Neolithic Revolution
The Neolithic Revolution began in Mesopotamia roughly 11,700 years ago, just after the last Ice Age ended. The climate turned warmer. Vast areas flooded as sea levels rose, and some scientists see in this event the basis for the widespread myths of a catastrophic flood sent by gods. Between 12,000 and 6,000 BC, the coastline was pushed inland by as much as 1,000 km. Human cultures across the world were leaving behind the egalitarian lives of nomadic and semi-nomadic hunter-gatherers. In their place came agriculture, settlement, population growth, and increasing social differentiation. V. Gordon Childe gave this transformation its name in his 1936 book Man Makes Himself, calling it a revolution to mark the depth of the change. What did people gain when they stopped chasing food and started growing it? Why did their health get worse even as their numbers climbed? And how did small bands that once competed for resources learn to build monuments together?
Klaus Schmidt argued that the small bands of nomadic hunter-gatherers who dominated human prehistory could never have raised something like Göbekli Tepe alone. Cultivating large stretches of land and erecting monumental art demanded more labour than any autonomous group could muster. So communities that had lived apart, often in competition, chose instead to cooperate. They formed alliances. Some settled and built permanent villages beside their fields.
Aristotle held that humans naturally possessed the capacity to form political alliances, defining Homo sapiens as zoon politikon, the political animal. The source frames this as the hardest of all Neolithic achievements, because chimpanzees, our closest relatives, cannot establish cross-group organizations at all. When a primate group grows too large and splits with nowhere to migrate, the aggression turns into war between the parties until the weaker male side is wiped out. Humans, with heightened consciousness, gained a different option: treaties. Former enemies could agree to share a contested territory and live by agreed rules.
Agriculture and politics, the source insists, differ massively in content and were likely introduced independently of one another. One answers food shortage. The other answers overpopulation crisis. The source compares them to the biblical feud between Cain, the tiller of the ground, and Abel, the provider of meat, two ways of life that clashed over the Mesopotamian steppe before reaching a political agreement under the first city-states. From there agriculture expanded by migration, a process called Neolithisation, reaching northern Europe around 5500 BCE.
Stonehenge began as something far simpler than the monument visitors see today: a circular earthen rampart, or henge, enclosing an open mortuary ground that Renfrew links to a Cause Away Camp. Over a period of 2000 years and more, it was reconsidered, altered, and expanded. The final version used two fundamentally different materials, Sarsen sandstone with a soft surface and hard deep-rock Bluestones, to raise two pairs of formations arranged concentrically in tiers, contrasting in size like mythical giants and blue dwarfs.
Archaeological interpretation reads those differences as two previously unrelated peoples who met in southern England, fought, then agreed to unite under one organization. Seen this way, the finished Stonehenge is a politically conceived work of art. It served two purposes: internally as a gathering place for council meetings and ceremonial rituals, and externally to intimidate rival tribes. Renfrew proposed a mutual arms race to explain why the megalithic structures grew ever more work-intensive over time.
The monument's core holds two arc-shaped formations that point in a clear direction, unlike the enclosing circles. The larger arc carries 10 gigantic Sarsen stones, with extra menhirs aimed along the axis at the summer solstice sunrise. Thorpe read the larger arc as the leading team of a political organization, comparing it to Poseidon's 10 sons ruling Atlantis. The prevailing scientific view ties the targeting instead to a calendar marking the harvest season. Renfrew argued the builders lived in egalitarian groups, basing this on an average of 9 men and 8 women buried per generation, about every 30 years, with no sign of rank in the communal mounds of southern England. Around 1400 BC the monument stopped changing, and traces of deliberate destruction appear, the mark archaeology often finds when one culture displaces another.
Around 9000 BP, agriculture gained momentum, and human activity began selecting cereal grasses, starting with emmer, einkorn and barley. Plants that shed their seeds quickly on maturity were not gathered, not stored, and not sown again. Successive harvests quietly favoured strains that held their edible seeds longer. Daniel Zohary named several species as Neolithic founder crops, stressing wheat, barley and rye, with flax, peas, chickpeas, bitter vetch and lentils arriving a little later.
Gordon Hillman and Stuart Davies showed through experiments with wild wheat that domestication could happen over just 20 to 200 years. Not every attempt succeeded. Rye was tried and abandoned in Neolithic Anatolia, drifted to Europe as weed seeds, and was domesticated there thousands of years later. Wild lentils posed a different problem, since most wild seeds will not germinate in the first year. The earliest evidence of lentil domestication, breaking that dormancy, appears at Jerf el Ahmar in modern Syria, after which lentils spread south to Netiv HaGdud in the Jordan Valley.
At Gilgal I, archaeologists in 2006 found caches of figs, wild barley and wild oats in quantities too large for mere gathering, in strata datable to about 11,000 years ago. Barley itself, domesticated in the Near East around 11,000 years ago, proved highly resilient, growing at high altitude and latitude. By 2,000 BCE it had spread across Eurasia, and genetic analysis shows it travelled by several routes separated in time and space. Irrigation can be traced as far back as the 6th millennium BCE in Khuzistan, and once surpluses grew, granaries let villages store seed and feed expanding populations.
Dogs were among the earliest domesticated animals, tamed in East Asia about 15,000 years ago, followed by sheep, goats, cows, and pigs. As sedentary food production replaced hunting, keeping animals close became more efficient, though a distinction often remained between settled farmers and nomadic herders. Size, temperament, diet, mating patterns, and life span all shaped which species could be tamed. Cows and goats offered renewable protein through milk. Animals also pulled ploughs and yielded leather, wool, hides, and fertilizer.
West Asia supplied sheep, goats and pigs, and was the first region to domesticate the dromedary. Henri Fleisch identified the Shepherd Neolithic flint industry in the Bekaa Valley of Lebanon, suggesting it belonged to the earliest nomadic shepherds, and dated it to the Epipaleolithic or Pre-Pottery Neolithic. As the Middle East grew drier, many farmers were forced to leave, carrying their animals with them and distributing them across Afroeurasia.
Jared Diamond pointed to the east-west axis of Eurasia as the reason domestication spread so quickly. Crops have a narrow climatic range; wheat will not grow in the tropics, just as bananas will not grow in colder climates. Because similar latitudes share similar climates, plants and animals moved easily from the Fertile Crescent across Eurasia and North Africa. Africa's north-south axis blocked the same flow, leaving the African Zebu and the fertile-crescent bovines separated by the Sahara and never introduced into each other's regions.
Maize was domesticated in the Americas beginning about 7000 BCE, alongside squash as early as 6000 BCE and beans no later than 4000 BCE. Potatoes and manioc were domesticated in South America, while Native Americans in the eastern United States domesticated sunflower, sumpweed and goosefoot around 2500 BCE. The term Neolithic is not customarily applied to the Americas, yet the broad pattern matches the Eastern Hemisphere.
Northern China, clustered around the Yellow River and tied to the Houli, Peiligang, Cishan, and Xinglongwa cultures, domesticated foxtail millet and broomcorn millet roughly 8,000 years ago. Soybean followed there 4,500 years ago. In southern China, around the Yangtze, rice was domesticated between 13,500 and 8,200 years ago with paddy field cultivation. One centre sat in the lower Yangtze among pre-Austronesians, marked by stilt houses, jade carving, and boat technologies; another in the middle Yangtze among early Hmong-Mien speakers. Bellwood proposed in 2011 that intensive rice cultivation in Taiwan and the Penghu Islands, possibly overexploited, drove the Austronesian expansion that began around 5,000 BP.
In New Guinea, drainage ditches at Kuk Swamp point to cultivation of taro and other crops back to 11,000 BP, with bananas and sugarcane dating to 6,950 to 6,440 BCE. CSIRO found that taro was introduced into the Solomon Islands for human use from 28,000 years ago, making it the earliest cultivated crop in the world. Carl Sauer had suggested this region as a centre of early agriculture as early as 1952. Africa added its own cradles: the Ethiopian highlands gave coffee, khat, ensete, noog, teff and finger millet, while the Sahel produced sorghum and pearl millet, and West Africa the kola nut, African rice, yams and the oil palm.
Average height for Europeans fell after the transition to farming, from 178 cm for men and 168 cm for women down to 165 and 155 cm. It took until the twentieth century for European height to recover to pre-Neolithic levels. The diet that fed more people was higher in carbohydrates but lower in fibre, micronutrients, and protein. Maize, rich in starch, supplies little iron and too little of the essential amino acids lysine and tryptophan. Cereal-based diets brought shorter stature, higher infant mortality, more infectious disease, and deficiencies that struck bones and teeth.
Disease spread faster once societies settled. Pathogens once adapted to a single host jumped between farmers and their livestock, producing new illnesses, and dense waste-filled settlements bred infection through contaminated food and water. Influenza, smallpox, and measles passed from animals to people. Ancient microbial genomics found progenitors of human-adapted Salmonella enterica in agro-pastoralists up to 5,500 years old across Western Eurasia.
This exchange built a lasting divide. Over roughly 10,000 years of close contact with cows and other mammals, Eurasians and Africans grew more resistant to these diseases than populations beyond those continents. When contact came, the result was catastrophic. 90 percent or more of many American populations died from European and African diseases before recorded contact with explorers or colonists. The Inca Empire kept the llama, but its milk went undrunk and it never shared a closed space with people, so the risk of contagion stayed limited. By contrast, bioarchaeological research found that in Southeast Asian rice-farming societies from 4000 to 1500 BP, the effect of agriculture on dental health was not as harmful as elsewhere.
Raphael Pumpelly proposed the Oasis Theory in 1908, and Childe popularized it in 1928: as the climate dried, people and animals crowded into oases and domestication followed. Later climate data undercut it, showing the region grew wetter, not drier, so it now has little support. Robert John Braidwood answered in 1948 with the Hilly Flanks hypothesis, placing agriculture's origin in the well-watered flanks of the Taurus and Zagros Mountains, where fertile land held plants and animals ready for domestication.
Brian Hayden's Feasting model casts agriculture as a tool of ambition, driven by ostentatious displays of power that demanded large stores of food. Carl Sauer, with Lewis Binford and Kent Flannery, framed it instead through demographics, as a sedentary population pressing against the carrying capacity of its land. David Rindos treated agriculture as an evolutionary adaptation linking plants and humans, beginning with the simple protection of wild plants. Peter Richerson, Robert Boyd, and Robert Bettinger tied its arrival to the stabilizing climate at the start of the Holocene.
Leonid Grinin dated the agricultural revolution to the interval between 12,000 and 9,000 BP, noting that the earliest cultivated plants or domesticated bones reach back even 14 to 15 thousand years. Frank Hole, in A Reassessment of the Neolithic Revolution, observed that the full range of domesticated goats, sheep, cattle and pigs did not appear together until the sixth millennium BCE at Tell Ramad. He urged future investigators to look closely at the western margins of the Euphrates basin, perhaps as far south as the Arabian Peninsula, wherever wadis once carried Pleistocene rainfall runoff.
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Common questions
What was the Neolithic Revolution?
The Neolithic Revolution, also called the First Agricultural Revolution, was the wide-scale transition of many human cultures from nomadic and semi-nomadic hunter-gathering to agriculture, settlement, cross-group organisation, population growth, and increasing social differentiation. V. Gordon Childe named it in his 1936 book Man Makes Himself.
When and where did the Neolithic Revolution begin?
The Neolithic Revolution began in Mesopotamia about 11,700 years ago, after the last Ice Age ended and the climate became warmer. From there it expanded by migration, a process called Neolithisation, reaching northern Europe around 5500 BCE.
Why did human health decline during the Neolithic Revolution?
Neolithic farming diets were higher in carbohydrates but lower in fibre, micronutrients, and protein, causing shorter stature, higher infant mortality, and more infectious disease. Average European height fell from 178 cm for men and 168 cm for women to 165 and 155 cm, and did not recover until the twentieth century.
Which crops were the Neolithic founder crops?
Daniel Zohary identified the Neolithic founder crops, stressing wheat, barley and rye, with flax, peas, chickpeas, bitter vetch and lentils coming a little later. Selective breeding of cereal grasses began with emmer, einkorn and barley around 9000 BP.
Where did the Neolithic Revolution develop independently?
Centres of the Neolithic Revolution emerged independently in West Asia, northern and southern China, New Guinea, the Americas, and three areas of Africa, the Ethiopian highlands, the Sahel and West Africa. Maize was domesticated in the Americas beginning about 7000 BCE, and rice in the Yangtze basin between 13,500 and 8,200 years ago.
How did the Neolithic Revolution spread disease?
As societies settled, pathogens jumped between farmers and livestock, producing new illnesses such as influenza, smallpox, and measles. Over roughly 10,000 years of close animal contact, Eurasians and Africans grew resistant, and when contact came, 90 percent or more of many American populations died from European and African diseases before recorded contact with colonists.
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