Book summary “Prehistory”: summary

Introduction

You live in a historical present, yet millions of years of human experience occurred before the invention of writing. Traditional biblical timelines and antiquarian collecting once reduced human history to a few thousand years. You must look beyond written records to understand how humanity transformed from small hunter-gatherer bands into complex global societies.

Colin Renfrew argues that human cultural evolution over the last sixty thousand years is driven by material engagement and shared symbols rather than genetic change. You will discover how deep time geology and the Three Age system established the immense antiquity of humankind. The book investigates the profound time gap between anatomical modernity and the explosion of human culture, presenting cognitive archaeology as the key to your past.

• How did science unlock deep time?
• Why did cultural innovation lag behind genetic modernity?
• How do material objects shape human thought and society?

1. Discovering Time Depth

Early antiquarianism and biblical chronologies limited human history until uniformitarian geology and the Three Age system established immense time depth.

For centuries, societies relied on religious creation myths and biblical chronologies, leaving no intellectual space for prehistory. Archbishop Ussher calculated that the earth was created in 4004 B.C.E. based on Old Testament generations. Early archaeological excavations were driven by collectors and monarchs seeking classical statuary to illustrate written texts.

King Charles I caused an army of old foreign emperors to land on English coasts in 1625 to adorn his palaces, and Louis XIV imported Italian art for Versailles. Before prehistoric archaeology, stone tools were misidentified as natural phenomena. Zoologist Ulisses Aldrovandi described stone tools as thunder and lightning exhalations conglutinated into a mass and indurated by heat like a brick.

From Creation Myths to Prehistory

James Hutton and Charles Lyell established the uniformitarian principle, proving that earth's strata resulted from gradual natural processes. Hutton published his gradualist approach in Theory of the Earth in 1785, and Charles Lyell published Principles of Geology from 1830 to 1833.

Christian Jürgensen Thomsen became curator of the Danish National Museum of Antiquities in 1816 and organized artifacts into technological stages. His guidebook was translated into English in 1848 and introduced the Three Age system, dividing preliterate history into the stone, bronze, and iron ages.

The Antiquity of Man

Discoveries linking human stone artifacts with extinct animal bones pushed human history far beyond biblical timelines. John Frere submitted flint implements found twelve feet below ground at Hoxne to the Society of Antiquaries in 1797. Boucher de Perthes published his conclusions on hand axes from the Somme gravels in 1847.

Joseph Prestwich and John Evans visited Boucher de Perthes in 1859 and cemented the acceptance of human antiquity. John Evans wrote in his diary that year that he could hardly believe man extended back to days when elephants and rhinoceroses inhabited Britain.

2. Mapping the Human Past

Fossil discoveries and archaeological cultures revealed early hominid species and prehistoric peasant communities across the globe.

The Pleistocene era began approximately 1.8 million years ago and ended twelve thousand years ago with the onset of the Holocene period. Discoveries in the river gravels of the Somme and cave systems in France established that humans lived during geological periods marked by deep glaciations.

Boucher de Perthes found early stone tools in the Somme gravels. Édouard Lartet and Henry Christy excavated Pyrenees and Dordogne caves to uncover flint industries and animal bones.

Ice Age People and Civilizations

Excavations of early human remains proved that modern humans shared the European landscape with entirely different species. Lartet found eighteen human skeletons at Aurignac in 1860. Fossilized remains were also uncovered at Cro-Magnon and the Neander Valley near Düsseldorf.

Researchers uncovered complex urban centers across Mesopotamia, Egypt, the Indus Valley, China, Mesoamerica, and South America. Heinrich Schliemann made famous discoveries at Mycenae in 1874. Sir Leonard Woolley discovered the royal tombs at Ur in 1928 with gold treasures. The Indus Valley civilization declined approximately 1800 B.C.E.

Revolutions in Prehistory

Favorable environmental conditions preserved fragile prehistoric organic materials and provided concrete data on early village life. Receding lake waters or tell stratigraphy allowed the survival of wooden architecture. An exceptionally cold and dry winter in 1853 reduced Lake Zurich water levels and exposed the Obermeilen site. Gordon Childe later uncovered well-preserved stone houses at Skara Brae dated to approximately 3000 B.C.E.

Gustaf Kossinna published Die Herkunft der Germanen in 1911. This work introduced the concept that archaeological assemblages represent specific ethnic groups, although the methods were marred by aggressive nationalist ideology.

Gordon Childe revolutionized archaeological theory by applying economic principles to prehistory in books like The Dawn of European Civilization in 1925 and Man Makes Himself in 1936.

• He defined the neolithic revolution as a major turning point in human history.
• He identified the urban revolution as a second massive structural transformation.
• He showed how plant and animal domestication transformed the human economy.

Systemic shifts in food production led directly to population growth and urban centralization. Environmental and economic pressures drove these developments, moving archaeological explanation far beyond descriptive typologies.

3. Dating and World Prehistory

Radiocarbon dating initiated a scientific revolution that overturned diffusionism and enabled the first global outlines of prehistory.

The Radiocarbon Revolution

You can measure the decay of carbon-14 isotopes in organic remains to determine their absolute age. In 1947, Willard Libby established that atmospheric carbon-14 is absorbed by living plants and animals in a constant ratio. Upon death, this radioactive isotope decays with a half-life of 5730 years. You can calculate elapsed time by comparing remaining carbon-14 to stable carbon-12. Libby won a Nobel Prize for his method in 1960, with an outer time limit reaching 50,000 years ago.

Sir Mortimer Wheeler recounted how Lord Cherwell first shared this discovery in 1949 after returning from America. Earlier scholars like Oscar Montelius and Gordon Childe relied on the principle of ex Oriente lux, assuming European innovations derived from the Near East. Absolute radiocarbon dates proved European structures like Newgrange and Maltese temples predate Egyptian pyramids. In neolithic Britain and the Vinca tell mound, initial radiocarbon dates came out a millennium older than expected.

Dating methods utilizing longer radioactive half-lives and climatic proxies enable researchers to establish chronologies for the paleolithic and geological epochs. Potassium-argon dating measures the decay of potassium-40 in volcanic ash layers, with a half-life of 1.3 billion years. Additionally, oxygen isotope ratios in deep-sea foraminifera shells and polar ice cores provide fine-grained climatic sequences tied to glaciations. Volcanic ash layers underlying fossil sites in the Olduvai Gorge are dated using potassium-argon analysis.

Constructing World Prehistory

The availability of radiocarbon dating enabled the first global outlines of prehistory. In 1961, Grahame Clark published World Prehistory: An Outline, systematically using radiocarbon data to survey human history across 2000 generations. This work brought Southeast Asia, Australia, and the Pacific into standard archaeological frameworks alongside Europe and the Americas. Clark highlighted pioneers like John Mulvaney in Australia and Jack Golson in New Guinea as early leaders.

Fossil evidence and radiometric frameworks confirm that the human story began in Africa with Australopithecus, followed by successive hominid dispersals. You can trace divergence from common ape ancestors to 8 to 6 million years ago. The genus Homo emerged from African ancestors, with Homo habilis appearing 2.5 million years ago alongside the first stone tools. Louis and Mary Leakey discovered Homo habilis at Olduvai Gorge, while volcanic ash at Laetoli preserved 3.5-million-year-old hominid footprints. Early hominid dispersals out of Africa are documented at Dmanisi by 1.7 million years ago.

Post-war archaeological research shifted toward problem-oriented regional surveys to investigate independent origins of agriculture and complex urban societies. Researchers utilized environmental approaches, flotation for seeds, and settlement-pattern analysis to track transitions to food production. Robert Braidwood excavated Jarmo on the hilly flanks of the fertile crescent, while Kathleen Kenyon uncovered early neolithic layers at Jericho. Kent Flannery found maize domestication at Guilá Naquitz in 4300 B.C.E., while MacNeish explored early maize use in the Tehuacán Valley around 3500 B.C.E.

Prehistoric archaeology evolved through a theoretical debate between processual approaches seeking scientific laws and post-processual approaches emphasizing agency. The New Archaeology, championed by Lewis Binford in the late 1960s, applied rigorous scientific hypotheses and ecological models. Binford published a 1968 model linking post-Pleistocene adaptations to the exploitation of migratory fowl and anadromous fish. In contrast, 1980s post-processualists like Ian Hodder rejected strict scientism, focusing instead on hermeneutics, symbolism, gender, and individual human agency.

Comparative archaeology seeks to identify recurrent evolutionary patterns by contrasting independent trajectories to complex civilization. Robert Adams pioneered this field, which Bruce Trigger expanded in his 2003 treatise Understanding Early Civilizations. Trigger analyzed eight early civilizations including Sumer, Egypt, North China, the Maya lowlands, the Basin of Mexico, and coastal Peru to observe common trends. Chris Scarre edited the 2005 volume The Human Past to synthesize these global developments.

4. The Sapient Paradox

A massive time gap exists between the emergence of the human genotype and the appearance of complex cultural innovations like agriculture.

Although anatomically modern humans and their genetic capacities appeared long ago, major developments such as the agricultural revolution did not happen until tens of thousands of years later. You can see that cultural takeoff was not driven by sudden DNA mutations. The time gap between the first appearance of Homo sapiens in Europe around 40000 years ago and the earliest agricultural revolution around 10000 years ago spans a lag of 30000 years.

The Upper Paleolithic Transition

Archaeologist Paul Mellars cataloged specific changes in stone tool production, bone artifacts, regional diversification, personal adornment, and art that distinguished the Upper Paleolithic from the Mousterian culture. In 1991, Paul Mellars listed these behavioral shifts:

• shift in the production of stone tools from a flake technology to standardized blade manufacture;
• increase in the variety and complexity of stone tools;
• appearance of extensive artifacts made out of bone, antler, and ivory;
• increased tempo of technological change with regional diversification;
• appearance of beads, pendants, and personal adornments;
• appearance of naturalistic art in carvings and painted caves;
• significant changes in economic and social organization.

Paul Mellars listed shifts from flake to blade technology, the appearance of bone and ivory artifacts, and painted caves like Lascaux, Altamira, and Grotte Chauvet.

Genetics and the Human Revolution

Fossil and artifact evidence decisively relocates the emergence of anatomically modern humans and early behavioral innovations to Africa. While early studies focused on Europe, fossil sites in Ethiopia and Israel show that the human revolution occurred in Africa tens of thousands of years earlier. At Blombos Cave in South Africa, researchers found Middle Stone Age bone points, seventy-five-thousand-year-old engraved red ochre fragments, and perforated shell beads.

Human evolution transitions from a genetic co-evolutionary speciation phase into a culturally driven tectonic phase.

Before 100000 years ago, human evolution involved genetic and cultural co-evolution during the speciation phase. After the out-of-Africa dispersal, the human genome remained largely fixed. Subsequent behavioral innovations were socially transmitted rather than genetically determined. Francis Crick and Jim Watson discovered the double helix in 1953, paving the way for molecular genetics and mitochondrial DNA analysis applied by researchers like Peter Forster in 2004.

5. Toward a Prehistory of Mind

Genetic change cannot account for human behavioral evolution over the past 60000 years during the tectonic phase. While speciation and earlier milestones had genetic bases, contemporary molecular genetics shows that all modern humans are born equal within normal distribution ranges. The rapid pace of cultural change and innovation after the out-of-Africa dispersal is driven by non-genetic factors, making traditional biological evolution models inadequate.

Cognitive archaeology and material engagement theory demonstrate that human thought operates through embodied symbols rather than genetic evolution.

Applying strict Darwinian evolution or Richard Dawkins' concept of memes to cultural transmission during the tectonic phase is misguided. Although Darwinian evolution explains biological origins, cultural transmission is not governed by the laws of genetics. Richard Dawkins' notion of the meme creates an oversimplified analogy that ignores the cognitive and learning processes required for human cultural history.

Cognitive Stages and Symbols

Merlin Donald outlined stages starting with episodic primate cognition and mimetic nonverbal communication. This was followed by the mythic stage of complex language, the material symbolic stage, and finally the theoretic stage characterized by paradigmatic thought and external memory via writing. The relevant stages span these timelines:

• 4 million to 400000 years ago for the mimetic stage;
• 500000 years ago to the present for the mythic stage;
• 3500 B.C.E. for the appearance of the first writing systems initiating the theoretic stage.

Cognitive archaeology studies past thought processes through material remains, analyzing how societies use symbols involving category formation and representation. Symbols involve radical abstractions of forming categories and representing them, operating through the formula where a signifier represents a signified thing within a specific context.

Many significant symbols and concepts are grounded in an underlying material reality and physical engagement rather than being purely abstract mental constructs. New symbolic relationships discover new physical realities, such as the concept of measurable weight which first had to be apprehended physically by holding heavy objects. Such artifacts act as constitutive symbols where the material substance and cognitive element coexist.

Stone cubes discovered in the Indus Valley civilization were used as weights to quantify an inherent property of mass.

The Extended and Distributed Mind

The human mind is not confined entirely inside the brain but is embodied in physical action, extended through tools, and distributed across social groups. Intelligent action requires physical engagement through the body, such as hands perceiving weight. Furthermore, purposive action extends beyond the body through tools like a blind man's stick or a draftsman's pencil, and can be distributed collectively among multiple individuals working together on shared tasks.

A potter at the wheel creates a vessel through a process residing in the hands, body, wheel, and clay rather than the brain alone.

Material engagement theory views past actions as processes of informed, intelligent interaction between humans and the physical and social world. This approach transcends the dualism between mind and matter by recognizing that intelligent action simultaneously applies cognitive and physical aspects. Innovations rely on culturally determined patterns of learned behavior and agency rather than genetic programming.

The terra-cotta figures of Gravettian Pavlov and Dolní Vestonice in Upper Paleolithic Europe illustrate early pyrotechnology and engagement with fired materials, leading toward cases such as 4500 B.C.E. where the use of gold and intrinsic value can be documented at Varna in Bulgaria.

Following the out-of-Africa dispersal, isolated human populations followed diverse, independent cultural trajectories rather than a single uniform path of progress. Because continents and regional groups were largely out of contact, there was no single neolithic or urban revolution. Independent innovations like weight systems, value concepts, and agriculture emerged across different trajectories, shaped by local social contexts.

Mesoamerican cultures utilized wheeled toys for play but did not apply the wheel to practical transportation purposes until European invasions.

Human languages form complex symbolic systems that diverge over time through isolation, while major language family distributions are often linked to farming dispersals. When social groups separate, their languages gradually diverge through word loss until resemblances become minimal after 10000 years. Beyond population dispersals, language distributions are influenced by language replacement models driven by agricultural expansion, elite dominance, and convergence.

6. Constructing the Community

The most decisive turn in prehistory was an increase in human engagement with the material world mediated by symbols, which began with the development of sedentism. Year-round permanent residence in established communities required support from farming and domesticated plants and animals. However, this process cannot be viewed in purely materialist or ecological terms. It was mediated through human concepts and institutional facts, highlighting the primary role of cognition.

The appearance of settled village life preceded the establishment of a secure agricultural regime, depending initially on abundant wild food resources.

Research in Western Asia shows that permanent residences and village structures were built by foragers before the cultivation of cereal crops. This shift eliminated the need to travel light. You could then open the way for heavy equipment, permanent installations, food storage, and property control.

The Early Natufian culture in the Levant developed the world's first settled villages featuring pit-houses, burials, and heavy stone grinding tools while still based on foraging. This occurred around 9000 B.C.E. for the Pre-Pottery Neolithic A settlement at Jericho and other Levant sites. Peter Wilson noted that houses act as powerful practical symbols that synthesize natural symbols of the body and landscape.

Monuments and Ethnicity

Many prehistoric societies achieved impressive collective works through coordinated labor without centralized leadership, prominent individuals, or rich burials. Termed group-oriented societies, these communities engaged in large-scale construction efforts driven by management capacity rather than an autocrat. They built monumental architecture that served social, conceptual, and ritual functions.

Megalithic chambered cairns, henge monuments like Avebury and Stonehenge, and structures at Chaco Canyon or coastal Peru required massive labor investments up to tens of millions of work hours without displaying high-status individual graves. These constructions date to 3500 B.C.E. for chambered cairns of northwestern Europe, taking ten thousand work hours for modest chambered cairns, one million work hours for larger henge monuments, and tens of millions of work hours for Silbury Hill and Stonehenge.

Monuments did not merely reflect a pre-existing social order; their construction actively called new social units and communities into being.

The material engagement approach demonstrates that building a communal monument required pooling labor and organizing feasts. This established a permanent spatial focus and forged a coherent living community where none existed previously.

Hierarchies of monuments and shared community living fostered the historical emergence of broader ethnic loyalties and distinct group identities. Rather than fixed genetic groups, ethnicities were formed through living together, shared collective endeavors, and participation in regional ritual centers. Monument scale scaled from local cairns up to massive regional ceremonial complexes.

In Orkney, local chambered cairns requiring ten thousand work hours and Wessex long barrows were complemented by major central stone circles like the Ring of Brodgar requiring one hundred thousand work hours to serve the entire island population, while the construction of Stonehenge reached thirty million work hours.

7. Worldly Goods

The ascription of value to commodities and the emergence of institutional money drove social inequality and early state societies.

Paleolithic hunter-gatherer societies were largely egalitarian. They did not ascribe high value to durable materials like gold, amber, or fine stones, using them for adornment only much later.

Post-agricultural trajectories show the development of ranked communities and class societies. This shift was fueled by the perception that material goods possess intrinsic value, linking high material value directly with high human rank.

Exchange and Metallurgy

Polished stone axes made from exotic minerals served symbolic functions of social storage and reciprocity rather than practical utility. Jadeite axes sourced from the Alps were traded up across France to Britain and found as far north as Scotland during the neolithic period.

Aspiring leaders in pre-state societies use gift-giving, feasting, and conspicuous consumption to establish asymmetrical relationships of obligation and status. Roy Rappaport published Pigs for the Ancestors in 1968 detailing Tsembaga ecology and economy.

The Late Neolithic cemetery of Varna in Bulgaria provides the earliest appearance of gold in quantity in the archaeological record, alongside sophisticated copper artifacts and long flint blades. The Varna cemetery features graves containing large quantities of gold beads, ornaments, marine shells, and exceptionally long flint blades dating to the fifth millennium BCE.

Early States and Alternative Trajectories

The development of commercial exchange depends on the consensus that specific materials have quantifiable value per unit of measure. Prehistoric Aegean and Indus Valley civilizations utilized standardized balance weights, sometimes marked with signs indicating numerical multiples.

Early state societies are generally class-based urban entities characterized by hereditary rulers, legitimate force, and the iconography of power and conquest. The Narmer Palette in Egypt and the Stele of Vultures in Sumer depict the pharaoh and rulers smiting enemies and humiliating captives.

The Indus Valley civilization demonstrates that complex early state societies could develop high urban organization without conspicuous royal display or centralized individual aggrandizement. Leading specialist Gregory Possehl notes that the Mature Harappan civilization is a faceless culture without the archaeological evidence of palaces or royal abodes found in Mesopotamia or Egypt.

8. Appropriating the Cosmos

Prehistoric monuments and early state capitals aligned architecture with celestial bodies to legitimize centralized political and religious power.

Through material engagement, societies formulated structures of reality that commanded massive labor inputs. By aligning monuments with celestial events, builders harnessed cosmic workings for ritual practices.

Stonehenge in southern England has a central axis aligned with the midsummer sunrise and midwinter sunset. The construction and early use of Stonehenge took place from c. 3000 to 2000 B.C.E., with the monument erected around 2500 B.C.E.

Passage Graves and Solstices

Early passage graves used architectural precision to channel sunlight into burial chambers during solstices. Builders constructed circular stone chambers under large earthen mounds, incorporating roof boxes that allowed the rising sun's rays to penetrate deep into the interior.

Newgrange in Ireland, dating to 3300 B.C.E., features a passage meticulously aligned with the midwinter sunrise.

Royal Burials and Immanence

Elaborate royal burials in early states utilized sacred wealth and cosmic iconography to establish the divine status of the ruler. Funerary monuments linked the deceased ruler directly to supernatural forces and underworld journeys.

In the Maya state of Palenque, King Pacal began constructing his tomb in 675 C.E. Alberto Ruz Lhuillier discovered Pacal's tomb in 1952 following the king's death in 683 C.E.

9. From Prehistory to History

Literacy, alphabetic scripts, and monetary systems transformed human thought, paving the way for modern scientific and philosophic inquiry.

Denise Schmandt-Besserat demonstrated that neolithic clay counters used for reckoning in Mesopotamia gradually evolved into computational notations on proto-literate clay tablets, eventually forming ideographic scripts and cuneiform.

The proto-literate clay tablets of Uruk in southern Mesopotamia date to around 3500 B.C.E., capturing early computational notations.

Literacy and the Alphabet

The primary impact of literacy is not merely recording historical events, but opening entirely new fields of philosophy, science, and explicit theory. External symbolic storage allowed humans to process information differently and develop exact sciences.

Herodotus wrote his Histories in classical Greece in the fifth century B.C.E., long after literacy had already begun in Mesopotamia nearly three millennia earlier.

The alphabetic script revolutionized communication by using a tiny set of signs to represent all spoken sounds, making near-universal literacy possible.

• The Roman alphabet widely used today has only twenty-six signs.
• The Greek alphabet has twenty-four signs.

The Future of Prehistory

The future of prehistory lies in combining archaeological fieldwork with molecular genetics, neuroscience, and cognitive archaeology to explain cultural evolution. You can track human dispersals by utilizing independent radiometric timescales and DNA research.

Geneticists debate the divergence in signals between mitochondrial DNA suggesting a small migration out of Africa and nuclear DNA suggesting an effective population of around 10,000.

10 Key Ideas

1. Uniformitarian geology and the Three Age system replaced biblical chronologies by establishing the immense antiquity and deep time depth of humankind.
2. Willard Libby's radiocarbon dating initiated a scientific revolution that overturned diffusionism and enabled the construction of world prehistory.
3. A massive time gap of tens of thousands of years exists between the anatomical emergence of modern humans and the appearance of complex cultural innovations like agriculture.
4. Fossil and artifact evidence decisively relocates the origin of anatomically modern humans and early behavioral innovations to Africa before subsequent global dispersals.
5. After the out-of-Africa dispersal, human evolution transitioned from a genetic co-evolutionary speciation phase into a culturally driven tectonic phase.
6. Material engagement theory and cognitive archaeology demonstrate that human thought operates through embodied symbols and externalized tools rather than genetic evolution alone.
7. The appearance of settled village life preceded the establishment of a secure agricultural regime, depending initially on abundant wild food resources and permanent architecture.
8. The ascription of value to durable commodities and the emergence of institutional money, standardized weights, and metallurgy drove social inequality and early state societies.
9. Prehistoric monuments and early state capitals utilized astronomical alignments and architecture with celestial bodies to legitimize centralized political and religious power.
10. The invention of literacy, alphabetic scripts, and external symbolic storage transformed human thought and information processing, paving the way for explicit philosophy and science.