Encyclopaedia Iranica publishes a citable public general survey that marks uncertainty of century
Iranica’s 2009 Zoroaster general survey is a completed public-scholarship instrument that refuses fake precision on the founder’s century. 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
Iranica’s 2009 Zoroaster general survey is a completed public-scholarship instrument that refuses fake precision on the founder’s century. The dated carrier is iranicaonline.org. Honesty is an access path.
Context
Twin of the gap-as-harm row. This stores the encyclopedia as access.
Zoroaster 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
An Iranica survey is a scholarly access path, not a Sasanian inscription.
Who was responsible
Contribution type and responsibility level for each recorded actor — not sole-author shorthand.
Zoroaster
PersonDirect responsibility
responsibility level 0.21 · verified
Named prophet as heading of later hymns and state religion. Redactors, Sasanian kings, and later Parsi printers publish the instrument.
What changed
Fact → Driver → Indicator. Relationship strength orders the paths; it is not the observed indicator movement.
- FactEncyclopaedia Iranica publishes a citable public general survey that marks uncertainty of century
- strengthensDriverDigital Learning Access
- weakensIndicators (3)Learning Poverty Rate (low- and middle-income countries)
impact weight 0.45 · Effect from 20 July 2009 · verified
An Iranica survey is a scholarly access path, not a Sasanian inscription.
Weakens · Relationship strength 0.18 (weight 0.45 × 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 0.16 (weight 0.45 × 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 0.14 (weight 0.45 × 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.Encyclopaedia Iranica — Zoroaster ii. General surveyEncyclopaedia Iranica · High credibility · verified
- 2.Britannica — ZoroasterEncyclopaedia Britannica · High credibility · verified
What the sources establish
General survey (https://www.iranicaonline.org/articles/zoroaster-ii-general-survey/ (opens in a new tab); Encyclopaedia Iranica).
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. Confidence is stated on the impact path.
Causal path
How this event connects to drivers and indicators in the graph.
- ActorZoroaster
- contributed toFactEncyclopaedia Iranica publishes a citable public general survey that marks uncertainty of century
- strengthensDriverDigital Learning Access
- weakensIndicatorLearning Poverty Rate (low- and middle-income countries)
Cite this page
Factrail. (2026). Encyclopaedia Iranica publishes a citable public general survey that marks uncertainty of century. Factrail. https://factrail.ai/facts/zo-iranica-survey-2009
https://factrail.ai/facts/zo-iranica-survey-2009
Accessed 15 October 2026.
By the Factrail desk · Method: how we source and score · Last reviewed
Dispute this factNamed here, or represent someone who is? Request a right of reply.