that shifted three founder crops from wild plants that reproduced on their own into crops that could not survive without human harvesting and replanting, binding people and plants together for the first time.
How we know: Two independent peer-reviewed studies, hosted on PubMed Central, trace the domestication of einkorn, emmer, and barley to the Fertile Crescent about 10,000 years ago, identify the non-brittle rachis and loss of natural seed dispersal as the defining genetic marker of domestication, and pinpoint its geographic origin to southeast Turkey through DNA analysis. Researchers continue to debate whether this happened at one core site or was a more diffuse process across several sites in the region, a genuine open question this event does not resolve.
Crops: Einkorn wheat, emmer wheat, and barley · When: Cultivation from about 11,500 years ago; domestication trait dominant within roughly 1,000+ years after · Where: Fertile Crescent, especially southeast Turkey and northern Syria · Key evidence: Non-brittle rachis: a genetic mutation that stops seed heads from scattering their own grain
Sources- Various (peer-reviewed). Genetic basis of non-brittle rachis in einkorn and barley domestication (peer-reviewed, PubMed Central/NIH) (2018) · journal
- Various (peer-reviewed). Domestication and the loss of natural seed dispersal in Fertile Crescent crops (peer-reviewed, PubMed Central/NIH) (2017) · journal
- World History Encyclopedia. Dynamics of the Neolithic Revolution: cereal domestication in the Fertile Crescent (World History Encyclopedia) · reference
- By about 8,200 BCEWell documented
Peer-reviewed · 2 sourceswhy?
Best source: Genomic and zooarchaeological evidence for goat domestication in the Zagros Mountains (Proceedings of the National Academy of Sciences, hosted on PubMed Central/NIH)
Cited as a "journal" source (no stronger domain match).Goats become livestock in the Zagros Mountains
In the Zagros Mountains of western Iran, at a site called Ganj Dareh, researchers combined two kinds of evidence to establish that goats were being managed as livestock, not simply hunted, by about 8,200 calibrated years BCE. The first is demographic: at wild-hunted sites, kills skew toward large adult males, but at Ganj Dareh 60 to 70 percent of male goats were culled young, before two and a half years old, while most females were kept alive well past that age, with females outnumbering males by as much as nearly two to one across every layer of the site, exactly the pattern of a herd being managed for milk and breeding rather than only meat. The second is genetic: ancient DNA from these goats shows signs of captive breeding and shared ancestry with later domestic populations, described by the research team as the oldest confirmed livestock genomes reported to date. In the same layers, sheep bones still showed the profile of a wild, hunted resource, showing that even within one site, goats and sheep were not domesticated on the same timeline.
Why it matters: This is domestication caught in the act, visible in the bones and the DNA rather than argued from later consequences. It marks the beginning of livestock herding as a distinct, deliberate human practice, and the honest complication, that sheep in the same place lagged behind goats, is a reminder that the Neolithic Revolution did not happen as one clean, simultaneous event.
How we know: A peer-reviewed study combining zooarchaeology and ancient genomics, published in the Proceedings of the National Academy of Sciences and hosted on PubMed Central, gives the Ganj Dareh site, the 8,200 BCE date, the age and sex ratio evidence for managed herding, the genetic evidence and its 'oldest reported livestock genomes' claim, and explicitly notes that sheep at the same site remained a hunted, wild resource at that time.
When: By about 8,200 BCE · Where: Ganj Dareh, Zagros Mountains, western Iran · Evidence: Young male culling, female-skewed herds (kill-site demographics); ancient DNA of captive breeding · Caveat: Sheep at the same site were still hunted wild at this date, not yet managed
Sources- Daly et al.. Genomic and zooarchaeological evidence for goat domestication in the Zagros Mountains (Proceedings of the National Academy of Sciences, hosted on PubMed Central/NIH) (2021) · journal
- World History Encyclopedia. Animal Husbandry: the Neolithic domestication of goats, sheep, and cattle (World History Encyclopedia) · reference
- By about 8000 BCEWell documented
Peer-reviewed · 2 sourceswhy?
Best source: Isotopic and proteomic evidence for communal stability at Pre-Pottery Neolithic Jericho (via PubMed Central)
Cited as a "journal" source (no stronger domain match).Jericho raises the world's oldest known wall
Jericho's earliest settlements, drawn by natural springs that could sustain a large population in an otherwise dry landscape, date back to about 9000 BCE. By 8000 BCE the site had grown to about 40,000 square metres, encircled by a stone wall 3.6 metres high and 1.8 metres wide at its base, which World History Encyclopedia calls the oldest known protective wall in the world. Inside that wall stood a stone tower 8.5 metres high and 9 metres wide at its base, built solid enough to contain an internal staircase of 22 steps. Continuing excavation has since turned up stone towers elsewhere that are even older, at a site called Tell Qaramel.
Why it matters: This is monumental construction from a community that had not yet invented pottery, built centuries before writing, wheels, or true cities existed anywhere. It shows that people were capable of large-scale cooperative building projects the moment they settled in one place permanently, not only after farming had matured into full agricultural societies.
How we know: World History Encyclopedia dates Jericho's earliest settlement to about 9000 BCE, its walled town to about 8000 BCE, and gives the specific measurements of both the wall and the internal tower with its staircase, while noting that even older stone towers have since been found at another site.
Earliest settlement: About 9000 BCE · Walled town: By about 8000 BCE, 40,000 square metres · Wall: 3.6 m high, 1.8 m wide at the base · Tower: 8.5 m high, 9 m wide at the base, 22 internal steps
- About 7,400 to 6,200 BCEWell documented
Peer-reviewed · 3 sourceswhy?
Best source: Bioarchaeology of Neolithic Catalhoyuk reveals transitions in health, mobility, and lifestyle in early farmers (PNAS, via PubMed Central)
Cited as a "journal" source (no stronger domain match).Catalhoyuk: a town with no streets
At Catalhoyuk in central Turkey, a Neolithic settlement grew from its first occupation around 7,400 BCE and lasted through about 6,200 BCE, rebuilt on the same spot many times over that span. UNESCO's World Heritage listing calls it a unique streetless settlement: rectangular mudbrick houses were built directly against each other with no streets or alleys between them, and people moved across the rooftops, entering their homes by climbing down a ladder through an opening in the ceiling rather than through a door. At its peak, the excavation project estimates the town held between 3,500 and 8,000 people, and the site is described as illustrating the transition from scattered villages to genuine urban centers, apparently organized on largely egalitarian lines rather than around a ruling elite.
Why it matters: Catalhoyuk shows a real, populous town existing well before anything resembling a city with streets, monuments, or centralized rule. It is a missing middle step: proof that people learned to live in dense, permanent, cooperative settlements long before they organized into the kind of hierarchical urban societies that followed at places like Uruk.
How we know: The Catalhoyuk Research Project's own site pages, drawing on decades of excavation by an international team of universities, give the settlement's founding date, its peak population estimate, and its distinctive roof-access, streetless architecture. UNESCO's World Heritage Centre listing independently corroborates the date range, the architecture, and describes the site's role in the shift from villages to urban centers.
When: About 7,400 to 6,200 BCE · Peak population: Estimated 3,500 to 8,000 people · Architecture: Densely packed mudbrick houses, no streets, entered by ladder through the roof · Significance: Illustrates the shift from villages toward urban centers
Sources- Catalhoyuk Research Project. The Rise and Fall of a Neolithic Town (Catalhoyuk Research Project) (2023) · reference
- Catalhoyuk Research Project. Architecture at Catalhoyuk (Catalhoyuk Research Project) (2023) · reference
- Bioarchaeology of Neolithic Catalhoyuk reveals transitions in health, mobility, and lifestyle in early farmers (PNAS, via PubMed Central) (2019) · journal
- By about 8,700 years ago (roughly 6700 BCE)Well documented
Peer-reviewed · 3 sourceswhy?
Best source: Starch grain and phytolith evidence for early maize in the Central Balsas Valley, Mexico (PNAS, Piperno et al. 2009, via PubMed Central)
Cited as a "journal" source (no stronger domain match).Maize is domesticated in Mexico, a New World origin of farming
Farming was not a single event that spread from one place; it arose independently in several parts of the world, and the clearest proof is in the Americas. In the Central Balsas River Valley of southern Mexico, people domesticated maize from a wild grass called teosinte, specifically Balsas teosinte. Starch grains and phytoliths recovered from grinding tools at the Xihuatoxtla shelter show maize was present there by about 8,700 years ago, and genetic analysis of hundreds of plants independently points to a single domestication in southern Mexico around 9,000 years ago, from teosinte of the Balsas drainage. The researchers note this happened at about the same time as, but entirely separately from, the rise of farming in the Old World.
Why it matters: Maize is the staple that would later feed the civilizations of the Americas, from the Maya to the Aztec, and its domestication is a completely independent invention of agriculture, oceans away from the Fertile Crescent, with no contact between them. It is the strongest single argument that farming was something humans discovered more than once, not a one-time accident.
How we know: Two peer-reviewed PNAS studies, both accessed via PubMed Central, establish this: one reports the starch-grain and phytolith evidence dating maize at Xihuatoxtla to about 8,700 years ago and names Balsas teosinte as the wild ancestor; the other, using genetic microsatellite data from 264 plants, finds a single domestication in southern Mexico about 9,000 years ago from Balsas-drainage teosinte.
When: By about 8,700 years ago (roughly 6700 BCE) · Where: Central Balsas River Valley, southern Mexico · Wild ancestor: Teosinte (Balsas teosinte, Zea mays ssp. parviglumis) · Significance: An independent New World origin of farming, separate from the Old World
Sources- Piperno et al.. Starch grain and phytolith evidence for early maize in the Central Balsas Valley, Mexico (PNAS, Piperno et al. 2009, via PubMed Central) (2009) · journal
- Matsuoka et al.. A single origin of maize from Balsas teosinte, by microsatellite genotyping (PNAS, Matsuoka et al. 2002, via PubMed Central) (2002) · journal
- Genetic, evolutionary and plant breeding insights from the domestication of maize (eLife, via PubMed Central) (2015) · journal
- Rice by about 6700-6300 BCE; millet by about 5800 BCEWell documented
Peer-reviewed · 2 sourceswhy?
Best source: Early farming traditions of China: northern millet and southern rice (peer-reviewed, PubMed Central)
Cited as a "journal" source (no stronger domain match).China domesticates rice and millet, two more independent origins
China gave rise to two more independent farming traditions, split between two great river systems. In the warm, wet Middle and Lower Yangtze valley of the south, people domesticated rice: archaeobotanical evidence shows already-domesticated rice, marked by non-shattering spikelet bases, in the middle Yangtze by about 6700 to 6300 BCE. In the cooler, drier Yellow River valley of the north, the founder crops were millets, chiefly broomcorn millet, cultivated by the Peiligang culture by about 5800 BCE. Researchers describe these as separate northern-millet and southern-rice traditions that only later met and mixed, as rice spread north and millet spread south, by around 4000 BCE.
Why it matters: Rice today feeds more people than any other crop, and its domestication in the Yangtze is one of the most consequential events in human history. Together with the millet farmers of the north, it shows farming arising yet again, independently, adding East Asia to the map alongside the Fertile Crescent and the Americas. How completely independent the two Chinese traditions were from each other is still debated, but that they arose without borrowing from the west is not.
How we know: Two peer-reviewed studies establish this: a PLOS ONE paper dates broomcorn millet in the Middle Yellow River region to about 7800 years before present and rice cultivation across a long following span, and identifies rice as native to the Yangtze. A second peer-reviewed paper, via PubMed Central, describes the northern-millet and southern-rice split, dates already-domesticated (non-shattering) rice in the middle Yangtze to 6300-6700 BC, and notes the active scholarly debate over whether the two arose as fully separate centers.
Rice: Middle/Lower Yangtze valley; domesticated by about 6700-6300 BCE · Millet: Yellow River valley (Peiligang culture); by about 5800 BCE · Evidence: Non-shattering rice spikelet bases; dated crop remains · Debated: Whether north-millet and south-rice were fully separate origins
- From about 6500 BCE across the following two millenniaWell documented
Peer-reviewed · 3 sourceswhy?
Best source: Genomic evidence that farming spread into Europe from Anatolia by migration (PNAS, via PubMed Central)
Cited as a "journal" source (no stronger domain match).Farming spreads into Europe, carried by migrating farmers
Farming reached Europe from the Near East, and ancient DNA has settled a long argument about how. By about 6500 BCE, settled farming villages were established in northwestern and coastal Anatolia, on the threshold of Europe. Genome-wide DNA from early farmers on both sides of the Aegean then revealed an unbroken chain of ancestry linking farmers across central and southwestern Europe back to Greece and northwestern Anatolia. As the study puts it, this is decisive evidence against the idea that farming spread into Europe as ideas alone, without migration of people. The same signature carried deeper into the continent with the Linear Pottery (LBK) culture, which rooted in Hungary about 7,500 to 8,000 years ago and spread within a few centuries as far as the Paris Basin, its farmers genetically distinct from the local hunter-gatherers and carrying substantial Near Eastern ancestry.
Why it matters: This is how the Neolithic Revolution became continental, and it answers a question archaeologists debated for decades: Europe's first farmers were not local hunter-gatherers who picked up the idea, but the descendants of people who migrated in from Anatolia, bringing their crops, animals, and genes with them. It is one of the clearest cases where ancient DNA overturned a long-standing assumption.
How we know: Two peer-reviewed papers, both via PubMed Central, establish this: one reports genome-wide DNA from early farmers around the Aegean showing the unbroken Anatolia-to-Europe ancestry chain and the ~6500 BCE dating of Anatolian farming villages; the other reports ancient DNA from the central European LBK culture showing its Near Eastern affinity and genetic distinctness from indigenous hunter-gatherers.
At Europe's threshold: Farming villages in NW Anatolia by about 6500 BCE · How it spread: By migration of farmers, per genome-wide ancient DNA · Into central Europe: The LBK culture, from Hungary ~7,500-8,000 years ago to the Paris Basin · Key finding: Early European farmers were genetically distinct from local hunter-gatherers
Sources- Various (peer-reviewed). Genomic evidence that farming spread into Europe from Anatolia by migration (PNAS, via PubMed Central) (2016) · journal
- Various (peer-reviewed). Ancient DNA of central European (LBK) farmers shows Near Eastern ancestry (PLOS Biology, via PubMed Central) (2010) · journal
- A three-population wave-of-advance model for the European early Neolithic (via PubMed Central) (2020) · journal
- The Uruk Period, about 4000 to 3100 BCE, writing by about 3200 BCEWell documented
Peer-reviewed · 3 sourceswhy?
Best source: Early urban development in the Near East (Science, via PubMed)
Cited as a "journal" source (no stronger domain match).Uruk: the first city, and the first writing
In the Uruk Period, roughly 4000 to 3100 BCE, cities began to develop across Mesopotamia for the first time, and World History Encyclopedia identifies Uruk, in the southern region of Sumer, in what is now Warka, Iraq, as the most important and influential of them, the largest urban center and the hub of regional trade and administration between about 4100 and 3000 BCE. Uruk is credited with a run of firsts: the origin of the ziggurat, the invention of the cylinder seal used to mark property and sign documents, and, most consequentially, the further development of cuneiform writing by about 3200 BCE. Writing began as pictographs, simple pictures representing objects, pressed with a stylus into wet clay to record temple accounts, such as deliveries of sheep, before evolving into phonograms, symbols that could represent sounds and eventually record language itself, including the city's own later literary tradition centered on its king Gilgamesh.
Why it matters: This is the end point of the whole chain this timeline follows: wild grass became a dependable crop, crops fed permanent villages, villages grew into a dense town at Catalhoyuk, and finally a true city at Uruk needed a way to track its own trade, taxes, and property, and invented writing to do it. Recorded history, in the ordinary sense of names, dates, and documents, begins here.
How we know: World History Encyclopedia's dedicated article on Uruk gives the Uruk Period dates, the city's role as the largest urban center and administrative hub, and its credited innovations including the ziggurat, cylinder seal, and cuneiform. A second World History Encyclopedia article specifically on cuneiform corroborates that Uruk developed and advanced the script by about 3200 BCE, describes the wedge-shaped stylus marks pressed into clay, and gives a concrete early example of a temple accounting record.
Uruk Period: About 4000 to 3100 BCE · Uruk's peak influence: About 4100 to 3000 BCE, largest urban center in the region · Writing: Cuneiform developed and advanced at Uruk by about 3200 BCE · Also credited to Uruk: Origin of the ziggurat; invention of the cylinder seal
Sources- World History Encyclopedia. Uruk: The First Great City (World History Encyclopedia) (2023) · reference
- World History Encyclopedia. Cuneiform: The Writing System That Made History (World History Encyclopedia) (2023) · reference
- Early urban development in the Near East (Science, via PubMed) (2007) · journal
Related timelines- Big Bang to Now → · Zoom out: this moment on the 13.8-billion-year timeline