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

Date: 126

## The fact

In the 120s [Hadrian](/people/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. Do not convert later church consecration into his act. Do not twin this with Villa Adriana. Later editors, printers, and excavators remain named where they appear. 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.

## Context

Fire damage to an earlier Pantheon, imperial brick-stamps, and unnamed contractors share the file. 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. Unnamed clerks, soldiers, printers, or later editors may appear without becoming this instrument. 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. Shared offices, unnamed crews, printers, or later editors may appear without becoming this instrument. Driver [social-cohesion](/drivers/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. Do not convert later church consecration into his act. Do not twin this with Villa Adriana. Mixed effects of Hadrian rebuilds the Pantheon as a public domed temple in the Campus Martius are separate paths.

## Evidence and sources

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; Encyclopaedia Britannica). Independent: Britannica — Hadrian, building in Rome (https://www.britannica.com/biography/Hadrian; 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; Encyclopaedia Britannica). Independent carrier: Britannica — Hadrian, building in Rome (https://www.britannica.com/biography/Hadrian; Encyclopaedia Britannica).

Official or archival record: Britannica — Pantheon, Rome, Hadrianic rebuild (https://www.britannica.com/topic/Pantheon-building-Rome-Italy; Encyclopaedia Britannica).

## Significance

Improving social-cohesion path: a public civic temple interior. 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.

The attached driver is social-cohesion. The welfare reading used in this dossier is improving. That reading is an impact-path choice, not a property stored on the Fact itself.

## What is established and what is not

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. 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.

## People

- Hadrian: https://factrail.ai/people/hadrian

## Drivers

- Social Cohesion: https://factrail.ai/drivers/social-cohesion

## Sources

- https://www.britannica.com/topic/Pantheon-building-Rome-Italy
- https://www.britannica.com/biography/Hadrian

## Methodology

https://factrail.ai/methodology

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