# Epidemic disease years in the 70s strike Rome under the Flavian restoration

Date: 77

## The fact

Ancient narratives place serious epidemic disease in Rome during the Flavian 70s under [Vespasian](/people/vespasian)’s reign. The instrument is that pestilence cluster, not a claim he authored the pathogen.

It is one event.

## Context

Restoration and plague can coexist. Suetonius and Britannica independently note pestilence among reign troubles. Do not invent a modern strain label.

Vespasian’s documented role is bounded by other offices and collaborators named in the sources below. Sharing a field with them is not a reason to drop a documented act, and it is not a reason to assign later consequences done in the name after death.

Conventional years are 9–79 CE. Surviving public files are Suetonius, Tacitus, Josephus, coins, and encyclopedias. Vespasian did not typeset LacusCurtius. Later museums are evidence, not acts. Suetonian jokes are not automatic Facts.

Named person as heading of the dated public instrument. Later editors, museums, printers, or offices share publication. Complex where later carriers are the surviving public file.

## Evidence and sources

Suetonius and Britannica independently note epidemic disease among the troubles of Vespasian’s reign years.

Official or archival record: LacusCurtius — Suetonius, Life of Vespasian (https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Suetonius/12Caesars/Vespasian*.html; University of Chicago / LacusCurtius).

## Significance

Infectious-disease path. Medium confidence on exact year; high on received pestilence reports.

## What is established and what is not

Established: pestilence is reported in the reign. Not established: a WHO case definition retrospectively applied.

What would change the picture: a contradictory original with a different date or name, or a measured series that can be argued, with lag and alternatives, as a consequence of this instrument rather than of later institutions.

The date is the date of this instrument, not a licence to back-date every later harm or benefit.

Established here: a sourced, dated public instrument with a named contribution by Vespasian.

They are not a public rating.

The driver `infectious-disease-transmission` is attached because the mechanism named in Significance follows from this instrument, not because a standing list of welfare headings needed another tick. Vespasian did not file a later UNESCO form, a later Loeb colophon, or a later museum label as a personal act. A portrait or conventional bust is not this mechanism. Allegation, reconstruction, and established occurrence stay distinct. Plague is not the Colosseum. Keep infection off the amphitheatre row. Keep the carrier date of later English distinct from the received historical year stored in the date field. Do not read a later English edition as a recovered autograph of Vespasian.

## People

- Vespasian: https://factrail.ai/people/vespasian

## Drivers

- Infectious-Disease Transmission: https://factrail.ai/drivers/infectious-disease-transmission

## Sources

- https://www.britannica.com/biography/Vespasian
- https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Suetonius/12Caesars/Vespasian*.html

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/ves-health-plague-rome