{ "version": "50.1.0", "generated": "2026-09-23", "title": "Use-Wear & Functional Archaeology", "methodNote": "Function is reconstructed as an explicit evidence chain rather than inferred from artifact names. Every profile now separates morphological expectation, microscopic/macroscopic wear, residue evidence, experimental calibration, archaeological context and the bounded functional interpretation. Missing stages remain visible instead of being silently treated as positive evidence.", "methodRules": [ { "title": "Tool shape ≠ demonstrated function", "text": "Typology proposes likely uses; microscopic wear, residues, breakage pattern, context and experiment must test them. A ‘sickle blade’ or ‘scraper’ label is not itself functional proof." }, { "title": "Gloss ≠ one activity", "text": "Silica-rich plant contact can create visible gloss in multiple cereal-working tasks. Harvesting and threshing-sledge wear require finer trace distribution and motion criteria." }, { "title": "Use-wear ≠ residue", "text": "Polish, striations, rounding, pits and edge removals are wear traces. Starch, phytoliths, proteins, fats or other residues are independent evidence streams and can be contaminated." }, { "title": "Experimental match ≠ historical identity", "text": "Replication can show that a process is capable of producing a trace. It does not prove a unique cause unless alternatives have been tested and excluded." }, { "title": "Hafting ≠ prehension", "text": "Localized polish, abrasion or scarring from a handle must be separated from wear created by hand-held use, wrapping, worked material and post-depositional damage." }, { "title": "Sequence matters", "text": "Retouch that cuts through an older polish can indicate maintenance after use; later wear over retouch can reverse the sequence. Functional history is often multi-stage." }, { "title": "Function ≠ ethnicity", "text": "A shared harvesting technique can cross political and ethnic boundaries. Tool-use standardization should not be converted into an ethnic marker without independent evidence." }, { "title": "Secondary use ≠ original use", "text": "Recycling, rehafting and architectural reuse can preserve several life-history stages on one object. The last use is not automatically the first use." }, { "title": "No diagnostic wear ≠ never used", "text": "Short use, soft contact materials, surface weathering, cleaning, burning or preservation can erase or fail to generate diagnostic traces." }, { "title": "Context controls interpretation", "text": "A function reconstructed from microwear still needs stratigraphy, chronology and depositional context. Tomb deposition, household discard and workshop loss imply different histories." }, { "title": "Missing proxy ≠ negative result", "text": "If residue analysis or a direct replication experiment is not encoded for a profile, the stage is marked not encoded. That is different from a tested negative result and must not be counted against or in favor of a function." }, { "title": "Confidence follows convergence, not a point score", "text": "Identification security is ordinal and evidence-based. Direct trace pattern, experimental calibration, contextual control and tested alternatives can converge, but the workbench does not manufacture a numeric probability from qualitatively different evidence streams." } ], "sources": [ { "id": "yamada-2017", "title": "Right or Left? Front or Back? Use-Wear Analysis of Flint Sickles in the Biblical Period of the Levant", "authors": "Shoh Yamada", "year": 2017, "kind": "peer-reviewed article", "url": "https://doi.org/10.30827/cpag.v27i0.8180", "note": "Microscopic study of Tel Dan sickles; documents consistent tool motion/hafting orientation and maintenance patterns across the Middle Bronze II–Iron Age large-geometric sickle tradition." }, { "id": "dan-iv-2020", "title": "Use-Wear Analysis of Sickle Blades, in DAN IV: The Iron Age I Settlement", "authors": "Shoh Yamada; edited by David Ilan", "year": 2020, "kind": "final excavation report chapter", "url": "https://doi.org/10.2307/j.ctvw04drv.16", "note": "Final-report treatment of 38 Tel Dan sickle blades, placing microscopic use-wear within the site’s Iron Age I economy and craft practices." }, { "id": "anderson-chabot-vangijn-2004", "title": "The Functional Riddle of ‘Glossy’ Canaanean Blades and the Near Eastern Threshing Sledge", "authors": "Patricia C. Anderson, Jacques Chabot, Annelou van Gijn", "year": 2004, "kind": "peer-reviewed experimental/use-wear study", "url": "https://doi.org/10.1558/jmea.17.1.87.56076", "note": "Experimental and archaeological study distinguishing cereal-harvesting wear from threshing-sledge wear on Canaanean blades; includes southern-Levantine Megiddo material." }, { "id": "chabot-yerkes-2025", "title": "Early Bronze Age Stone Tools and Agricultural Innovations: Comparing Canaanean Blades from Tell ʿAtij and Ein Zippori", "authors": "Jacques Chabot and Richard W. Yerkes", "year": 2025, "kind": "peer-reviewed microwear study", "url": "https://doi.org/10.1558/jma.33428", "note": "Compares harvesting and threshing-sledge microwear on Early Bronze Age Canaanean blades and evaluates recycling between tool functions." }, { "id": "yaroshevich-2026", "title": "Tel Iẓṭabba: The Flint Assemblage", "authors": "Alla Yaroshevich", "year": 2026, "kind": "excavation report article", "url": "https://doi.org/10.70967/3078-8528.1084", "note": "Intermediate Bronze/Early Bronze IV assemblage showing varied gloss distribution, backing, truncation and probable reaping-knife hafting solutions." }, { "id": "yerkes-et-al-2016", "title": "The use of fan scrapers: Microwear evidence from Late Pottery Neolithic and Early Bronze Age, Ein Zippori, Israel", "authors": "Richard W. Yerkes, Ran Barkai, Avi Gopher, Katia Zutovski", "year": 2016, "kind": "peer-reviewed microwear study", "url": "https://doi.org/10.2218/jls.v3i1.1447", "note": "Microwear indicates most sampled fan scrapers were used for skinning and butchery, with some hide processing and bone working." }, { "id": "beller-et-al-2016", "title": "The life-history of basalt ground stone tools from early urban domestic contexts: Tell es-Safi/Gath", "authors": "Jeremy A. Beller, Haskel J. Greenfield, Itzhaq Shai, Aren M. Maeir", "year": 2016, "kind": "peer-reviewed ground-stone study", "url": "https://doi.org/10.2218/jls.v3i3.1675", "note": "Tracks production, transport, domestic use, wear, discard and recycling of Early Bronze III basalt ground-stone tools at Tell es-Safi/Gath." }, { "id": "beller-et-al-2026", "title": "A Longue Durée Perspective of Household Sustainability in the Early Bronze Age Southern Levant: Groundstone Recycling at Tell eṣ-Ṣâfi/Gath", "authors": "Jeremy A. Beller, Haskel J. Greenfield, Sarah J. Richardson, Shira Albaz, Aren M. Maeir", "year": 2026, "kind": "peer-reviewed open-access article", "url": "https://doi.org/10.1080/00934690.2026.2696687", "note": "Cross-phase study of secondary use and recycling of groundstone in floors, installations and walls, including different treatment of local and non-local stone." }, { "id": "greenfield-et-al-2018", "title": "Unravelling the Meaning of Faunal Assemblages in an Early Urban Domestic Neighbourhood: Bone Tool and Use Wear Frequencies from Early Bronze Age III Tell es-Safi", "authors": "Haskel J. Greenfield, Annie Brown, Itzhaq Shai, Aren M. Maeir", "year": 2018, "kind": "peer-reviewed archaeozoological chapter", "url": "https://cris.biu.ac.il/en/publications/unravelling-the-meaning-of-faunal-assemblages-in-an-early-urban-d/", "note": "Functional observations on bone tools and use-wear frequencies from the Early Bronze III domestic neighborhood at Tell es-Safi/Gath." }, { "id": "groman-yaroslavski-et-al-2026", "title": "Natufian sickle blades reveal cereal cultivation ca. 4.5 millennia before domestication", "authors": "Iris Groman-Yaroslavski et al.", "year": 2026, "kind": "peer-reviewed use-wear + experiment study", "url": "https://doi.org/10.1038/s41598-026-54740-5", "note": "High-magnification use-wear on el-Wad Terrace and Salibiya I sickles identifies prolonged harvest of semi-ripe/ripe cereals, stripping/threshing traces and maintenance." }, { "id": "groman-yaroslavski-et-al-2016", "title": "Composite Sickles and Cereal Harvesting Methods at 23,000-Years-Old Ohalo II, Israel", "authors": "Iris Groman-Yaroslavski et al.", "year": 2016, "kind": "peer-reviewed use-wear + experiment study", "url": "https://doi.org/10.1371/journal.pone.0167151", "note": "Use-wear and hafting traces on Ohalo II blades support composite cereal-harvesting tools and semi-ripe cereal cutting." }, { "id": "dubreuil-nadel-2015", "title": "The development of plant food processing in the Levant: insights from use-wear analysis of Early Epipalaeolithic ground stone tools", "authors": "Laure Dubreuil and Dani Nadel", "year": 2015, "kind": "peer-reviewed functional analysis", "url": "https://doi.org/10.1098/rstb.2014.0357", "note": "Use-wear study of Ohalo II ground stone indicates flour production was present but sporadic rather than routine." }, { "id": "dubreuil-2004", "title": "Long-term trends in Natufian subsistence: a use-wear analysis of ground stone tools", "authors": "Laure Dubreuil", "year": 2004, "kind": "peer-reviewed use-wear study", "url": "https://doi.org/10.1016/j.jas.2004.04.003", "note": "Use-wear on 166 Natufian basalt tools shows varied functions including cereal/legume processing, hide working and mineral grinding." }, { "id": "dubreuil-et-al-2023", "title": "Pounding, grinding, transitioning. A use-wear perspective", "authors": "Laure Dubreuil, Brian Hayden, Maria Bofill, Jerome Robitaille", "year": 2023, "kind": "peer-reviewed synthesis + experiments", "url": "https://doi.org/10.1016/j.jasrep.2022.103743", "note": "State-of-research synthesis stressing both the value and sampling biases of Levantine ground-stone use-wear studies." }, { "id": "yerkes-et-al-2003", "title": "Microwear analysis of early Neolithic (PPNA) axes and bifacial tools from Netiv Hagdud", "authors": "Richard W. Yerkes, Ran Barkai, Avi Gopher, Ofer Bar-Yosef", "year": 2003, "kind": "peer-reviewed microwear study", "url": "https://doi.org/10.1016/S0305-4403(03)00007-4", "note": "Microwear on 76 bifacial artifacts shows most used flaked tools and axe spalls were employed in woodworking, while some typological axes lacked use traces." }, { "id": "yerkes-galili-barkai-2012", "title": "Activities at the final Pre-Pottery Neolithic fishing village revealed through microwear analysis at Atlit-Yam", "authors": "Richard W. Yerkes, Ehud Galili, Ran Barkai", "year": 2012, "kind": "peer-reviewed microwear study", "url": "https://cris.haifa.ac.il/en/publications/activities-at-final-pre-pottery-neolithic-ppnc-fishing-village-re/", "note": "Microwear distinguishes tree-felling axes from chisels/adzes likely used in woodworking and watercraft construction at Atlit-Yam." }, { "id": "meeks-et-al-1982", "title": "Gloss and use-wear traces on flint sickles and similar phenomena", "authors": "N. D. Meeks, G. de G. Sieveking, M. S. Tite, J. Cook", "year": 1982, "kind": "peer-reviewed microscopy/experiment study", "url": "https://doi.org/10.1016/0305-4403(82)90038-3", "note": "SEM and experimental work characterizes sickle gloss as frictional surface alteration rather than an added surface coating." } ], "profiles": [ { "id": "tel-dan-sickle-uniformity", "title": "Tel Dan Iron I sickles: standardized use and hafting", "dateRange": "ca. 12th–11th centuries BCE", "period": "Iron I", "region": "Upper Galilee / Tel Dan", "focus": "harvesting technology", "objectType": "38 large geometric sickle blades", "material": "flint", "context": "Iron Age I settlement at Tel Dan", "method": "high-power use-wear microscopy", "trace": "The sampled blades show a high degree of uniformity in polish features and motion indicators, implying consistent arrangement in composite sickles.", "interpretation": "Documents everyday cereal-harvesting technology at a major biblical-period site and suggests a standardized technical tradition among working populations.", "boundary": "Standardization in tool use is not evidence that the users shared one political or ethnic identity.", "sourceIds": [ "yamada-2017", "dan-iv-2020" ], "biblicalRefs": [ "Judges 18", "Ruth 2:3–9" ], "siteIds": [ "tel-dan" ], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "No direct experiment encoded for this profile", "experimentalReferenceIds": [], "security": { "level": "Trace-supported identification", "basis": "The functional inference rests primarily on direct wear/trace pattern plus archaeological or comparative context; no profile-specific direct replication is encoded.", "missing": "A dedicated replication/reference series or independent residue proxy would provide an additional line of control." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: 38 large geometric sickle blades. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "The sampled blades show a high degree of uniformity in polish features and motion indicators, implying consistent arrangement in composite sickles.", "caveat": "Analytical method: high-power use-wear microscopy." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "No direct experiment encoded for this profile", "kind": "experiment", "evidence": "No profile-specific experimental reference programme is linked in the controlled corpus.", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Controlled archaeological context", "kind": "context", "evidence": "Context: Iron Age I settlement at Tel Dan. Interpretation: Documents everyday cereal-harvesting technology at a major biblical-period site and suggests a standardized technical tradition among working populations.", "caveat": "Standardization in tool use is not evidence that the users shared one political or ethnic identity." } ] }, { "id": "tel-dan-motion-orientation", "title": "Tel Dan sickles: direction of motion reconstructed", "dateRange": "ca. 12th–11th centuries BCE", "period": "Iron I", "region": "Upper Galilee / Tel Dan", "focus": "motion reconstruction", "objectType": "sickle inserts", "material": "flint", "context": "Tel Dan Iron I", "method": "microscopic orientation of comet-shaped pits and polish", "trace": "On 36 blades the directional traces are consistently oriented, allowing reconstruction of how inserts sat in the haft and moved through plants.", "interpretation": "Shows that microwear can recover embodied technique—tool orientation and movement—not merely a generic “used/unused” label.", "boundary": "Handedness remains a conditional inference because handle form and user posture are not preserved.", "sourceIds": [ "yamada-2017" ], "biblicalRefs": [ "Deuteronomy 16:9", "Ruth 2:9" ], "siteIds": [ "tel-dan" ], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "No direct experiment encoded for this profile", "experimentalReferenceIds": [], "security": { "level": "Trace-supported identification", "basis": "The functional inference rests primarily on direct wear/trace pattern plus archaeological or comparative context; no profile-specific direct replication is encoded.", "missing": "A dedicated replication/reference series or independent residue proxy would provide an additional line of control." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: sickle inserts. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "On 36 blades the directional traces are consistently oriented, allowing reconstruction of how inserts sat in the haft and moved through plants.", "caveat": "Analytical method: microscopic orientation of comet-shaped pits and polish." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "No direct experiment encoded for this profile", "kind": "experiment", "evidence": "No profile-specific experimental reference programme is linked in the controlled corpus.", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Controlled archaeological context", "kind": "context", "evidence": "Context: Tel Dan Iron I. Interpretation: Shows that microwear can recover embodied technique—tool orientation and movement—not merely a generic “used/unused” label.", "caveat": "Handedness remains a conditional inference because handle form and user posture are not preserved." } ] }, { "id": "tel-dan-resharpening", "title": "Tel Dan sickles: maintenance after use", "dateRange": "ca. 12th–11th centuries BCE", "period": "Iron I", "region": "Upper Galilee / Tel Dan", "focus": "maintenance sequence", "objectType": "large geometric sickle blades", "material": "flint", "context": "Tel Dan sickle assemblage", "method": "microwear superposition / retouch sequence", "trace": "On a significant number of blades, truncation retouch cuts across existing polish; other traces indicate skilled edge maintenance.", "interpretation": "Supports repeated maintenance and possibly specialized adjustment of harvesting tools rather than one-use discard.", "boundary": "Microscopic sequencing supports maintenance, but does not by itself identify a formal craft guild or workshop organization.", "sourceIds": [ "yamada-2017", "dan-iv-2020" ], "biblicalRefs": [ "Isaiah 2:4", "Joel 3:13" ], "siteIds": [ "tel-dan" ], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "No direct experiment encoded for this profile", "experimentalReferenceIds": [], "security": { "level": "Trace-supported identification", "basis": "The functional inference rests primarily on direct wear/trace pattern plus archaeological or comparative context; no profile-specific direct replication is encoded.", "missing": "A dedicated replication/reference series or independent residue proxy would provide an additional line of control." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: large geometric sickle blades. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "On a significant number of blades, truncation retouch cuts across existing polish; other traces indicate skilled edge maintenance.", "caveat": "Analytical method: microwear superposition / retouch sequence." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "No direct experiment encoded for this profile", "kind": "experiment", "evidence": "No profile-specific experimental reference programme is linked in the controlled corpus.", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Controlled archaeological context", "kind": "context", "evidence": "Context: Tel Dan sickle assemblage. Interpretation: Supports repeated maintenance and possibly specialized adjustment of harvesting tools rather than one-use discard.", "caveat": "Microscopic sequencing supports maintenance, but does not by itself identify a formal craft guild or workshop organization." } ] }, { "id": "tel-dan-not-tribulum", "title": "Tel Dan sickles are not recycled threshing-sledge teeth", "dateRange": "ca. 12th–11th centuries BCE", "period": "Iron I", "region": "Upper Galilee / Tel Dan", "focus": "functional discrimination", "objectType": "large geometric sickle blades", "material": "flint", "context": "Tel Dan Iron I", "method": "comparative microwear + directional trace analysis", "trace": "The consistent blade positioning and motion pattern differs from the abrasive wear expected from threshing-sledge inserts.", "interpretation": "Rejects an alternative interpretation that would otherwise collapse harvesting and threshing into the same tool category.", "boundary": "This conclusion applies to the studied Tel Dan assemblage; other glossy blades elsewhere can and do show threshing-sledge wear.", "sourceIds": [ "yamada-2017" ], "biblicalRefs": [ "Isaiah 28:27–28", "Ruth 3:2" ], "siteIds": [ "tel-dan" ], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "Comparative trace calibration; no direct replication encoded here", "experimentalReferenceIds": [], "security": { "level": "Trace-supported identification", "basis": "The functional inference rests primarily on direct wear/trace pattern plus archaeological or comparative context; no profile-specific direct replication is encoded.", "missing": "A dedicated replication/reference series or independent residue proxy would provide an additional line of control." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: large geometric sickle blades. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "The consistent blade positioning and motion pattern differs from the abrasive wear expected from threshing-sledge inserts.", "caveat": "Analytical method: comparative microwear + directional trace analysis." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "Comparative trace calibration; no direct replication encoded here", "kind": "experiment", "evidence": "No profile-specific experimental reference programme is linked in the controlled corpus.", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Controlled archaeological context", "kind": "context", "evidence": "Context: Tel Dan Iron I. Interpretation: Rejects an alternative interpretation that would otherwise collapse harvesting and threshing into the same tool category.", "caveat": "This conclusion applies to the studied Tel Dan assemblage; other glossy blades elsewhere can and do show threshing-sledge wear." } ] }, { "id": "large-geometric-sickle-tradition", "title": "Large geometric sickles: a cross-polity technical tradition", "dateRange": "ca. 1900–850 BCE", "period": "Middle Bronze II–Iron II transition", "region": "Levant", "focus": "technical tradition", "objectType": "large geometric sickle inserts", "material": "flint", "context": "comparative Levantine assemblages", "method": "cross-site microwear comparison", "trace": "Tel Dan’s standardized use pattern fits a broader Middle Bronze II–Iron Age large-geometric sickle tradition.", "interpretation": "Suggests continuity in agricultural technique across changing kingdoms and political boundaries.", "boundary": "A technical tradition is not an ethnic fingerprint and cannot independently map biblical tribal boundaries.", "sourceIds": [ "yamada-2017" ], "biblicalRefs": [ "Genesis 26:12", "1 Samuel 8:12" ], "siteIds": [ "tel-dan" ], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "Comparative trace calibration; no direct replication encoded here", "experimentalReferenceIds": [], "security": { "level": "Trace-supported identification", "basis": "The functional inference rests primarily on direct wear/trace pattern plus archaeological or comparative context; no profile-specific direct replication is encoded.", "missing": "A dedicated replication/reference series or independent residue proxy would provide an additional line of control." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: large geometric sickle inserts. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "Tel Dan’s standardized use pattern fits a broader Middle Bronze II–Iron Age large-geometric sickle tradition.", "caveat": "Analytical method: cross-site microwear comparison." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "Comparative trace calibration; no direct replication encoded here", "kind": "experiment", "evidence": "No profile-specific experimental reference programme is linked in the controlled corpus.", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Controlled archaeological context", "kind": "context", "evidence": "Context: comparative Levantine assemblages. Interpretation: Suggests continuity in agricultural technique across changing kingdoms and political boundaries.", "caveat": "A technical tradition is not an ethnic fingerprint and cannot independently map biblical tribal boundaries." } ] }, { "id": "megiddo-tribulum-blades", "title": "Megiddo glossy blades: threshing-sledge use", "dateRange": "Middle/Late Bronze Age with some later material", "period": "Middle–Late Bronze / Iron residual", "region": "Jezreel Valley / Megiddo", "focus": "threshing technology", "objectType": "glossy Canaanean-type blade segments", "material": "flint", "context": "tomb deposits at Megiddo", "method": "high-power microwear compared with experimental/ethnographic tribulum inserts", "trace": "Most sampled glossy wide blades from the Megiddo tomb material showed abrasive grooves, striae and removals characteristic of threshing-sledge use rather than sickle harvesting.", "interpretation": "Provides a direct southern-Levantine case where “glossy blade” does not mean sickle, and connects agricultural processing with deliberate tomb deposition.", "boundary": "The assemblage is deposited in tombs and includes intrusive/residual chronological complexity; use function and depositional meaning must be kept separate.", "sourceIds": [ "anderson-chabot-vangijn-2004" ], "biblicalRefs": [ "Isaiah 28:27–28", "2 Samuel 24:18–24" ], "siteIds": [ "megiddo" ], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "Direct experimental calibration", "experimentalReferenceIds": [ "tribulum-replication" ], "security": { "level": "Convergent identification", "basis": "Direct trace evidence is reinforced by experimental/reference calibration and archaeological context. Independent residue evidence is not required for the inference and is shown separately as absent when not encoded.", "missing": "Residue or additional blind/reference testing would add an independent proxy, but the current identification does not depend on one." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: glossy Canaanean-type blade segments. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "Most sampled glossy wide blades from the Megiddo tomb material showed abrasive grooves, striae and removals characteristic of threshing-sledge use rather than sickle harvesting.", "caveat": "Analytical method: high-power microwear compared with experimental/ethnographic tribulum inserts." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "Direct experimental calibration", "kind": "experiment", "evidence": "Linked experimental programme(s): tribulum-replication", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Controlled but complex archaeological context", "kind": "context", "evidence": "Context: tomb deposits at Megiddo. Interpretation: Provides a direct southern-Levantine case where “glossy blade” does not mean sickle, and connects agricultural processing with deliberate tomb deposition.", "caveat": "The assemblage is deposited in tombs and includes intrusive/residual chronological complexity; use function and depositional meaning must be kept separate." } ] }, { "id": "megiddo-sickle-vs-sledge", "title": "Megiddo: sickle and threshing inserts separated by microwear", "dateRange": "Bronze–Iron Age comparative material", "period": "Bronze / Iron comparative", "region": "Jezreel Valley / Megiddo", "focus": "functional discrimination", "objectType": "wide Canaanean blades vs narrower blades", "material": "flint", "context": "Megiddo sampled lithics", "method": "high-power microwear", "trace": "Wide Canaanean-type blades showed threshing-sledge traces, while smaller/narrower blades in the comparative material showed harvesting traces.", "interpretation": "Demonstrates that similar raw material and visible gloss can encode different stages of cereal processing.", "boundary": "Functional separation depends on microscopic trace pattern, not simple size or typological label alone.", "sourceIds": [ "anderson-chabot-vangijn-2004" ], "biblicalRefs": [ "Ruth 2:17", "Isaiah 28:27–28" ], "siteIds": [ "megiddo" ], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "Direct experimental calibration", "experimentalReferenceIds": [ "tribulum-replication" ], "security": { "level": "Convergent identification", "basis": "Direct trace evidence is reinforced by experimental/reference calibration and archaeological context. Independent residue evidence is not required for the inference and is shown separately as absent when not encoded.", "missing": "Residue or additional blind/reference testing would add an independent proxy, but the current identification does not depend on one." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: wide Canaanean blades vs narrower blades. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "Wide Canaanean-type blades showed threshing-sledge traces, while smaller/narrower blades in the comparative material showed harvesting traces.", "caveat": "Analytical method: high-power microwear." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "Direct experimental calibration", "kind": "experiment", "evidence": "Linked experimental programme(s): tribulum-replication", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Controlled archaeological context", "kind": "context", "evidence": "Context: Megiddo sampled lithics. Interpretation: Demonstrates that similar raw material and visible gloss can encode different stages of cereal processing.", "caveat": "Functional separation depends on microscopic trace pattern, not simple size or typological label alone." } ] }, { "id": "canaanean-tribulum-experiment", "title": "Canaanean blades and the Bronze Age threshing sledge", "dateRange": "4th–3rd millennia BCE, continuing regionally", "period": "Early Bronze comparative", "region": "Fertile Crescent / southern Levant comparanda", "focus": "experimental replication", "objectType": "Canaanean blade inserts", "material": "flint + wooden/bitumen hafting system", "context": "archaeological, ethnographic and experimental datasets", "method": "microwear + replicated threshing sledges", "trace": "Experimental sledges armed with replica blades generate broad abrasion, deep linear traces and comet-shaped removals matching archaeological Canaanean blades much better than harvesting experiments.", "interpretation": "Shows how experiment can overturn a long-standing typological assumption and reconstruct an agricultural machine.", "boundary": "The experiment establishes a strong functional analogue; it does not mean every Canaanean blade from every context served in a tribulum.", "sourceIds": [ "anderson-chabot-vangijn-2004" ], "biblicalRefs": [ "Isaiah 28:27–28", "Amos 1:3" ], "siteIds": [], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "Direct experimental calibration", "experimentalReferenceIds": [ "tribulum-replication" ], "security": { "level": "Methodological / experimental control", "basis": "This record calibrates how functional inference works rather than identifying one archaeological object assemblage.", "missing": "Do not treat a methodological control as a site-specific functional identification." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: Canaanean blade inserts. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "Experimental sledges armed with replica blades generate broad abrasion, deep linear traces and comet-shaped removals matching archaeological Canaanean blades much better than harvesting experiments.", "caveat": "Analytical method: microwear + replicated threshing sledges." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "Direct experimental calibration", "kind": "experiment", "evidence": "Linked experimental programme(s): tribulum-replication", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Comparative/reference context", "kind": "context", "evidence": "Context: archaeological, ethnographic and experimental datasets. Interpretation: Shows how experiment can overturn a long-standing typological assumption and reconstruct an agricultural machine.", "caveat": "The experiment establishes a strong functional analogue; it does not mean every Canaanean blade from every context served in a tribulum." } ] }, { "id": "ein-zippori-canaanean-functions", "title": "Ein Zippori Early Bronze Canaanean blades: harvest vs threshing", "dateRange": "Early Bronze Age", "period": "Early Bronze", "region": "Lower Galilee", "focus": "functional discrimination", "objectType": "Canaanean blade segments", "material": "flint", "context": "Ein Zippori EBA assemblage", "method": "high-power microwear + controlled experiments", "trace": "Recent comparison tests whether wide and narrow blade segments served different agricultural tasks and whether sickle inserts were later recycled into threshing sledges.", "interpretation": "Updates the older “one blade type, one function” model and places recycling within Early Bronze agricultural intensification.", "boundary": "Functional assignments remain specimen-level; a manufacturing tradition can supply blades for more than one task.", "sourceIds": [ "chabot-yerkes-2025" ], "biblicalRefs": [ "Genesis 41:49", "Ruth 2:17" ], "siteIds": [], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "Experimental reference collection", "experimentalReferenceIds": [ "ein-zippori-canaanean-calibration" ], "security": { "level": "Convergent identification", "basis": "Direct trace evidence is reinforced by experimental/reference calibration and archaeological context. Independent residue evidence is not required for the inference and is shown separately as absent when not encoded.", "missing": "Residue or additional blind/reference testing would add an independent proxy, but the current identification does not depend on one." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: Canaanean blade segments. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "Recent comparison tests whether wide and narrow blade segments served different agricultural tasks and whether sickle inserts were later recycled into threshing sledges.", "caveat": "Analytical method: high-power microwear + controlled experiments." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "Experimental reference collection", "kind": "experiment", "evidence": "Linked experimental programme(s): ein-zippori-canaanean-calibration", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Archaeological context without project site cross-link", "kind": "context", "evidence": "Context: Ein Zippori EBA assemblage. Interpretation: Updates the older “one blade type, one function” model and places recycling within Early Bronze agricultural intensification.", "caveat": "Functional assignments remain specimen-level; a manufacturing tradition can supply blades for more than one task." } ] }, { "id": "tel-iztabba-reaping-knives", "title": "Tel Iẓṭabba: varied harvesting implements and hafting solutions", "dateRange": "Intermediate Bronze / Early Bronze IV", "period": "Intermediate Bronze", "region": "Bet She’an Valley", "focus": "harvesting technology", "objectType": "Canaanean blades and modified harvesting inserts", "material": "flint", "context": "single-period Tel Iẓṭabba assemblage", "method": "technological analysis + gloss distribution + edge modification", "trace": "Variability in backing, truncation, edge modification and gloss supports several harvesting implements, including probable reaping knives.", "interpretation": "Shows that the end of Early Bronze urban systems did not erase specialized blade production or flexible harvesting technology.", "boundary": "Probable reaping-knife reconstruction is based on a bundle of technological traits, not a preserved complete handle.", "sourceIds": [ "yaroshevich-2026" ], "biblicalRefs": [ "Genesis 8:22" ], "siteIds": [], "artifactIds": [], "strength": "probable", "crossLinks": [], "experimentalSupport": "No direct experiment encoded for this profile", "experimentalReferenceIds": [], "security": { "level": "Probable identification", "basis": "Functional evidence is meaningful but one or more controls are limited, indirect or contextually incomplete.", "missing": "Additional direct trace calibration, experimental replication, residue evidence or tighter depositional control could strengthen the identification." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: Canaanean blades and modified harvesting inserts. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Trace-distribution analysis", "kind": "wear", "evidence": "Variability in backing, truncation, edge modification and gloss supports several harvesting implements, including probable reaping knives.", "caveat": "Analytical method: technological analysis + gloss distribution + edge modification." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "No direct experiment encoded for this profile", "kind": "experiment", "evidence": "No profile-specific experimental reference programme is linked in the controlled corpus.", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Archaeological context without project site cross-link", "kind": "context", "evidence": "Context: single-period Tel Iẓṭabba assemblage. Interpretation: Shows that the end of Early Bronze urban systems did not erase specialized blade production or flexible harvesting technology.", "caveat": "Probable reaping-knife reconstruction is based on a bundle of technological traits, not a preserved complete handle." } ] }, { "id": "ein-zippori-fan-scrapers", "title": "Ein Zippori fan scrapers: butchery, skinning and hide work", "dateRange": "Late Pottery Neolithic–Early Bronze Age", "period": "Early Bronze / comparative", "region": "Lower Galilee", "focus": "animal processing", "objectType": "fan scrapers", "material": "flint", "context": "Ein Zippori occupation layers", "method": "microwear analysis of working edges", "trace": "Most sampled fan scrapers show skinning and butchery traces; a smaller number indicate hide processing and bone working, with edge angle related to task.", "interpretation": "Replaces a broad typological “scraper” label with a more differentiated animal-processing toolkit.", "boundary": "The result is an assemblage pattern; individual fan scrapers without diagnostic wear should not automatically receive the majority function.", "sourceIds": [ "yerkes-et-al-2016" ], "biblicalRefs": [ "Genesis 27:3–4", "Leviticus 1:6" ], "siteIds": [], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "No direct experiment encoded for this profile", "experimentalReferenceIds": [], "security": { "level": "Trace-supported identification", "basis": "The functional inference rests primarily on direct wear/trace pattern plus archaeological or comparative context; no profile-specific direct replication is encoded.", "missing": "A dedicated replication/reference series or independent residue proxy would provide an additional line of control." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: fan scrapers. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "Most sampled fan scrapers show skinning and butchery traces; a smaller number indicate hide processing and bone working, with edge angle related to task.", "caveat": "Analytical method: microwear analysis of working edges." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "No direct experiment encoded for this profile", "kind": "experiment", "evidence": "No profile-specific experimental reference programme is linked in the controlled corpus.", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Archaeological context without project site cross-link", "kind": "context", "evidence": "Context: Ein Zippori occupation layers. Interpretation: Replaces a broad typological “scraper” label with a more differentiated animal-processing toolkit.", "caveat": "The result is an assemblage pattern; individual fan scrapers without diagnostic wear should not automatically receive the majority function." } ] }, { "id": "gath-groundstone-life-history", "title": "Tell es-Safi/Gath: life-history of domestic basalt tools", "dateRange": "ca. 2900–2500 BCE", "period": "Early Bronze III", "region": "Shephelah / Tell es-Safi-Gath", "focus": "object life history", "objectType": "handstones, grinding stones and other ground-stone tools", "material": "basalt", "context": "commoner domestic neighborhood", "method": "typology + macroscopic cultural polish + excavation context", "trace": "Differential cultural polish and condition help trace domestic use, breakage, discard and recycling of imported basalt tools.", "interpretation": "Makes ordinary household labor and resource management visible at a site better known for later biblical-period history.", "boundary": "Macroscopic polish can support intensity/location of use but is less task-specific than high-power microwear; function requires tool form and context too.", "sourceIds": [ "beller-et-al-2016" ], "biblicalRefs": [ "Judges 16:21", "1 Samuel 17:4" ], "siteIds": [], "artifactIds": [], "strength": "probable", "crossLinks": [], "experimentalSupport": "No direct experiment encoded for this profile", "experimentalReferenceIds": [], "security": { "level": "Probable identification", "basis": "Functional evidence is meaningful but one or more controls are limited, indirect or contextually incomplete.", "missing": "Additional direct trace calibration, experimental replication, residue evidence or tighter depositional control could strengthen the identification." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: handstones, grinding stones and other ground-stone tools. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Macroscopic wear / life-history analysis", "kind": "wear", "evidence": "Differential cultural polish and condition help trace domestic use, breakage, discard and recycling of imported basalt tools.", "caveat": "Analytical method: typology + macroscopic cultural polish + excavation context." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "No direct experiment encoded for this profile", "kind": "experiment", "evidence": "No profile-specific experimental reference programme is linked in the controlled corpus.", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Archaeological context without project site cross-link", "kind": "context", "evidence": "Context: commoner domestic neighborhood. Interpretation: Makes ordinary household labor and resource management visible at a site better known for later biblical-period history.", "caveat": "Macroscopic polish can support intensity/location of use but is less task-specific than high-power microwear; function requires tool form and context too." } ] }, { "id": "gath-groundstone-recycling", "title": "Tell es-Safi/Gath: groundstone recycling into architecture", "dateRange": "Early Bronze II–III", "period": "Early Bronze", "region": "Shephelah / Tell es-Safi-Gath", "focus": "secondary use / recycling", "objectType": "groundstone assemblage", "material": "basalt and local/non-local stones", "context": "multi-phase domestic neighborhood", "method": "cross-phase condition, lithology and architectural-context analysis", "trace": "Many groundstone objects were reused in floors, installations and walls; local and non-local lithologies were treated differently.", "interpretation": "Demonstrates that “discarded” tools can continue as construction resources and that object life-history extends beyond primary function.", "boundary": "Architectural reuse records a secondary life stage; it cannot erase or by itself identify the tool’s earlier food-processing or craft function.", "sourceIds": [ "beller-et-al-2026" ], "biblicalRefs": [ "Ecclesiastes 3:5" ], "siteIds": [], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "No direct experiment encoded for this profile", "experimentalReferenceIds": [], "security": { "level": "Trace-supported identification", "basis": "The functional inference rests primarily on direct wear/trace pattern plus archaeological or comparative context; no profile-specific direct replication is encoded.", "missing": "A dedicated replication/reference series or independent residue proxy would provide an additional line of control." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: groundstone assemblage. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Condition + contextual life-history analysis", "kind": "wear", "evidence": "Many groundstone objects were reused in floors, installations and walls; local and non-local lithologies were treated differently.", "caveat": "Analytical method: cross-phase condition, lithology and architectural-context analysis." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "No direct experiment encoded for this profile", "kind": "experiment", "evidence": "No profile-specific experimental reference programme is linked in the controlled corpus.", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Archaeological context without project site cross-link", "kind": "context", "evidence": "Context: multi-phase domestic neighborhood. Interpretation: Demonstrates that “discarded” tools can continue as construction resources and that object life-history extends beyond primary function.", "caveat": "Architectural reuse records a secondary life stage; it cannot erase or by itself identify the tool’s earlier food-processing or craft function." } ] }, { "id": "gath-bone-tools", "title": "Tell es-Safi/Gath: bone tools and use-wear in an early urban household", "dateRange": "Early Bronze III", "period": "Early Bronze III", "region": "Shephelah / Tell es-Safi-Gath", "focus": "bone-tool function", "objectType": "worked animal bone tools", "material": "bone", "context": "domestic neighborhood", "method": "archaeozoological identification + use-wear frequency analysis", "trace": "Bone-tool wear frequencies contribute to reconstructing craft and household activity within the faunal assemblage rather than treating all bone as food refuse.", "interpretation": "Integrates artifact function with zooarchaeology and household archaeology.", "boundary": "Bone modification can be culinary, taphonomic or technological; functional interpretation requires manufacturing and wear criteria.", "sourceIds": [ "greenfield-et-al-2018" ], "biblicalRefs": [ "Exodus 12:46" ], "siteIds": [], "artifactIds": [], "strength": "probable", "crossLinks": [], "experimentalSupport": "No direct experiment encoded for this profile", "experimentalReferenceIds": [], "security": { "level": "Probable identification", "basis": "Functional evidence is meaningful but one or more controls are limited, indirect or contextually incomplete.", "missing": "Additional direct trace calibration, experimental replication, residue evidence or tighter depositional control could strengthen the identification." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: worked animal bone tools. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "Bone-tool wear frequencies contribute to reconstructing craft and household activity within the faunal assemblage rather than treating all bone as food refuse.", "caveat": "Analytical method: archaeozoological identification + use-wear frequency analysis." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "No direct experiment encoded for this profile", "kind": "experiment", "evidence": "No profile-specific experimental reference programme is linked in the controlled corpus.", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Archaeological context without project site cross-link", "kind": "context", "evidence": "Context: domestic neighborhood. Interpretation: Integrates artifact function with zooarchaeology and household archaeology.", "caveat": "Bone modification can be culinary, taphonomic or technological; functional interpretation requires manufacturing and wear criteria." } ] }, { "id": "sickle-gloss-friction", "title": "What “sickle gloss” physically is", "dateRange": "comparative experimental framework", "period": "Method", "region": "Cross-period", "focus": "trace formation", "objectType": "glossed flint edge", "material": "flint", "context": "laboratory and archaeological comparison", "method": "SEM + optical microscopy + replication", "trace": "Classic microscopy shows the glossy surface is produced by frictional alteration of the flint surface rather than an added deposited coating.", "interpretation": "Provides the physical basis for treating gloss as a wear phenomenon whose texture, topography and distribution can be compared experimentally.", "boundary": "Gloss indicates contact and motion but specific crop/task identification still depends on the detailed trace pattern and reference collection.", "sourceIds": [ "meeks-et-al-1982" ], "biblicalRefs": [], "siteIds": [], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "Direct experimental calibration", "experimentalReferenceIds": [ "sickle-gloss-formation" ], "security": { "level": "Methodological / experimental control", "basis": "This record calibrates how functional inference works rather than identifying one archaeological object assemblage.", "missing": "Do not treat a methodological control as a site-specific functional identification." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: glossed flint edge. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "Classic microscopy shows the glossy surface is produced by frictional alteration of the flint surface rather than an added deposited coating.", "caveat": "Analytical method: SEM + optical microscopy + replication." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "Direct experimental calibration", "kind": "experiment", "evidence": "Linked experimental programme(s): sickle-gloss-formation", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Archaeological context without project site cross-link", "kind": "context", "evidence": "Context: laboratory and archaeological comparison. Interpretation: Provides the physical basis for treating gloss as a wear phenomenon whose texture, topography and distribution can be compared experimentally.", "caveat": "Gloss indicates contact and motion but specific crop/task identification still depends on the detailed trace pattern and reference collection." } ] }, { "id": "hafting-vs-prehension", "title": "Hafting traces vs hand-held/prehen­sion wear", "dateRange": "cross-period method", "period": "Method", "region": "Levant", "focus": "hafting reconstruction", "objectType": "composite stone tools", "material": "flint / organic hafts inferred", "context": "experimental reference collections and archaeological tools", "method": "high-power microwear + trace location", "trace": "Localized bright spots, rounded/abraded edges, scarring and polish can mark contact with a haft; broader handling zones can reflect direct or wrapped grip.", "interpretation": "Allows reconstruction of composite tools even when wood, bone, resin or bindings have decayed.", "boundary": "Hafting material and orientation are probabilistic unless residue, preserved handle or a highly diagnostic experimental match survives.", "sourceIds": [ "groman-yaroslavski-et-al-2016", "yamada-2017" ], "biblicalRefs": [], "siteIds": [], "artifactIds": [], "strength": "probable", "crossLinks": [], "experimentalSupport": "Direct experimental calibration", "experimentalReferenceIds": [ "ohalo-harvest-calibration" ], "security": { "level": "Methodological / experimental control", "basis": "This record calibrates how functional inference works rather than identifying one archaeological object assemblage.", "missing": "Do not treat a methodological control as a site-specific functional identification." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: composite stone tools. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "Localized bright spots, rounded/abraded edges, scarring and polish can mark contact with a haft; broader handling zones can reflect direct or wrapped grip.", "caveat": "Analytical method: high-power microwear + trace location." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "Direct experimental calibration", "kind": "experiment", "evidence": "Linked experimental programme(s): ohalo-harvest-calibration", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Comparative/reference context", "kind": "context", "evidence": "Context: experimental reference collections and archaeological tools. Interpretation: Allows reconstruction of composite tools even when wood, bone, resin or bindings have decayed.", "caveat": "Hafting material and orientation are probabilistic unless residue, preserved handle or a highly diagnostic experimental match survives." } ] }, { "id": "natufian-protracted-harvest", "title": "Natufian sickles: protracted cereal harvest and stripping", "dateRange": "ca. 15,000–11,700 cal BP", "period": "Late Epipalaeolithic / comparative background", "region": "Southern Levant", "focus": "harvest strategy", "objectType": "sickle blades from el-Wad Terrace and Salibiya I", "material": "flint", "context": "Natufian settlement contexts", "method": "100–200× use-wear microscopy + experimental harvesting", "trace": "Semi-ripe and ripe cereal wear, long-duration polish, stripping traces and edge maintenance support prolonged, organized cereal harvesting and spikelet removal.", "interpretation": "A 2026 study argues for an early cultivation strategy well before full domestication, useful as deep background for the agricultural world presupposed by later biblical texts.", "boundary": "The inference concerns Natufian cereal management, not Genesis chronology and not a direct biblical event.", "sourceIds": [ "groman-yaroslavski-et-al-2026" ], "biblicalRefs": [ "Genesis 8:22" ], "siteIds": [], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "Direct experimental calibration", "experimentalReferenceIds": [ "natufian-harvest-calibration" ], "security": { "level": "Convergent identification", "basis": "Direct trace evidence is reinforced by experimental/reference calibration and archaeological context. Independent residue evidence is not required for the inference and is shown separately as absent when not encoded.", "missing": "Residue or additional blind/reference testing would add an independent proxy, but the current identification does not depend on one." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: sickle blades from el-Wad Terrace and Salibiya I. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "Semi-ripe and ripe cereal wear, long-duration polish, stripping traces and edge maintenance support prolonged, organized cereal harvesting and spikelet removal.", "caveat": "Analytical method: 100–200× use-wear microscopy + experimental harvesting." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "Direct experimental calibration", "kind": "experiment", "evidence": "Linked experimental programme(s): natufian-harvest-calibration", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Archaeological context without project site cross-link", "kind": "context", "evidence": "Context: Natufian settlement contexts. Interpretation: A 2026 study argues for an early cultivation strategy well before full domestication, useful as deep background for the agricultural world presupposed by later biblical texts.", "caveat": "The inference concerns Natufian cereal management, not Genesis chronology and not a direct biblical event." } ] }, { "id": "ohalo-composite-sickles", "title": "Ohalo II: composite sickles before agriculture", "dateRange": "ca. 23,000 BP", "period": "Early Epipalaeolithic / comparative background", "region": "Sea of Galilee", "focus": "harvesting technology", "objectType": "five glossed blades", "material": "flint", "context": "brush-hut floors at Ohalo II", "method": "high-power use-wear + experimental cereal harvesting", "trace": "Polish consistent with cutting semi-ripe cereal stems combines with hafting indications to support composite harvesting tools.", "interpretation": "Provides a deep-time comparative baseline showing how use-wear can identify cereal harvesting independently of later farming economies.", "boundary": "This is comparative prehistory, not evidence for a biblical-period harvest or for domesticated agriculture.", "sourceIds": [ "groman-yaroslavski-et-al-2016" ], "biblicalRefs": [], "siteIds": [], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "Direct experimental calibration", "experimentalReferenceIds": [ "ohalo-harvest-calibration" ], "security": { "level": "Convergent identification", "basis": "Direct trace evidence is reinforced by experimental/reference calibration and archaeological context. Independent residue evidence is not required for the inference and is shown separately as absent when not encoded.", "missing": "Residue or additional blind/reference testing would add an independent proxy, but the current identification does not depend on one." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: five glossed blades. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "Polish consistent with cutting semi-ripe cereal stems combines with hafting indications to support composite harvesting tools.", "caveat": "Analytical method: high-power use-wear + experimental cereal harvesting." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "Direct experimental calibration", "kind": "experiment", "evidence": "Linked experimental programme(s): ohalo-harvest-calibration", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Archaeological context without project site cross-link", "kind": "context", "evidence": "Context: brush-hut floors at Ohalo II. Interpretation: Provides a deep-time comparative baseline showing how use-wear can identify cereal harvesting independently of later farming economies.", "caveat": "This is comparative prehistory, not evidence for a biblical-period harvest or for domesticated agriculture." } ] }, { "id": "ohalo-groundstone-flour", "title": "Ohalo II: flour production was present but sporadic", "dateRange": "ca. 23,000 BP", "period": "Early Epipalaeolithic / comparative background", "region": "Sea of Galilee", "focus": "plant processing", "objectType": "percussive / grinding stones", "material": "basalt and limestone", "context": "Ohalo II", "method": "ground-stone use-wear analysis", "trace": "Wear on 18 tools supports plant processing but indicates flour production was not a routine dominant activity.", "interpretation": "Demonstrates why a grinding slab plus starch does not automatically equal intensive cereal milling.", "boundary": "Use-wear reconstructs observed tool function within the sampled assemblage; it does not quantify total diet by itself.", "sourceIds": [ "dubreuil-nadel-2015" ], "biblicalRefs": [], "siteIds": [], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "No direct experiment encoded for this profile", "experimentalReferenceIds": [], "security": { "level": "Trace-supported identification", "basis": "The functional inference rests primarily on direct wear/trace pattern plus archaeological or comparative context; no profile-specific direct replication is encoded.", "missing": "A dedicated replication/reference series or independent residue proxy would provide an additional line of control." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: percussive / grinding stones. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "Wear on 18 tools supports plant processing but indicates flour production was not a routine dominant activity.", "caveat": "Analytical method: ground-stone use-wear analysis." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "No direct experiment encoded for this profile", "kind": "experiment", "evidence": "No profile-specific experimental reference programme is linked in the controlled corpus.", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Archaeological context without project site cross-link", "kind": "context", "evidence": "Context: Ohalo II. Interpretation: Demonstrates why a grinding slab plus starch does not automatically equal intensive cereal milling.", "caveat": "Use-wear reconstructs observed tool function within the sampled assemblage; it does not quantify total diet by itself." } ] }, { "id": "natufian-groundstone-multifunction", "title": "Natufian grinding stones were multifunctional", "dateRange": "ca. 12,500–10,200 BP", "period": "Natufian / comparative background", "region": "Galilee", "focus": "ground-stone function", "objectType": "166 basalt grinding/pounding tools", "material": "basalt", "context": "Ain Mallaha, Hayonim Cave and Terrace", "method": "experimental reference collection + microscopic use-wear", "trace": "Wear signatures indicate cereal and legume processing, hide working and mineral grinding rather than one universal “grain mill” function.", "interpretation": "Provides a strong control against inferring subsistence directly from ground-stone morphology.", "boundary": "Functional proportions reflect the sampled tools and preservation; not every unstudied grinding stone should be assigned the same range.", "sourceIds": [ "dubreuil-2004", "dubreuil-et-al-2023" ], "biblicalRefs": [], "siteIds": [], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "Experimental reference collection", "experimentalReferenceIds": [ "natufian-groundstone-reference" ], "security": { "level": "Convergent identification", "basis": "Direct trace evidence is reinforced by experimental/reference calibration and archaeological context. Independent residue evidence is not required for the inference and is shown separately as absent when not encoded.", "missing": "Residue or additional blind/reference testing would add an independent proxy, but the current identification does not depend on one." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: 166 basalt grinding/pounding tools. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "Wear signatures indicate cereal and legume processing, hide working and mineral grinding rather than one universal “grain mill” function.", "caveat": "Analytical method: experimental reference collection + microscopic use-wear." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "Experimental reference collection", "kind": "experiment", "evidence": "Linked experimental programme(s): natufian-groundstone-reference", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Archaeological context without project site cross-link", "kind": "context", "evidence": "Context: Ain Mallaha, Hayonim Cave and Terrace. Interpretation: Provides a strong control against inferring subsistence directly from ground-stone morphology.", "caveat": "Functional proportions reflect the sampled tools and preservation; not every unstudied grinding stone should be assigned the same range." } ] }, { "id": "netiv-hagdud-axes", "title": "Netiv Hagdud: axes and bifaces used mainly for woodworking", "dateRange": "ca. 9900–9600 BP", "period": "PPNA / comparative background", "region": "Jordan Valley", "focus": "woodworking", "objectType": "76 bifacial artifacts / axe spalls", "material": "flint and coarse stone", "context": "Netiv Hagdud", "method": "microwear analysis", "trace": "Most utilized bifacial tools and axe spalls in the sample show woodworking traces, while some polished stone celts lacked evidence of use.", "interpretation": "Shows the difference between typological “axe” and demonstrated woodworking function and helps reconstruct early carpentry.", "boundary": "An unused specimen may be unfinished, curated, symbolic, lightly used or simply lack preserved diagnostic traces.", "sourceIds": [ "yerkes-et-al-2003" ], "biblicalRefs": [], "siteIds": [], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "No direct experiment encoded for this profile", "experimentalReferenceIds": [], "security": { "level": "Trace-supported identification", "basis": "The functional inference rests primarily on direct wear/trace pattern plus archaeological or comparative context; no profile-specific direct replication is encoded.", "missing": "A dedicated replication/reference series or independent residue proxy would provide an additional line of control." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: 76 bifacial artifacts / axe spalls. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "Most utilized bifacial tools and axe spalls in the sample show woodworking traces, while some polished stone celts lacked evidence of use.", "caveat": "Analytical method: microwear analysis." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "No direct experiment encoded for this profile", "kind": "experiment", "evidence": "No profile-specific experimental reference programme is linked in the controlled corpus.", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Archaeological context without project site cross-link", "kind": "context", "evidence": "Context: Netiv Hagdud. Interpretation: Shows the difference between typological “axe” and demonstrated woodworking function and helps reconstruct early carpentry.", "caveat": "An unused specimen may be unfinished, curated, symbolic, lightly used or simply lack preserved diagnostic traces." } ] }, { "id": "atlit-yam-axes-adzes", "title": "Atlit-Yam: tree felling separated from woodworking", "dateRange": "ca. 9000–6500 cal BP regional model", "period": "PPNC / comparative background", "region": "Mediterranean coast", "focus": "woodworking / construction", "objectType": "axes, chisels and adzes", "material": "stone", "context": "submerged Atlit-Yam village", "method": "microwear on sampled bifaces", "trace": "The studied axes are interpreted as tree-felling tools, whereas chisels/adzes were more likely involved in woodworking such as watercraft construction.", "interpretation": "Illustrates functional differentiation inside a tool category that morphology alone can blur.", "boundary": "The watercraft inference is contextual and functional, not direct survival of a complete boat-building sequence.", "sourceIds": [ "yerkes-galili-barkai-2012" ], "biblicalRefs": [], "siteIds": [], "artifactIds": [], "strength": "probable", "crossLinks": [], "experimentalSupport": "No direct experiment encoded for this profile", "experimentalReferenceIds": [], "security": { "level": "Probable identification", "basis": "Functional evidence is meaningful but one or more controls are limited, indirect or contextually incomplete.", "missing": "Additional direct trace calibration, experimental replication, residue evidence or tighter depositional control could strengthen the identification." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: axes, chisels and adzes. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Direct microscopic trace analysis", "kind": "wear", "evidence": "The studied axes are interpreted as tree-felling tools, whereas chisels/adzes were more likely involved in woodworking such as watercraft construction.", "caveat": "Analytical method: microwear on sampled bifaces." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "No direct experiment encoded for this profile", "kind": "experiment", "evidence": "No profile-specific experimental reference programme is linked in the controlled corpus.", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Archaeological context without project site cross-link", "kind": "context", "evidence": "Context: submerged Atlit-Yam village. Interpretation: Illustrates functional differentiation inside a tool category that morphology alone can blur.", "caveat": "The watercraft inference is contextual and functional, not direct survival of a complete boat-building sequence." } ] }, { "id": "functional-triangulation", "title": "Functional archaeology: strongest when traces converge", "dateRange": "cross-period method", "period": "Method", "region": "Cross-period", "focus": "method synthesis", "objectType": "wear + residue + breakage + context + experiment", "material": "multiple", "context": "project-wide interpretive control", "method": "multi-proxy functional inference", "trace": "A robust function is strongest when microscopic wear, residues, edge damage, hafting, experimental reference traces, spatial context and tool design point in the same direction.", "interpretation": "Defines how this workbench should grade claims and prevents any single spectacular microtrace from carrying an entire historical argument.", "boundary": "Convergence raises confidence but still does not automatically identify a named person, biblical event or unique historical episode.", "sourceIds": [ "dubreuil-et-al-2023", "anderson-chabot-vangijn-2004" ], "biblicalRefs": [], "siteIds": [], "artifactIds": [], "strength": "strong", "crossLinks": [], "experimentalSupport": "Experimental reference collection", "experimentalReferenceIds": [ "groundstone-pounding-grinding" ], "security": { "level": "Methodological / experimental control", "basis": "This record calibrates how functional inference works rather than identifying one archaeological object assemblage.", "missing": "Do not treat a methodological control as a site-specific functional identification." }, "evidenceChain": [ { "stage": "1. Morphological expectation", "status": "Candidate function only", "kind": "morphology", "evidence": "Form/type: wear + residue + breakage + context + experiment. Morphology defines the candidate tool class but is not counted as demonstrated function.", "caveat": "Tool names and shapes are hypotheses to test, not functional results." }, { "stage": "2. Wear / trace evidence", "status": "Methodological synthesis", "kind": "wear", "evidence": "A robust function is strongest when microscopic wear, residues, edge damage, hafting, experimental reference traces, spatial context and tool design point in the same direction.", "caveat": "Analytical method: multi-proxy functional inference." }, { "stage": "3. Residue evidence", "status": "No residue proxy encoded", "kind": "residue", "evidence": "This record does not use an encoded starch, phytolith, protein, lipid or other residue result to identify function.", "caveat": "Not encoded is not the same as a tested negative. The functional inference must stand on the other documented evidence streams." }, { "stage": "4. Experimental calibration", "status": "Experimental reference collection", "kind": "experiment", "evidence": "Linked experimental programme(s): groundstone-pounding-grinding", "caveat": "Experimental similarity establishes a functional analogue; it does not identify a unique ancient event, person or population." }, { "stage": "5. Contextual interpretation", "status": "Archaeological context without project site cross-link", "kind": "context", "evidence": "Context: project-wide interpretive control. Interpretation: Defines how this workbench should grade claims and prevents any single spectacular microtrace from carrying an entire historical argument.", "caveat": "Convergence raises confidence but still does not automatically identify a named person, biblical event or unique historical episode." } ] } ], "functionalProfilesBySite": { "tel-dan": [ "tel-dan-sickle-uniformity", "tel-dan-motion-orientation", "tel-dan-resharpening", "tel-dan-not-tribulum", "large-geometric-sickle-tradition" ], "megiddo": [ "megiddo-tribulum-blades", "megiddo-sickle-vs-sledge" ] }, "counts": { "profiles": 23, "sources": 17, "siteLinks": 7, "siteDossiers": 2, "biblicalConnections": 15, "biblicalPeriodProfiles": 14, "evidenceChains": 23, "experimentalPrograms": 7, "experimentLinkedProfiles": 10, "residueEncodedProfiles": 0, "securityLevels": { "Trace-supported identification": 9, "Convergent identification": 6, "Methodological / experimental control": 4, "Probable identification": 4 }, "experimentalSupport": { "none": 11, "comparative": 2, "direct": 7, "reference": 3 } }, "experimentalReferences": [ { "id": "tribulum-replication", "title": "Threshing-sledge vs harvesting replication", "sourceIds": [ "anderson-chabot-vangijn-2004" ], "mode": "Direct replication + ethnographic calibration", "activity": "Cereal harvesting compared with threshing-sledge operation", "material": "Replica flint blade inserts in working cereal-processing tools", "variables": "Contact regime, direction of motion, abrasion, striation and edge-removal pattern", "diagnostic": "Replicated threshing produces broad abrasion, deep linear traces and characteristic removals that differ from harvesting wear.", "limits": "A close experimental match establishes a functional analogue; it does not imply that every glossy Canaanean blade was mounted in a tribulum.", "profileIds": [ "megiddo-tribulum-blades", "megiddo-sickle-vs-sledge", "canaanean-tribulum-experiment" ] }, { "id": "ein-zippori-canaanean-calibration", "title": "Canaanean-blade harvest / threshing calibration", "sourceIds": [ "chabot-yerkes-2025" ], "mode": "Controlled comparative experiments", "activity": "Harvesting, threshing and possible recycling between functions", "material": "Canaanean flint blades and experimental comparanda", "variables": "Blade width/form, wear distribution and functional sequence", "diagnostic": "The experiment tests whether distinct wear patterns separate harvesting inserts from threshing-sledge teeth and whether reuse can overprint earlier function.", "limits": "Functional sequence depends on trace preservation; recycling cannot be assumed where superposition is absent.", "profileIds": [ "ein-zippori-canaanean-functions" ] }, { "id": "natufian-harvest-calibration", "title": "Cereal maturity and harvest-duration experiments", "sourceIds": [ "groman-yaroslavski-et-al-2026" ], "mode": "Direct harvesting experiments", "activity": "Cutting semi-ripe/ripe cereals and stripping spikelets", "material": "Flint sickle blades used on cereal stands", "variables": "Plant maturity, duration of use, polish development, stripping traces and maintenance", "diagnostic": "Experimental reference traces allow archaeological sickles to be compared with maturity and duration signatures rather than merely labeled “cereal gloss.”", "limits": "Experimental fields simplify ancient crop mixtures, soils, moisture and user technique; matches are functional, not historical identities.", "profileIds": [ "natufian-protracted-harvest" ] }, { "id": "ohalo-harvest-calibration", "title": "Composite-sickle cereal harvesting experiment", "sourceIds": [ "groman-yaroslavski-et-al-2016" ], "mode": "Direct harvesting replication", "activity": "Composite sickle use on semi-ripe cereals", "material": "Flint inserts, reconstructed hafting and cereal stems", "variables": "Polish location, cutting motion and haft-contact traces", "diagnostic": "The reference set links cereal-cutting polish and hafting traces to a composite harvesting-tool configuration.", "limits": "The experiment constrains feasible tool action; exact handle form and individual gesture remain partly reconstructed.", "profileIds": [ "ohalo-composite-sickles", "hafting-vs-prehension" ] }, { "id": "natufian-groundstone-reference", "title": "Ground-stone contact-material reference collection", "sourceIds": [ "dubreuil-2004" ], "mode": "Experimental reference collection", "activity": "Grinding/processing cereals, legumes, hides and minerals", "material": "Basalt ground-stone surfaces compared with experimentally produced wear", "variables": "Surface leveling, polish, striation and contact-material signatures", "diagnostic": "Reference wear helps separate plant-food processing from hide working and mineral grinding on morphologically similar tools.", "limits": "Ground-stone surfaces may preserve multiple episodes; overprinting and cleaning can blur earlier activities.", "profileIds": [ "natufian-groundstone-multifunction" ] }, { "id": "groundstone-pounding-grinding", "title": "Pounding / grinding transition experiments", "sourceIds": [ "dubreuil-et-al-2023" ], "mode": "Experimental synthesis / reference calibration", "activity": "Pounding, grinding and intermediate motions", "material": "Ground-stone working surfaces", "variables": "Motion, contact material, surface development and sampling strategy", "diagnostic": "Experimental series clarify that wear forms continua rather than a simple pounding-versus-grinding binary.", "limits": "Published archaeological samples are uneven and method-dependent; absence of a wear class may reflect sampling rather than behavior.", "profileIds": [ "functional-triangulation" ] }, { "id": "sickle-gloss-formation", "title": "Sickle-gloss trace-formation replication", "sourceIds": [ "meeks-et-al-1982" ], "mode": "Microscopy + replication", "activity": "Repeated silica-rich plant contact with flint", "material": "Flint surfaces examined optically and by SEM", "variables": "Friction, surface alteration and polish development", "diagnostic": "Replication and microscopy support frictional alteration of the flint surface as the mechanism behind classic sickle gloss.", "limits": "Explaining how gloss forms does not by itself distinguish every cereal-working task; trace distribution and motion still matter.", "profileIds": [ "sickle-gloss-friction" ] } ] }