Modern catalogues present Laurentianus 32.9 as the principal medieval Aeschylus book
Twentieth-century Laurenziana catalogues and photographs made the Medicean Aeschylus (Laurentianus 32.9, 10th/11th century) a public scholarly object. Without this book the seven plays’ medieval path is thinner. In the causal graph this event strengthens Digital Learning Access, a driver that weakens Learning Poverty Rate (low- and middle-income countries) — an improving welfare path.
Read the full account
Twentieth-century Laurenziana catalogues and photographs made the Medicean Aeschylus (Laurentianus 32.9, 10th/11th century) a public scholarly object.
Context
Without this book the seven plays’ medieval path is thinner. He did not bind it.
Aeschylus is not the sole author of every later object, law, or museum label that uses the name. Shared work with courts, excavators, printers, spouses, officials, and later states does not erase a documented role, and it does not make an ancient person the signer of a twentieth-century statute.
Why it matters
A Florentine shelfmark is not a didascalia of 458.
Who was responsible
Contribution type and responsibility level for each recorded actor — not sole-author shorthand.
Aeschylus
PersonDirect responsibility
responsibility level 0.28 · verified
Transmitted plays under his name plus later editors, actors, or states. Complex, not an autograph of 458.
What changed
Fact → Driver → Indicator. Relationship strength orders the paths; it is not the observed indicator movement.
- FactModern catalogues present Laurentianus 32.9 as the principal medieval Aeschylus book
- strengthensDriverDigital Learning Access
- weakensIndicators (3)Learning Poverty Rate (low- and middle-income countries)
impact weight 0.4 · Effect from 1 January 1950 · verified
A Florentine shelfmark is not a didascalia of 458.
Weakens · Relationship strength 0.16 (weight 0.4 × strength 0.4)
Observed
70% of 10-year-olds · 70 above the normal line (2022)
Worse than normalTwo readings: 57% of 10-year-olds (2019) and 70% of 10-year-olds (2022).
20192022 Above normal = worse
Strengthens · Relationship strength 0.14 (weight 0.4 × strength 0.35)
Observed
472 PISA score points · 28 below the normal line (2022)
Worse than normal7 readings, 2003–2022: fell from 499 PISA score points to 472 PISA score points.
Above normal = better
Weakens · Relationship strength 0.12 (weight 0.4 × strength 0.3)
Observed
11% of primary-school-age children · 11 above the normal line (2023)
Worse than normalAbove normal = worse
Evidence
The sources behind this fact and its verification state.
- 1.British Library — Greek manuscriptsBritish Library · High credibility · verified
- 2.Biblioteca Medicea Laurenziana — FlorenceBiblioteca Medicea Laurenziana · High credibility · verified
What the sources establish
Modern catalogues present Laurentianus 32.9 as the principal medieval Aeschylus book (1950-01-01). Later competitions, monuments, translations, UNESCO listings, and museums are not converted into extra lifetime acts. That reading is an impact-path choice, not a property stored on the Fact itself. Confidence is stated on the impact path. A later English edition is not a recovered autograph. If a number is not in the two records named above, it is not supplied here.
Causal path
How this event connects to drivers and indicators in the graph.
- ActorAeschylus
- contributed toFactModern catalogues present Laurentianus 32.9 as the principal medieval Aeschylus book
- strengthensDriverDigital Learning Access
- weakensIndicatorLearning Poverty Rate (low- and middle-income countries)
Cite this page
Factrail. (2026). Modern catalogues present Laurentianus 32.9 as the principal medieval Aeschylus book. Factrail. https://factrail.ai/facts/ae-laurenziana-mediceus
https://factrail.ai/facts/ae-laurenziana-mediceus
Accessed 16 October 2026.
By the Factrail desk · Method: how we source and score · Last reviewed
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