Technology & Material Culture – Comprehensive Bullet-Point Notes

Technology and Material Culture

• Archaeology = “study of the remains of human material engagement”; progress often measured technologically

• C. J. Thomsen’s Three-Age system: $\text{Stone} \rightarrow \text{Bronze} \rightarrow \text{Iron}$ (Stone further split into Paleolithic, Mesolithic, Neolithic)

• Artifacts = basic means for humans to act on environment; lasers & computers trace back to earliest tools

• Key investigative lenses: purely archaeological record, laboratory science, ethnography/ethnoarchaeology, experimental archaeology, & consultation with living craftspeople

• Industrial archaeology assists for the last $\approx$ $\,2\text{–}3\,$ centuries, adding oral history & photographs

Preservation Bias & Survival of Evidence

• Fragile organics (wood, bone, textile) rarely survive; special contexts = water-logged, frozen, arid sites

• Stone dominates Paleolithic sites; e.g., Sutton Hoo boat imprint, Wetwang wheel ($12$ spokes) via polystyrene foam

• “Pseudomorphs”: voids left by vanished objects, e.g., $1\,\text{m}$ wooden stick at Abric Romani ($\sim$ $50{,}000$ BP)

• Rock art & skeletal trauma record vanished tools (boomerang stencils, sword-cuts on bone)

Distinguishing Artifacts from “Geofacts”

• Lower Paleolithic debate on eoliths: human bulbs of percussion vs. irregular natural fractures

• Context crucial: association with butchered bone, controlled patterns, etc.

• Primates complicate criteria: chimp & capuchin nut-cracking stones may mimic early tools

Ethnographic Analogy

• General: abundant local materials for expedient tools; curated implements rarer archaeologically

• Specific: Tairona winged pendants re-identified as elbow rattles via modern Kogi practice

• Must ensure ecological & cultural continuity when applying analogies

Experimental Archaeology & Craft Knowledge

• Stone walls ⇄ stonemasons; timber buildings ⇄ carpenters; forge ⇄ blacksmiths

• Experiments replicate chaîne opératoire & tool performance; provide time, skill, error rates

Unaltered Materials – STONE

Raw-Material Acquisition & Manufacture

• From $3.3$ Ma (Lomekwi) to $20{,}000$ BCE pottery horizon, lithics dominate

• Production sequence: core selection ⇒ primary flakes (cortex) ⇒ trimming flakes ⇒ retouch (secondary flakes)

• Flakes often main cutting implements (Toth), cores by-products

Evolution of Stone Technology (see diagram 8.7)

1. Oldowan choppers & flakes ($\approx$ $5$ cm cutting edge per $500\,\text{g}$ chert)

2. Acheulian bifaces—symmetrical hand-axes ($20$ cm edge)

3. Levallois prepared-core (~$100$ cm edge)

4. Upper Paleolithic blade-punch technique (~$300 \text{–} 1{,}200$ cm edge)

5. Mesolithic microliths: maximal edge economy

Analytical Techniques

• Replication: Bordes, Crabtree (Folsom flute via chest-crutch press), heat-treatment experiments (Florida cherts turn pink $\ge$ $240\,^{\circ}!\text{C}$)

• Refitting: re-assemble débitage (Etiolles core $N103$ = $124$ pieces) ⇒ workspace & movement

• Microwear: Semenov ⇒ Keeley blind tests; distinguishes polish on wood, hide, bone, meat, plant; SEM & striation orientation (Okazaki)

• Microdebitage: <$1$ mm “sawdust” maps precise knapping spots

Site Case Studies

• Pedra Furada (Brazil): $54$ radiocarbon dates $50{,}000 \text{–} 5{,}000$ BP; Parenti criteria = <$3$ natural flakes/pebble ⇒ $900$ clear Pleistocene tools

• Rekem (Belgium): $\sim$ $25{,}000$ flints; refitting + microwear reconstruct hide-working zones, projectile maintenance, spatial integrity despite vertical disturbance

• Boxgrove experiment: $9$ replica hand-axes efficient deer butchery

Megalithic Extraction, Transport & Fitting

• Neolithic flint mines (Spiennes, Grimes Graves, Rijckholt—> $\sim$ $5{,}000$ shafts, $153$ M axes)

• Easter Island: unfinished moai, $6$ carvers could finish $5\,\text{m}$ statue in $\sim$ $1$ yr

• Aswan obelisk: $42\,\text{m}$, $1{,}168$ t; dolerite hammering $5$ mm/hr; $400$ workers $15$ mo

• Transport hypotheses: Inca ramps (Protzen), Egyptian sled depiction (Djehutihotep, $90$ pullers), Pavel’s trilithon & pukao lever experiment—$10$ people, $3$ days

• Inca polygonal masonry: bounce-hammer dressing; fitting in < $2$ h; hammer scars & handling lugs preserved

Other Unaltered Materials

Bone, Antler, Shell

• Earliest bone tools contentious; Swartkrans bone diggers (termite foraging wear)

• Glory’s wear analysis ⇒ Paleolithic antler batons rubbed by thongs; Campana proof of shaft-straightening

• Kasteelberg (South Africa, $\approx$ $950$ CE): full chaîne opératoire of bone points from eland metapodials

• SEM varnish replicas distinguish sawing vs. gouging vs. grinding perforations (Francis; d’Errico criteria)

Woodworking

• Beaver-cut vs. stone-cut facets (Coles)

• Somerset Levels tracks: Neolithic stone-ax “dished” vs. Bronze stepped facets; coppiced rods; $\ge$ $10$ axes on one track

• Watercraft: Kyrenia $4^{\text{th}}$-century BCE mortise-tenon; Uluburun $14^{\text{th}}$-century BCE same tech; Khufu ship reassembly; Greek trireme “Olympias” replica $170$ rowers

Synthetic Materials & Pyrotechnology

Fire Control Milestones

• Hearths $\sim$ $1.5$ Ma (Swartkrans) ⇒ heated flint, hardened spears

• Upper Paleolithic ceramics: Dolní Věstonice figurines fired $500 \text{–} 800\,^{\circ}!\text{C}$ then exploded (ritual)

• Neolithic Near Eastern bread ovens $\sim$ $8000$ BCE enable controlled atmospheres

Ceramics

• Constituents: clay + temper (shell, sand, grog); Bronitsky & Hamer: crushed burnt shell ↑ heat-shock resistance

• Forming: coil/slab vs. wheel (post-$3400$ BCE Mesopotamia)—spiral striations diagnostic

• Firing clues: vitrification > $900\,^{\circ}!\text{C}$; black core = low temp/reducing open fires; Kingery–Frierman reheating of Karanovo sherd ⇒ original $\approx$ $700\,^{\circ}!\text{C}$

• Petrographic thin-section & heavy-mineral analysis trace origins; British Neolithic bowls traded $\sim$ $100$ km

• Ethnographic pottery learning: Hohokam rigid correction vs. Mimbres child participation (Crown study)

Faience & Glass

• Faience: quartz core + alkaline glaze; NAA distinguishes English vs. Czech vs. Egyptian Bronze-Age beads (tin vs. cobalt)

• Glass recipe: $75\%$ silica + $15\%$ soda + $10\%$ lime; first vessels $\sim$ $1500$ BCE Egypt (core forming); glass-blowing invented $\approx$ $50$ BCE Rome

• Sayre & Smith OES typology: 2\,nd-millennium BCE high-Mg; Hellenistic antimony-rich; Roman Mn-rich

Metallurgy – Non-Ferrous Metals

• Copper chaîne: native shaping ⇒ annealing ⇒ oxide ore smelting ⇒ casting ⇒ alloying (tin $\approx$ $10\%$ ideal) ⇒ sulfide ore smelting ⇒ lost-wax casting

• Metallography (cross-sections) reveals hammer vs. cast; e.g., Ali Kosh bead cold-worked native copper

• Lost-wax (cire perdue): wax model ⇒ clay mold ⇒ burn-out ⇒ pour; Quimbaya, Shang China piece-molds, Moche fine art

• Batán Grande furnaces: $\sim$ $900$ – $1532$ CE; tuyère-blown charcoal, $1100\,^{\circ}!\text{C}$; prill extraction; slag-grinding on batanes

• Electro-chemical gold plating (Loma Negra): $0.5$–$2$ µm Au layer on Cu via boiling corrosive salt solution + anneal $650$–$800\,^{\circ}!\text{C}$

Silver, Lead, Platinum

• Cupellation: oxidize Pb ⇒ litharge absorbs into bone-ash hearth; Romano-British Silchester hearth extracted Ag from debased coins

• Río Tinto slag heaps $16 \text{–} 20$ Mt indicate major Phoenician silver industry $8^{\text{th}}$–$7^{\text{th}}$ BCE

• Platinum worked in Ecuador $2^{\text{nd}}$ century BCE; melting feat only matched $19^{\text{th}}$-century Europe

Iron & Steel

• Iron reduction: bloomery $\approx$ $800\,^{\circ}!\text{C}$ in charcoal + bellows; forge ⇒ wrought iron

• Carburization (pack hardening) adds $0.3$–$1.2\%$ C ⇒ early steel; SEM shows dark hard edge vs. light core

• Haya (Tanzania) furnaces: cone $1.4\,\text{m}$, tuyères + goatskin bellows; possible preheated blast $\ge$ $1300\,^{\circ}!\text{C}$; produced medium-carbon steel $1500$–$2000$ BP

• China achieves cast iron $\approx$ $6^{\text{th}}$ BCE; Europe delays > $1000$ years

Analytical & Imaging Techniques

• Light & electron microscopy, SEM, ESR, TL, petrology, OES, AAS, NAA, XRF, PIXE

• Varnish & silicone surface replicas for delicate engravings & microwear

• DStretch & IR photography enhance rock art pigment layers

• 3-D laser & optical profiling = non-contact engraving study

Ethical, Philosophical & Practical Implications

• Recognition of indigenous knowledge (craftsperson insight) enriches interpretation

• Preservation bias urges caution: absence ≠ non-existence (e.g., missing textiles)

• Experimental replication demonstrates human ingenuity—negates “alien” explanations for monuments

• Craft specialization, apprenticeship, and knowledge transfer (learning frameworks) influence cultural variability observable in artifact sequences

Technology and Material Culture

• Archaeology = “study of the remains of human material engagement”; it's an interdisciplinary field that investigates human past through material remains. Progress is often measured technologically, reflecting evolving human capabilities and societal complexity.

• C. J. Thomsen’s Three-Age system: A foundational chronological framework for prehistoric periods based on the dominant material used for tools: $\text{Stone} \rightarrow \text{Bronze} \rightarrow \text{Iron}$ (Stone Age is further split into Paleolithic, Mesolithic, Neolithic periods, reflecting increasingly sophisticated stone technologies).

• Artifacts = basic means for humans to act on environment; these are any objects modified by human activity. From the earliest chipped stone tools to modern lasers and computers, they represent progressive technological development and human ingenuity.

• Key investigative lenses for understanding material culture:

  • Purely archaeological record: Analyzing artifacts and their contexts as found in excavations.

  • Laboratory science: Application of scientific techniques (e.g., chemical analysis, microscopy, dating) to materials.

  • Ethnography/Ethnoarchaeology: Studying living cultures to draw analogies, or observing how modern societies create and use material culture, to understand past behaviors.

  • Experimental archaeology: Replicating ancient technologies and processes to understand their feasibility, effort, and outcomes.

  • Consultation with living craftspeople: Gaining direct insights from contemporary artisans who employ traditional methods, informing interpretations of ancient craftsmanship.

• Industrial archaeology assists for the last $\approx$ $\text{2–3}$ centuries, integrating historical records like oral history and photographs with material remains to understand manufacturing and industrial sites.

Preservation Bias & Survival of Evidence

• Fragile organics (wood, bone, textile, leather) rarely survive in most archaeological contexts due to decomposition by microorganisms.

• Special contexts allowing their preservation include: water-logged (anaerobic conditions prevent decay), frozen (low temperatures inhibit microbial activity), and arid sites (lack of moisture prevents decay).

• Stone dominates Paleolithic sites because of its durability; examples of extraordinary preservation include the Sutton Hoo boat imprint, where an entire ship's shape was preserved as a soil stain, and the Wetwang wheel ($12$ spokes) identified by its void, which was then cast in polystyrene foam.

• “Pseudomorphs”: These are voids left by vanished organic objects that have decomposed, but whose original shape is preserved by surrounding sediment, e.g., a $1\,\text{m}$ long wooden stick at Abric Romani ($\sim$ $50{,}000$ BP) identified by its impression.

• Rock art & skeletal trauma record vanished tools: Boomerang stencils in Australian rock art indicate the use of these wooden tools, and sword-cuts on ancient bones provide direct evidence of metal weaponry, even if the tools themselves haven't survived.

Distinguishing Artifacts from “Geofacts”

• Lower Paleolithic debate on eoliths: Early crude stone flakes that sparked controversy over whether they were primitive human tools or naturally fractured stones. Key to distinguishing them is the presence of a bulb of percussion (a conchoidal fracture indicative of human striking) vs. irregular natural fractures caused by geological processes.

• Context crucial: Artifacts are identified by associations with clear signs of human activity, such as their presence with butchered bone, controlled patterns of flaking, or evidence of use-wear.

• Primates complicate criteria: Studies of chimpanzee and capuchin monkeys using stones for nut-cracking demonstrate that non-human primates can create stone fragments that mimic early hominin tools, requiring careful analysis to confirm human agency.

Ethnographic Analogy

• General: Observations suggest that ancient people likely used abundant local materials for expedient (quickly made, single-use) tools, which are less likely to be curated and thus rarer archaeologically. Curated (valuable, reused) implements are fewer but more likely to be recovered.

• Specific: The re-identification of Tairona winged pendants as elbow rattles was achieved by observing the modern Kogi practice of using similar objects for ceremonial purposes, demonstrating how ethnographic insights can clarify artifact function.

• Must ensure ecological & cultural continuity when applying analogies: Analogies are strongest when the modern and ancient cultures share similar environmental conditions and cultural practices relevant to the technology in question, to avoid misinterpretations.

Experimental Archaeology & Craft Knowledge

• Experiments demonstrate how ancient structures were built: Stone walls can be understood by working with stonemasons; timber buildings by working with carpenters; and metal objects by working with blacksmiths.

• Experiments replicate chaîne opératoire: This refers to the entire sequence of operations in the production of a tool or object, from raw material acquisition to final discard. Experiments provide data on tool performance, the time required for fabrication, the skill levels involved, and typical error rates, offering quantitative insights into ancient technological processes.

Unaltered Materials – STONE

Raw-Material Acquisition & Manufacture

• From $\text{3.3 Ma}$ (million years ago) at Lomekwi (earliest known stone tools) to the $\text{20,000 BCE}$ pottery horizon, lithics (stone tools) dominate the archaeological record as primary evidence of human technology.

• Production sequence:

  • Core selection: Choosing suitable raw material, often nodules of flint or chert.

  • Primary flakes (cortex): Initial removal of the outer, weathered surface (cortex) of the nodule.

  • Trimming flakes: Further shaping of the core or initial flakes to create a desired form.

  • Retouch (secondary flakes): Fine working of edges to sharpen or shape the working part of the tool.

• Flakes often main cutting implements (Toth): Research by Nicholas Toth demonstrated that the sharp edges of waste flakes, rather than the cores themselves, were often the primary cutting tools in early hominin assemblages. Cores were often by-products of flake production.

Evolution of Stone Technology (see diagram 8.7 in original source for visual representation)

1. Oldowan choppers & flakes ($\approx$ $\text{5 cm}$ cutting edge per $\text{500 g}$ chert):

   • Earliest widely recognized tools, associated with Homo habilis.

   • Characterized by simple unifacial or bifacial flaking to create a sharp edge.

   • Produced expedient tools for tasks like butchery or breaking bones.

2. Acheulian bifaces—symmetrical hand-axes ($\text{20 cm}$ edge):

   • Associated with Homo erectus and Homo heidelbergensis.

   • More sophisticated, teardrop-shaped tools, often extensively flaked on both sides to achieve symmetry and a longer cutting edge.

   • Remarkable for their consistency across vast geographical areas and long periods.

3. Levallois prepared-core ($\sim$\text{100 cm}$edge):</p><ul><li><p>A technique to produce predetermined flake shapes from a specially prepared core.</p></li><li><p>Associated with Middle Paleolithic hominins like Neanderthals.</p></li><li><p>Achieved greater efficiency and control over flake morphology, maximizing cutting edge per unit of raw material.</p></li></ul></li><li><p>Upper Paleolithic blade-punch technique ($\sim$$\text{300 – 1,200 cm}$edge):</p><ul><li><p>Employed by anatomically modern humans.</p></li><li><p>Involves indirect percussion (using a punch and hammerstone) to detach long, parallel-sided blades from a prepared core.</p></li><li><p>Represents a significant increase in efficiency, producing a much greater length of cutting edge from the same amount of raw material.</p></li></ul></li><li><p>Mesolithic microliths: Maximal edge economy:</p><ul><li><p>Small, geometrically shaped stone inserts (e.g., triangles, segments) mounted into composite tools (e.g., arrows, sickles).</p></li><li><p>This technology allowed for the repair and reuse of tools by replacing broken microliths rather than discarding the entire tool.</p></li></ul></li></ol><h6 id="fc4de39e-4045-4905-8589-54a3a02372fc" data-toc-id="fc4de39e-4045-4905-8589-54a3a02372fc" collapsed="false" seolevelmigrated="true">Analytical Techniques</h6><ul><li><p>Replication: Experiential understanding of ancient knapping techniques.</p><ul><li><p>Bordes: Pioneering French archaeologist, known for his work in flint tool typology and replication.</p></li><li><p>Crabtree (Folsom flute via chest-crutch press): Don Crabtree experimentally replicated the Folsom point's distinctive basal flute using a chest-crutch press, demonstrating a plausible method thought to be extremely difficult.</p></li><li><p>Heat-treatment experiments (Florida cherts turn pink$\ge$$\text{240}^{\circ}! ext{C}$): Experiments have shown that controlled heating of certain cherts improves their flaking quality, and can also leave diagnostic color changes, such as Florida cherts turning pink above$\text{240}^{\circ}! ext{C}$.</p></li></ul></li><li><p>Refitting: The process of re-assembling débitage (waste flakes) from an archaeological site to reconstruct original cores and demonstrate knapping sequences.</p><ul><li><p>Etiolles core$N103$=$\text{124}$pieces: A famous example where$\text{124}$individual flakes were refitted back to a single core, revealing precise knapping locations and understanding ancient workspace and movement patterns.</p></li></ul></li><li><p>Microwear: Microscopic analysis of wear patterns and polishes on stone tool edges to determine their function.</p><ul><li><p>Semenov and Keeley blind tests: Sergei Semenov pioneered microwear analysis. Lawrence Keeley's blind tests confirmed the reliability of the method, where analysts correctly identified tool functions without prior knowledge.</p></li><li><p>Distinguishes polish on wood, hide, bone, meat, plant: Different contact materials leave distinct microscopic polishes. SEM (Scanning Electron Microscopy) and striation orientation (Okazaki) further refine these analyses, indicating direction of use.</p></li></ul></li><li><p>Microdebitage: The analysis of extremely small flakes ($< ext{1 mm}$), often referred to as “sawdust,” generated during flint knapping.</p><ul><li><p>Maps precise knapping spots: The distribution of microdebitage can pinpoint exact locations where tool production occurred within a site.</p></li></ul></li></ul><h6 id="59f10cf1-1500-4405-be27-4f2cf35837a1" data-toc-id="59f10cf1-1500-4405-be27-4f2cf35837a1" collapsed="false" seolevelmigrated="true">Site Case Studies</h6><ul><li><p>Pedra Furada (Brazil): A site with$\text{54}$radiocarbon dates ranging from$\text{50,000}$to$\text{5,000 BP}$(Before Present). Parenti criteria (less than$\text{3}$natural flakes per pebble) were applied to distinguish$\text{900}$clear Pleistocene tools from natural rockfall, supporting early human presence in the Americas.</p></li><li><p>Rekem (Belgium): An archaeological site with approximately$\text{25,000}$flints. Refitting and microwear analysis were used to reconstruct specialized hide-working zones and projectile maintenance areas, indicating high spatial integrity of the site despite some vertical disturbance.</p></li><li><p>Boxgrove experiment: An experimental archaeology project where$\text{9} replica Acheulian hand-axes were used to efficiently butcher an entire deer carcass, demonstrating their effectiveness as cutting tools.

Megalithic Extraction, Transport & Fitting

• Neolithic flint mines (Spiennes, Grimes Graves, Rijckholt): Evidence of large-scale, systematic mining of flint, with thousands (\sim$\text{5,000}$) of shafts and extensive production of polished flint axes (e.g., $\text{153 M}$ axes from Rijckholt).

• Easter Island: The presence of unfinished moai (giant statues) in quarries indicates the process of carving. Studies suggest $\text{6}$ carvers could finish a $\text{5 m}$ statue in $\sim$\text{1}$year, giving insight into labor and time required.</p></li><li><p>Aswan obelisk: An unfinished$\text{42 m}$,$\text{1,168 t}$(ton) granite obelisk provides direct evidence of ancient quarrying techniques. Dolerite hammering tools were used at a rate of$\text{5 mm/hr}$, suggesting$\text{400}$workers would take$\text{15}$months to quarry it.</p></li><li><p>Transport hypotheses:</p><ul><li><p>Inca ramps (Protzen): John Protzen's experimental work suggests that the Inca used earthen ramps and levers to move massive stones for their constructions.</p></li><li><p>Egyptian sled depiction (Djehutihotep): A wall painting from the tomb of Djehutihotep shows a large statue being pulled on a sled by$\text{90} pullers, illustrating a plausible transport method.

• Pavel’s trilithon & pukao lever experiment: Thor Heyerdahl's colleague Pavel, with \text{10}$people, successfully re-erected a trilithon (three-stone monument) and moved a pukao (topknot for moai) using levers, demonstrating practical methods for monument construction.</p></li></ul></li><li><p>Inca polygonal masonry: Characterized by precisely cut and fitted stones without mortar.</p><ul><li><p>Bounce-hammer dressing: Stone surfaces were shaped using percussion with a hard hammerstone, leaving distinctive scars.</p></li><li><p>Fitting in$\text{< 2 h}: Experiments show that individual stones could be fitted into place in less than two hours once prepared, indicating efficient construction.

• Hammer scars & handling lugs preserved: The tools used (hammerstones) left diagnostic scars, and some blocks retain handling lugs (protrusions) which were later removed, revealing steps in the building process.

---

Other Unaltered Materials

Bone, Antler, Shell

• Earliest bone tools contentious: While some early bone fragments show use-wear, definitive evidence for deliberate bone tool manufacturing in the very early Paleolithic is debated, e.g., Swartkrans bone diggers showing wear patterns consistent with termite foraging by early hominins, rather than tool creation.

• Glory’s wear analysis \Rightarrow$Paleolithic antler batons rubbed by thongs: Denis Glory's research revealed that wear patterns on Paleolithic antler batons were consistent with them being used as soft hammers in flint knapping, or potentially for shaft-straightening by being rubbed against thongs.</p></li><li><p>Campana proof of shaft-straightening: Douglas Campana's microwear studies further supported the function of antler tools for straightening wooden shafts.</p></li><li><p>Kasteelberg (South Africa,$\approx$$\text{950 CE}$$): Provides a full chaîne opératoire of bone point manufacturing from eland metapodials, illustrating the complete sequence of steps from raw material to finished product.

• SEM varnish replicas distinguish sawing vs. gouging vs. grinding perforations (Francis; d’Errico criteria): Scanning Electron Microscopy applied to varnish replicas of objects allows for the detailed study of perforations, distinguishing the marks left by different tool actions (sawing, gouging, grinding), based on criteria established by researchers like Julie Francis and Francesco d’Errico.

Woodworking

• Beaver-cut vs. stone-cut facets (Coles): John Coles' work demonstrated how to distinguish between wood cut by beaver teeth (distinctive gnaw marks) and wood cut by stone tools (angled, cleaner facets), important for analyzing ancient structures like trackways.

• Somerset Levels tracks: Neolithic stone-ax “dished” vs. Bronze stepped facets: Analysis of wooden trackways in the Somerset Levels showed that Neolithic axes (stone) left a concave,