{
  "version": "44.2.0",
  "generated": "2026-09-23",
  "methodNote": "Only explicit published percentage values are encoded. Qualitative descriptions are never back-converted into numbers; differing denominators remain visible.",
  "series": [
    {
      "id": "qasile-area-c-decorated-philistine",
      "title": "Tell Qasile Area C — decorated Philistine pottery",
      "siteLabel": "Tell Qasile",
      "region": "Southern coastal plain",
      "period": "Iron I",
      "mode": "stratigraphic-sequence",
      "chartType": "line",
      "metricLabel": "Share of total ceramic assemblage",
      "unit": "percent",
      "denominator": "total ceramic assemblage in Area C by stratum",
      "countingProtocol": "Published mean frequency of decorated Philistine pottery per stratum.",
      "categories": [
        {
          "id": "decorated-philistine",
          "label": "Decorated Philistine pottery"
        }
      ],
      "points": [
        {
          "label": "Stratum XII",
          "order": 1,
          "values": {
            "decorated-philistine": 24.0
          }
        },
        {
          "label": "Stratum XI",
          "order": 2,
          "values": {
            "decorated-philistine": 14.3
          }
        },
        {
          "label": "Stratum X",
          "order": 3,
          "values": {
            "decorated-philistine": 14.6
          }
        }
      ],
      "interpretation": "The measured share falls sharply from XII to XI and is nearly stable from XI to X. This is a local Area C sequence, not a universal Philistine ceramic curve.",
      "comparisonBoundary": "Most Area C pottery derives from temples and functionally related buildings, which may overrepresent decorated vessels. Do not compare these percentages mechanically with domestic assemblages elsewhere.",
      "sourceIds": [
        "qasile-mazar-1985",
        "qasile-gilboa-2006"
      ]
    },
    {
      "id": "ashdod-hk-local-philistine",
      "title": "Ashdod Areas H/K — local tradition vs Philistine style",
      "siteLabel": "Ashdod",
      "region": "Southern coastal plain",
      "period": "Iron I",
      "mode": "stratigraphic-sequence",
      "chartType": "line",
      "metricLabel": "Published pottery share",
      "unit": "percent",
      "denominator": "rim-counted pottery from controlled loci in Areas H/K",
      "countingProtocol": "Published rim-frequency categories; reported percentages are retained exactly and are not rescaled to 100%.",
      "categories": [
        {
          "id": "local-tradition",
          "label": "Local Canaanite tradition"
        },
        {
          "id": "philistine-style",
          "label": "Philistine style"
        }
      ],
      "points": [
        {
          "label": "Stratum XIII",
          "order": 1,
          "values": {
            "local-tradition": 73.0,
            "philistine-style": 24.0
          }
        },
        {
          "label": "Stratum XII",
          "order": 2,
          "values": {
            "local-tradition": 52.0,
            "philistine-style": 47.0
          }
        },
        {
          "label": "Stratum XI",
          "order": 3,
          "values": {
            "local-tradition": 41.0,
            "philistine-style": 58.0
          }
        }
      ],
      "interpretation": "Across these published assemblages, the Philistine-style component increases while the local-tradition component decreases. The curves describe ceramic representation, not a direct ethnic census.",
      "comparisonBoundary": "The paired percentages do not always total exactly 100 because the published categories and rounding are preserved. Stratum X is described qualitatively as an almost complete disappearance of Philistine pottery and is intentionally not converted to a numeric zero.",
      "sourceIds": [
        "ashdod-vi-2005",
        "faust-2012-philistia"
      ]
    },
    {
      "id": "gezer-stratum-xiii-philistine-anchor",
      "title": "Gezer Stratum XIII / Tandy Stratum 11 — Philistine 2 anchor",
      "siteLabel": "Gezer",
      "region": "Shephelah / Philistia border",
      "period": "Iron I",
      "mode": "quantified-anchor",
      "chartType": "point",
      "metricLabel": "Share of relevant pottery assemblage",
      "unit": "percent",
      "denominator": "relevant pottery assemblage in Fields VI and the Tandy excavation",
      "countingProtocol": "Published assemblage share for characteristic Philistine pottery at first appearance.",
      "categories": [
        {
          "id": "philistine-2",
          "label": "Philistine 2 / Bichrome"
        }
      ],
      "points": [
        {
          "label": "Stratum XIII / 11",
          "order": 1,
          "values": {
            "philistine-2": 5.0
          }
        }
      ],
      "interpretation": "This is a quantified first-appearance anchor rather than a frequency curve: characteristic Philistine pottery constitutes 5% of the relevant assemblage at this horizon.",
      "comparisonBoundary": "A single quantified horizon cannot define a rise/fall curve. It is retained as an anchor and should not be extrapolated to adjacent Gezer strata.",
      "sourceIds": [
        "gezer-2023"
      ]
    },
    {
      "id": "iron-i-aegean-style-regional-comparator",
      "title": "Iron I Aegean-style pottery — published regional comparator",
      "siteLabel": "Regional comparison",
      "region": "Philistia and adjacent Shephelah",
      "period": "Iron I",
      "mode": "regional-cross-section",
      "chartType": "bars",
      "metricLabel": "Published assemblage share",
      "unit": "percent",
      "denominator": "site-specific published pottery assemblages; denominator protocols vary by excavation",
      "countingProtocol": "Published comparative percentages reproduced from the scholarly synthesis; values are shown side-by-side, not normalized or averaged.",
      "categories": [
        {
          "id": "aegean-style",
          "label": "Aegean-style pottery"
        }
      ],
      "points": [
        {
          "label": "Tell Qasile",
          "order": 1,
          "values": {
            "aegean-style": 24.0
          }
        },
        {
          "label": "Ashdod",
          "order": 2,
          "values": {
            "aegean-style": 47.0
          }
        },
        {
          "label": "Ekron",
          "order": 3,
          "values": {
            "aegean-style": 41.0
          }
        },
        {
          "label": "Timnah",
          "order": 4,
          "values": {
            "aegean-style": 34.0
          }
        },
        {
          "label": "Beth-Shemesh",
          "order": 5,
          "values": {
            "aegean-style": 5.3
          }
        },
        {
          "label": "Gezer",
          "order": 6,
          "values": {
            "aegean-style": 5.0
          }
        }
      ],
      "interpretation": "The comparator visualizes a strong core/periphery contrast in the published sample without turning that contrast into an ethnic or demographic percentage.",
      "comparisonBoundary": "This is not a chronological series: site horizons and counting protocols are not perfectly synchronized or identical. Ashkelon is omitted because the value in the comparative figure was based on personal communication rather than a published assemblage at the time.",
      "sourceIds": [
        "faust-katz-2011-trough",
        "qasile-mazar-1985",
        "ashdod-vi-2005",
        "gezer-2023"
      ]
    }
  ]
}