{
 "source": "Scored by Fable 5 against the manuscript compiled 2026-09-08. Persistence strength is a qualitative 1-10 reading of how loudly the mark still reads today; persistence years follow the manuscript's own figures.",
 "definition": "Legacy is the claw mark read at a distance.",
 "axes": {
  "x": "Years the mark has persisted since the sorting ran (log scale). Points flagged 'active' are sortings still running today.",
  "y": "Measurable persistence strength, qualitative 1-10: how clearly the mark still reads in genetics, records, or landscape."
 },
 "categories": {
  "genetic": {
   "label": "Genetic marker",
   "color": "#3987e5"
  },
  "institutional": {
   "label": "Institutional / records",
   "color": "#c98500"
  },
  "ecological": {
   "label": "Landscape / ecological",
   "color": "#199e70"
  }
 },
 "points": [
  {
   "id": "tay-sachs",
   "name": "Tay-Sachs / Ashkenazi",
   "category": "genetic",
   "persistenceYears": 2000,
   "stillActive": false,
   "strength": 9,
   "measure": "Tay-Sachs, Gaucher, familial dysautonomia and others at 10 to 100 times the general population",
   "note": "Two thousand years of enforced marriage boundaries, begun with a first-century rabbinic ordinance about schools and narrowed by a medieval bottleneck to a few hundred founders (Ch 5)."
  },
  {
   "id": "ming-surnames",
   "name": "Ming surname concentration",
   "category": "institutional",
   "persistenceYears": 500,
   "stillActive": false,
   "strength": 6.5,
   "measure": "Exam-district surnames still concentrated centuries after the keju",
   "note": "Surnames that passed the Ming examinations remain concentrated in the old examination districts centuries later (Ch 14). The persistence span plotted here is the site's estimate."
  },
  {
   "id": "chinese-schooling",
   "name": "Chinese schooling rates",
   "category": "institutional",
   "persistenceYears": 100,
   "stillActive": false,
   "strength": 7,
   "measure": "8.5% coefficient on ancestral schooling a century out",
   "note": "Grandparental and great-grandparental schooling still predicts educational attainment across a century that included revolution and purge."
  },
  {
   "id": "songbun",
   "name": "Songbun (North Korea)",
   "category": "institutional",
   "persistenceYears": 65,
   "stillActive": true,
   "strength": 10,
   "measure": "State-enforced hereditary caste, three classes, 51 subcategories",
   "note": "Formalized between 1957 and 1960 and still following grandchildren for a mark their grandparents never chose (Ch 14). The only sorting on this chart still administered by a living state."
  },
  {
   "id": "jati",
   "name": "Indian jati genetic markers",
   "category": "genetic",
   "persistenceYears": 2000,
   "stillActive": true,
   "strength": 9.5,
   "measure": "Founder-event signatures distinct per jati, still detectable",
   "note": "Two thousand years of endogamy wrote community boundaries into the genome; the endogamy largely continues."
  },
  {
   "id": "samaritans",
   "name": "Samaritan genetic disorders",
   "category": "genetic",
   "persistenceYears": 2500,
   "stillActive": true,
   "strength": 9,
   "measure": "Distinct disorder profile in a community of about 840 today, down to 146 in 1917",
   "note": "Twenty-five centuries of closed marriage in one of the smallest continuously sorted populations on earth."
  },
  {
   "id": "terraces",
   "name": "Mediterranean terrace vegetation",
   "category": "ecological",
   "persistenceYears": 2000,
   "stillActive": false,
   "strength": 5,
   "measure": "Terrace-line plant communities distinct from the slopes around them",
   "note": "The hands stopped two thousand years ago; the vegetation still grows in the rows they cut."
  },
  {
   "id": "charcoal",
   "name": "Australian charcoal record",
   "category": "ecological",
   "persistenceYears": 10000,
   "stillActive": false,
   "strength": 4,
   "measure": "Fire-regime signature in sediment cores across ten millennia",
   "note": "The oldest mark on the chart: fire-stick farming legible in soil cores ten thousand years deep."
  }
 ]
}