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Public Euclid Elements, including the right-triangle proposition, enter Perseus and Clay as school text

A Perseus Euclid is not a Samian autograph. 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.

Sources: [1][2]

Read the full account

The name Pythagoras is a later heading; the proof-text is the access gain.

Context

This stores Euclid-as-school.

Pythagoras 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 Perseus Euclid is not a Samian autograph.

Who was responsible

Contribution type and responsibility level for each recorded actor — not sole-author shorthand.

  • Pythagoras

    Person

    Direct responsibility

    responsibility level 0.3 · verified

    Named sage as heading of later school reports. Iamblichus, Euclid’s editors, and later math teachers publish the instrument.

What changed

Fact → Driver → Indicator. Relationship strength orders the paths; it is not the observed indicator movement.

Evidence

The sources behind this fact and its verification state.

Verified2 sources on file
  1. 1.Clay Mathematics Institute — Euclid’s ElementsClay Mathematics Institute · High credibility · verified
  2. 2.Perseus — Euclid, ElementsPerseus Digital Library / Tufts · High credibility · verified
What the sources establish

Perseus and Clay Mathematics Institute public Euclid make Book I’s right-triangle proposition copyable.

Causal path

How this event connects to drivers and indicators in the graph.

  1. ActorPythagoras
  2. contributed toFactPublic Euclid Elements, including the right-triangle proposition, enter Perseus and Clay as school text
  3. strengthensDriverDigital Learning Access
  4. weakensIndicatorLearning Poverty Rate (low- and middle-income countries)

Cite this page

Factrail. (2026). Public Euclid Elements, including the right-triangle proposition, enter Perseus and Clay as school text. Factrail. https://factrail.ai/facts/py-euclid-elements-access

https://factrail.ai/facts/py-euclid-elements-access

Accessed 15 October 2026.

By the Factrail desk · Method: how we source and score · Last reviewed

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