LacusCurtius publishes a stable public English Dio Book 59
By the 1990s Bill Thayer’s LacusCurtius at the University of Chicago was serving public-domain Loeb Dio, including Book 59 on Gaius, as a stable teaching URL. A URL is a different instrument from a 1914 cloth Loeb. 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
By the 1990s Bill Thayer’s LacusCurtius at the University of Chicago was serving public-domain Loeb Dio, including Book 59 on Gaius, as a stable teaching URL.
Context
A URL is a different instrument from a 1914 cloth Loeb.
Caligula 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 stable public Dio URL is a digital-learning access path.
A stable public Dio URL is a digital-learning access path.
Who was responsible
Contribution type and responsibility level for each recorded actor — not sole-author shorthand.
Caligula
PersonDirect responsibility
responsibility level 0.16 · verified
Princeps as named in later editions and objects. Historians, museums, and later states publish the instrument.
What changed
Fact → Driver → Indicator. Relationship strength orders the paths; it is not the observed indicator movement.
- FactLacusCurtius publishes a stable public English Dio Book 59
- strengthensDriverDigital Learning Access
- weakensIndicators (3)Learning Poverty Rate (low- and middle-income countries)
impact weight 0.4 · Effect from 1 January 1990 · verified
A stable public Dio URL is a digital-learning access path.
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.Suetonius, Caligula — PerseusPerseus Digital Library / Tufts · High credibility · verified
- 2.Cassius Dio Book 59 — LacusCurtiusLacusCurtius / University of Chicago · High credibility · verified
Causal path
How this event connects to drivers and indicators in the graph.
- ActorCaligula
- contributed toFactLacusCurtius publishes a stable public English Dio Book 59
- strengthensDriverDigital Learning Access
- weakensIndicatorLearning Poverty Rate (low- and middle-income countries)
Cite this page
Factrail. (2026). LacusCurtius publishes a stable public English Dio Book 59. Factrail. https://factrail.ai/facts/cal-lacuscurtius-dio-digital
https://factrail.ai/facts/cal-lacuscurtius-dio-digital
Accessed 16 October 2026.
By the Factrail desk · Method: how we source and score · Last reviewed
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