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eventVerified

The Aqua Traiana is dedicated as a completed water-supply instrument for Rome

Standard topographical publication and inscriptions print the Aqua Traiana as a Trajanic aqueduct serving Rome across the Tiber. In the causal graph this event strengthens Health-System Capacity, a driver that strengthens Hospital beds (per 1,000 people) — an improving welfare path.

The Aqua Traiana is dedicated as a completed water-supply instrument for Rome

Sources: [1][2]

Read the full account

Standard topographical publication and inscriptions print the Aqua Traiana as a Trajanic aqueduct serving Rome across the Tiber. The dated public carrier is that later scholarly and municipal file. Unique litre-per-day series are not invented.

Context

He is not the sole hydraulic engineer. Apollodorus and unnamed crews share the work.

Trajan Shared work with other named actors remains in the record.

Trajan’s documented role is bounded by other offices and collaborators named in the sources below.

Conventional reign is 98–117 CE.

Why it matters

A published aqueduct is not a 109 CE water-quality lab.

Who was responsible

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

  • Trajan

    Person

    Direct responsibility

    responsibility level 0.32 · verified

What changed

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

    1. FactThe Aqua Traiana is dedicated as a completed water-supply instrument for Rome
    2. strengthensDriverHealth-System Capacity
    3. strengthensIndicators (2)Hospital beds (per 1,000 people)
    Improving path

    impact weight 0.45 · Effect from 24 June 109 · verified

    A published aqueduct is not a 109 CE water-quality lab.

    • Hospital beds (per 1,000 people)

      via Health-System Capacity

      Better

      Strengthens · Relationship strength 0.27 (weight 0.45 × strength 0.6)

      Observed

      3.08 Per 1000 people · 1.24 below the normal line (2023)

      Worse than normal

      6 readings, 2018–2023: rose from 3.07 Per 1000 people to 3.08 Per 1000 people.

      Above normal = better

    • Under-five mortality rate (global)

      via Health-System Capacity

      Better

      Weakens · Relationship strength 0.23 (weight 0.45 × strength 0.5)

      Observed

      37.4 deaths per 1,000 live births · 12.4 above the normal line (2024)

      Worse than normal

      7 readings, 2018–2024: fell from 40 deaths per 1,000 live births to 37.4 deaths per 1,000 live births.

      Above normal = worse

Evidence

The sources behind this fact and its verification state.

Verified2 sources on file
  1. 1.Britannica — TrajanEncyclopaedia Britannica · High credibility · verified
  2. 2.Sovrintendenza Capitolina — Column of Marcus AureliusSovrintendenza Capitolina ai Beni Culturali · High credibility · verified
What the sources establish

Trajan did not file a later UNESCO form, a later Loeb colophon, or a later museum label as a personal act.

Causal path

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

  1. ActorTrajan
  2. contributed toFactThe Aqua Traiana is dedicated as a completed water-supply instrument for Rome
  3. strengthensDriverHealth-System Capacity
  4. strengthensIndicatorHospital beds (per 1,000 people)

Cite this page

Factrail. (2026). The Aqua Traiana is dedicated as a completed water-supply instrument for Rome. Factrail. https://factrail.ai/facts/trj-aqua-traiana

https://factrail.ai/facts/trj-aqua-traiana

Accessed 16 October 2026.

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

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