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Hadrian rebuilds the Pantheon as a public domed temple in the Campus Martius

In the 120s Hadrian rebuilt the Pantheon as the concrete rotunda still standing, with Agrippa’s name retained on the pronaos. In the causal graph this event strengthens Social Cohesion, a driver that strengthens Having a say in government — an improving welfare path.

Read the full account

In the 120s Hadrian rebuilt the Pantheon as the concrete rotunda still standing, with Agrippa’s name retained on the pronaos. The dated rebuild is not Villa Adriana and not a later Christian consecration. Hadrian’s documented role is: He rebuilt Agrippa’s temple as the surviving rotunda while keeping Agrippa’s name on the portico. Unnamed labour poured the dome; later popes converted it. Later editors, printers, and excavators remain named where they appear.

Context

A temple to many gods is not unique modern worship. Later tourism is not 126. Named others on the file: Unnamed contractors, brick-makers whose stamps date the work, and Agrippa as retained honorand share the fabric. The public setting is the file around 0126-01-01. The instrument stays Hadrian rebuilds the Pantheon as a public domed temple in the Campus Martius. The setting of Hadrian rebuilds the Pantheon as a public domed temple in the Campus Martius is the public file around 0126-01-01. Driver social-cohesion is attached because the significance names a mechanism from this act, not because a standing list needed coverage.

Confidence is stated on the impact path, not hidden in adjectives. Mixed effects of Hadrian rebuilds the Pantheon as a public domed temple in the Campus Martius are separate paths.

Why it matters

Complex shared building. Welfare reading improving. The attached mechanism is A dated public temple-rebuild put a vast civic interior into Rome’s Campus Martius. Lag to any modern indicator is not treated as zero. This path is attached because the mechanism is named from this act, not because a driver list needed coverage. The welfare reading on this path is improving.

That reading is an impact-path choice, not a property stored on the Fact itself.

Who was responsible

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

  • Hadrian

    Person

    Direct responsibility

    responsibility level 0.48 · verified

    He rebuilt Agrippa’s temple as the surviving rotunda while keeping Agrippa’s name on the portico. Unnamed labour poured the dome; later popes converted it.

What changed

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

    1. FactHadrian rebuilds the Pantheon as a public domed temple in the Campus Martius
    2. strengthensDriverSocial Cohesion
    3. strengthensIndicators (2)Having a say in government
    Improving path

    impact weight 0.4 · Effect from 1 January 126 · verified

    A dated public temple-rebuild put a vast civic interior into Rome’s Campus Martius.

    • Having a say in government

      via Social Cohesion

      Better

      Strengthens · Relationship strength 0.18 (weight 0.4 × strength 0.45)

      Observed

      29.8% of population aged 16-65 years · 8.13 below the normal line (2023)

      Worse than normal

      Two readings: 30.2% of population aged 16-65 years (2021) and 29.8% of population aged 16-65 years (2023).

      20212023

      Above normal = better

    • Rule of Law Gap from the Highest Governance Score

      via Social Cohesion

      Better

      Weakens · Relationship strength 0.18 (weight 0.4 × strength 0.45)

      Observed

      43.9 Score · 43.9 above the normal line (2024)

      Worse than normal

      26 readings, 1996–2024: rose from 43 Score to 43.9 Score.

      Normal is zero · any amount = worse

Evidence

The sources behind this fact and its verification state.

Verified2 sources on file
  1. 1.Britannica — Pantheon, Rome, Hadrianic rebuildEncyclopaedia Britannica · High credibility · verified
  2. 2.Britannica — HadrianEncyclopaedia Britannica · High credibility · verified
What the sources establish

Britannica’s Pantheon article and Hadrian life independently identify a Hadrianic rebuild. Official: Britannica — Pantheon, Rome, Hadrianic rebuild (https://www.britannica.com/topic/Pantheon-building-Rome-Italy (opens in a new tab); Encyclopaedia Britannica). Independent: Britannica — Hadrian, building in Rome (https://www.britannica.com/biography/Hadrian (opens in a new tab); Encyclopaedia Britannica). The two URLs are different pages. Where the carrier is a later edition or a received narrative, that limit is stated rather than upgraded to an autograph. Official carrier: Britannica — Pantheon, Rome, Hadrianic rebuild (https://www.britannica.com/topic/Pantheon-building-Rome-Italy (opens in a new tab); Encyclopaedia Britannica). Independent carrier: Britannica — Hadrian, building in Rome (https://www.britannica.com/biography/Hadrian (opens in a new tab); Encyclopaedia Britannica).

Established: Hadrianic Pantheon rebuild. Not established: that the Agrippa inscription makes Agrippa the 120s builder, or that 609 consecration is this act. Established: a sourced public record of Hadrian rebuilds the Pantheon as a public domed temple in the Campus Martius under 0126-01-01.

Shared responsibility is part of Hadrian rebuilds the Pantheon as a public domed temple in the Campus Martius. Naming Hadrian does not delete co-authors, institutions, or later transmitters. The lag from 0126-01-01 to any measured indicator is not treated as zero. Alternative explanations — weather, other armies, later statutes, or independent cultural change — remain live where the sources do not close them.

If a number is not in the two records named above, it is not supplied here.

Later competitions, monuments, translations, UNESCO listings, museums, and adaptations are not converted into extra lifetime acts.

Causal path

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

  1. ActorHadrian
  2. contributed toFactHadrian rebuilds the Pantheon as a public domed temple in the Campus Martius
  3. strengthensDriverSocial Cohesion
  4. strengthensIndicatorHaving a say in government

Cite this page

Factrail. (2026). Hadrian rebuilds the Pantheon as a public domed temple in the Campus Martius. Factrail. https://factrail.ai/facts/had-pantheon-126

https://factrail.ai/facts/had-pantheon-126

Accessed 16 October 2026.

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

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