{
 "status": "SEED DATA: provisional",
 "source": "Seeded from the Epilogue of The Scribe’s Advantage (the Women’s Compounding Score, run backward from today) and Chapter 2 (wheat, rice, the plow and the gate). Period scores are the author’s framework applied by the companion-site build, not a published dataset. Anchors: NCES Digest (1982 enrollment crossover); World Bank Gender Data Portal (2023); WEF Global Gender Gap Index; Loudon 2000 (maternal mortality plateau and 1937 cliff); Deuchler 1992 (Joseon); Lapidus 1978 (USSR); Alesina, Giuliano & Nunn 2013 (plow); Bossen & Gates 2017 (foot-binding).",
 "scale": "0-3. How far women could enter the scribal channel: 0 = locked out by law, custom and the mortality tax; 1 = literate minority, no institutional access; 2 = institutional access opening, credentialing still gated; 3 = full channel, women at or above parity in the credentialing class.",
 "periods": [
  {
   "key": "pre1800",
   "label": "Pre-1800",
   "order": 1,
   "era": "Crop-determined access",
   "summary": "The plow, the inheritance code and a six percent lifetime mortality tax lock wheat cultures; collective rice labour keeps a narrow door open."
  },
  {
   "key": "p1800s",
   "label": "1800s",
   "order": 2,
   "era": "Institutional exclusion",
   "summary": "Exclusion formalised by statute. The Napoleonic Code of 1804; universities closed to women across Europe."
  },
  {
   "key": "p1900_1930",
   "label": "1900s-1930s",
   "order": 3,
   "era": "Suffrage",
   "summary": "Political voice without economic access. New Zealand 1893, Finland 1906, the United States 1920. The mortality tax holds until 1937."
  },
  {
   "key": "p1940_1960",
   "label": "1940s-1960s",
   "order": 4,
   "era": "Post-war expansion",
   "summary": "Sulfonamides and antibiotics break the mortality tax. Wartime workforce entry, then the seed planted in GI Bill households."
  },
  {
   "key": "p1980s",
   "label": "1980s",
   "order": 5,
   "era": "Education crossover",
   "summary": "Women surpass men in US bachelor’s degrees in 1982. South Korean female literacy 64 percent (1970) to 97 percent (1990)."
  },
  {
   "key": "p2020s",
   "label": "2020s",
   "order": 6,
   "era": "Workforce parity",
   "summary": "Women hold 47 percent of the global workforce and earn roughly 60 percent of US bachelor’s degrees. The compounding runs through both channels."
  }
 ],
 "civilizations": [
  {
   "name": "China",
   "crop": "rice and wheat (north wheat, south rice)",
   "nonMonotonic": true,
   "highlight": "Falls before it rises. Foot-binding (roughly 960-1911) tightened during the exam system’s strongest centuries, then the 1950s Marriage Law and mass literacy campaigns opened the channel in a single generation. The score dips in the 1800s below its pre-1800 level.",
   "scores": {
    "pre1800": {
     "score": 1,
     "note": "Elite women literate (Ban Zhao, Li Qingzhao) but the keju selected only men for 1,300 years; foot-binding spread through the same centuries the dragon was strongest."
    },
    "p1800s": {
     "score": 0.5,
     "note": "Late Qing: foot-binding near universal among Han elites, no institutional access, mortality tax intact."
    },
    "p1900_1930": {
     "score": 1,
     "note": "Exam system abolished 1905; first women’s colleges; May Fourth generation. Voice, not access."
    },
    "p1940_1960": {
     "score": 2,
     "note": "1950 Marriage Law; state literacy campaigns; women pushed into the workforce by decree. Compounding inside a state dragon (no exit)."
    },
    "p1980s": {
     "score": 2,
     "note": "Reform era. Rising enrollment; the one-child policy concentrated family investment on daughters in urban households."
    },
    "p2020s": {
     "score": 2.5,
     "note": "Women are the majority of undergraduate enrollment; female labour participation high but falling from its 1990 peak (World Bank)."
    }
   }
  },
  {
   "name": "Japan",
   "crop": "rice",
   "nonMonotonic": true,
   "highlight": "The clearest non-monotonic case. Heian women wrote the world’s first novel; terakoya schools taught girls for two centuries; Meiji opened mass female schooling in 1872, the inflection point the book marks (Figure 18), even as the 1898 Civil Code narrowed women’s legal standing. Post-war literacy was already near universal, but the credentialing class stayed male long after.",
   "scores": {
    "pre1800": {
     "score": 2,
     "note": "Murasaki Shikibu; eight reigning empresses; terakoya schooling for girls under the Tokugawa. Rice culture kept the door open (Chapter 2)."
    },
    "p1800s": {
     "score": 1.5,
     "note": "Mass female schooling arrives with Meiji in 1872, the book’s inflection point; the Civil Code (1898) then makes wives legal dependents, and higher education stays closed."
    },
    "p1900_1930": {
     "score": 1,
     "note": "Imperial universities barred women until 1913, and then admitted a handful. No suffrage until 1945."
    },
    "p1940_1960": {
     "score": 2,
     "note": "1947 Constitution; universal literacy already in place; the carrier pool was doubled before the recovery began."
    },
    "p1980s": {
     "score": 2,
     "note": "Equal Employment Opportunity Law (1986) but the credentialing class remains male; a plateau, not a rise."
    },
    "p2020s": {
     "score": 2,
     "note": "High female literacy and enrollment, but the lowest share of women in senior professional roles among rich economies (WEF)."
    }
   }
  },
  {
   "name": "Korea",
   "crop": "rice",
   "nonMonotonic": true,
   "highlight": "Early Joseon women could inherit and hold property. As the gwageo dragon matured, Neo-Confucian ideology stripped those rights (Deuchler 1992). The 1961 jolt reversed it: female literacy rose from 64 percent to 97 percent in twenty years.",
   "scores": {
    "pre1800": {
     "score": 0.5,
     "note": "Early Joseon inheritance rights stripped by the 17th century; Hangul literacy survived among women as a private script."
    },
    "p1800s": {
     "score": 0.5,
     "note": "Late Joseon: strict inside/outside separation; no institutional access."
    },
    "p1900_1930": {
     "score": 1,
     "note": "Mission schools and Ewha (1886) under colonial rule; a literate minority."
    },
    "p1940_1960": {
     "score": 1.5,
     "note": "Universal primary schooling after 1948; war and reconstruction."
    },
    "p1980s": {
     "score": 2,
     "note": "Female literacy 97 percent by 1990; tertiary enrollment climbing through the Park and post-Park era."
    },
    "p2020s": {
     "score": 2.5,
     "note": "Highest tertiary enrollment on earth, women above parity in degrees; workforce participation still lags the OECD median."
    }
   }
  },
  {
   "name": "England / United Kingdom",
   "crop": "wheat",
   "nonMonotonic": false,
   "highlight": "The mortality tax was measured here, not lifted here, until 1937. Parish registers from 1538 give 470 years of continuous data because no single dragon controlled the record.",
   "scores": {
    "pre1800": {
     "score": 0.5,
     "note": "Wheat, plow, primogeniture; a literate elite minority (Astell, Wollstonecraft) with no institutional channel."
    },
    "p1800s": {
     "score": 1,
     "note": "Married Women’s Property Acts (1870, 1882); Girton (1869) but Cambridge withheld full degrees until 1948."
    },
    "p1900_1930": {
     "score": 1.5,
     "note": "Suffrage 1918 and 1928; Sex Disqualification (Removal) Act 1919; maternal mortality plateau at 400-500 per 100,000."
    },
    "p1940_1960": {
     "score": 2,
     "note": "1937 sulfonamide cliff; 1944 Education Act; NHS. Mortality falls an order of magnitude in one generation."
    },
    "p1980s": {
     "score": 2.5,
     "note": "Women approach parity in university entry by the late 1980s."
    },
    "p2020s": {
     "score": 3,
     "note": "Women the majority of UK undergraduates and of new entrants to law and medicine."
    }
   }
  },
  {
   "name": "France",
   "crop": "wheat",
   "nonMonotonic": true,
   "highlight": "France’s cave overflowed in 1789: too many educated men for too few positions. The Napoleonic Code of 1804 then locked women out for another century and a half.",
   "scores": {
    "pre1800": {
     "score": 1,
     "note": "Salic Law barred inheritance and the throne; salon culture gave elite women voice without credential."
    },
    "p1800s": {
     "score": 0.5,
     "note": "Napoleonic Code (1804): married women cannot own property or contract without permission. A fall from the salon era."
    },
    "p1900_1930": {
     "score": 1,
     "note": "Universities admit women from the 1880s; no vote until 1944."
    },
    "p1940_1960": {
     "score": 2,
     "note": "Suffrage 1944; mortality tax breaks; mass secondary schooling."
    },
    "p1980s": {
     "score": 2.5,
     "note": "Parity in university entry; women a majority of new magistrates by the late 1980s."
    },
    "p2020s": {
     "score": 3,
     "note": "Women the majority of higher-education graduates and of the judiciary."
    }
   }
  },
  {
   "name": "United States",
   "crop": "wheat",
   "nonMonotonic": false,
   "highlight": "The book’s anchor case: 19 percent of bachelor’s degrees in 1900, the 1982 crossover, roughly 60 percent today. Both constraints lifted together: antibiotics after 1937 and legal access to universities.",
   "scores": {
    "pre1800": {
     "score": 0.5,
     "note": "Coverture; no colleges admit women; literacy rising among Protestant households."
    },
    "p1800s": {
     "score": 1,
     "note": "Oberlin (1837) and the Seven Sisters; 19 percent of bachelor’s degrees by 1900."
    },
    "p1900_1930": {
     "score": 1.5,
     "note": "Nineteenth Amendment (1920); maternal mortality around 600 per 100,000 in 1915."
    },
    "p1940_1960": {
     "score": 2,
     "note": "Wartime workforce entry then retreat; GI Bill households seed the 1970s demand for access."
    },
    "p1980s": {
     "score": 2.5,
     "note": "Women surpass men in bachelor’s degrees, 1982 (NCES). The inflection in the biological channel."
    },
    "p2020s": {
     "score": 3,
     "note": "Roughly 60 percent of bachelor’s and 64 percent of master’s degrees (2024). The credentialing class is majority female."
    }
   }
  },
  {
   "name": "Soviet Union / Russia",
   "crop": "wheat",
   "nonMonotonic": true,
   "highlight": "The only system that deliberately lifted the mortality tax and opened the gate at once. The fastest female compounding in any scribal class, inside a dragon with no exit. When the dragon was slain in 1991 the gains scattered.",
   "scores": {
    "pre1800": {
     "score": 0.5,
     "note": "Serfdom; a literate court minority under Catherine II."
    },
    "p1800s": {
     "score": 1,
     "note": "Bestuzhev Courses (1878); women barred from universities proper."
    },
    "p1900_1930": {
     "score": 2,
     "note": "1917: legal equality by decree; maternal mortality driven down from roughly 1,200 per 100,000; mass literacy campaigns."
    },
    "p1940_1960": {
     "score": 2.5,
     "note": "Women the majority of physicians; 58 percent of engineering degrees by 1985 (Lapidus 1978; Soviet statistics)."
    },
    "p1980s": {
     "score": 2.5,
     "note": "Compounding inside a stagnating system (stagnation score 3.0)."
    },
    "p2020s": {
     "score": 2,
     "note": "Post-1991 scattering; high female education, reduced share of the credentialing class in the new state institutions."
    }
   }
  },
  {
   "name": "Nordic countries",
   "crop": "wheat and barley",
   "nonMonotonic": false,
   "highlight": "Finland 1906 was the first European suffrage. Iceland, Finland and Norway top the Global Gender Gap Index and rank among the highest on the Global Innovation Index: the double carrier pool the Epilogue predicts.",
   "scores": {
    "pre1800": {
     "score": 1,
     "note": "Lutheran household literacy examinations from the 1680s taught girls to read; no institutional channel."
    },
    "p1800s": {
     "score": 1,
     "note": "Universities open in the 1870s-1880s; married women’s property reforms."
    },
    "p1900_1930": {
     "score": 2,
     "note": "Finland 1906, Norway 1913, Denmark 1915, Sweden 1921. Early access to the professions."
    },
    "p1940_1960": {
     "score": 2.5,
     "note": "Universal welfare state; maternal mortality among the lowest recorded."
    },
    "p1980s": {
     "score": 3,
     "note": "Parity in higher education and the professions by the 1980s."
    },
    "p2020s": {
     "score": 3,
     "note": "Top of the WEF index; Sweden and Finland at 5 maternal deaths per 100,000 (WHO/UNICEF 2022)."
    }
   }
  }
 ],
 "comingSoon": [
  {
   "name": "Slavery Suppression Score",
   "description": "The stolen river. Scores how much of a civilization’s surplus was pumped out by enslaved labour, and what happened to the carriers who were removed. Seeds already in stability.json (slaveryScore, 0-10)."
  },
  {
   "name": "Diaspora Resilience Score",
   "description": "The seed bank. Scores whether a transmission system survives dispersal: the Jewish literacy mandate after 70 CE, the Greek scholars after 1453, the Huguenots after 1685."
  },
  {
   "name": "Carrier Pool Expansion Score",
   "description": "Who was allowed in, and when. Generalises the women’s score to every gate: caste, class, religion, language, citizenship. The Epilogue’s next instrument."
  }
 ]
}