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The first Dacian war closes in a dictated peace rather than annexation

In 102 the first Dacian war ended in a dictated peace: Decebalus remained king under Roman conditions. It is a dated settlement, not the 106 annexation and not the later Column narrative of the second war. In the causal graph this event strengthens Energy Security, a driver that strengthens Poverty headcount ratio at $3.00 a day (2021 PPP) (% of population) — a worsening welfare path.

Read the full account

In 102 the first Dacian war ended in a dictated peace: Decebalus remained king under Roman conditions. It is a dated settlement, not the 106 annexation and not the later Column narrative of the second war. Trajan’s documented role is: He dictated terms after two campaign seasons. Decebalus remained king; Roman garrisons and engineers stayed; annexation waited until 106. Later editors, printers, and excavators remain named where they appear. Trajan's documented role is: He dictated terms after two campaign seasons.

Context

Two seasons of fighting, a Danube crossing, and Roman engineering already sat in the file. A peace that leaves a client king is not a unique mercy coefficient. The second war’s causes are a later row. Named others on the file: Decebalus, Roman legates, and unnamed legionaries share the 102 terms. The public setting is the file around 0102-12-01. The instrument stays The first Dacian war closes in a dictated peace rather than annexation. The setting of The first Dacian war closes in a dictated peace rather than annexation is the public file around 0102-12-01.

Shared responsibility is part of The first Dacian war closes in a dictated peace rather than annexation. Naming Trajan does not delete co-authors, institutions, or later transmitters. The lag from 0102-12-01 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.

Why it matters

Medium confidence because later narrative compresses the two wars. Welfare reading improving. The attached mechanism is A 102 peace paused a Danube war as a frontier settlement, distinct from the 106 conquest. 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.

Who was responsible

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

  • Trajan

    Person

    Direct responsibility

    responsibility level 0.4 · verified

    He dictated terms after two campaign seasons. Decebalus remained king; Roman garrisons and engineers stayed; annexation waited until 106.

What changed

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

    1. FactThe first Dacian war closes in a dictated peace rather than annexation
    2. strengthensDriverEnergy Security
    3. strengthensIndicators (4)Poverty headcount ratio at $3.00 a day (2021 PPP) (% of population)
    Mixed path

    impact weight 0.35 · Effect from 1 December 102 · verified

    A 102 peace paused a Danube war as a frontier settlement, distinct from the 106 conquest.

    • Strengthens · Relationship strength 0.22 (weight 0.35 × strength 0.62)

      Observed

      10.4% · 10.2 above the normal line (2024)

      Worse than normal

      7 readings, 2018–2024: fell from 11.1% to 10.4%.

      Above normal = worse

    • Weakens · Relationship strength 0.21 (weight 0.35 × strength 0.6)

      Observed

      7.97% of population aged 16 years or over · 5.2 above the normal line (2025)

      Worse than normal

      8 readings, 2018–2025: rose from 7.77% of population aged 16 years or over to 7.97% of population aged 16 years or over.

      Above normal = worse

    • Strengthens · Relationship strength 0.17 (weight 0.35 × strength 0.5)

      Observed

      91.6% of population · 8.4 below the normal line (2023)

      Worse than normal

      4 readings, 2020–2023: rose from 90.4% of population to 91.6% of population.

      Above normal = better

    All indicators on this path (4)
    • Weakens · Relationship strength 0.17 (weight 0.35 × strength 0.48)

      Observed

      80 Years · 2.3 below the normal line (2023)

      Worse than normal

      6 readings, 2018–2023: rose from 79.5 Years to 80 Years.

      Above normal = better

Evidence

The sources behind this fact and its verification state.

Verified2 sources on file
  1. 1.Livius — Trajan, adoption and accessionLivius.org · High credibility · verified
  2. 2.Britannica — TrajanEncyclopaedia Britannica · High credibility · verified
What the sources establish

Britannica and Livius independently separate the 102 peace from the 106 conquest. Official: Britannica — Trajan, First Dacian War (https://www.britannica.com/biography/Trajan (opens in a new tab); Encyclopaedia Britannica). Independent: Livius — Trajan’s Dacian wars, 101–102 peace (https://www.livius.org/articles/person/trajan/ (opens in a new tab); Livius.org). 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 — Trajan, First Dacian War (https://www.britannica.com/biography/Trajan (opens in a new tab); Encyclopaedia Britannica). Independent carrier: Livius — Trajan’s Dacian wars, 101–102 peace (https://www.livius.org/articles/person/trajan/ (opens in a new tab); Livius.org).

Established: a 102 close of the first Dacian war short of annexation. Not established: that 106 was already decided in 102. Established: a sourced public record of The first Dacian war closes in a dictated peace rather than annexation under 0102-12-01.

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

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

Confidence is stated on the impact path, not hidden in adjectives. Mixed effects of The first Dacian war closes in a dictated peace rather than annexation are separate paths.

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

Causal path

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

  1. ActorTrajan
  2. contributed toFactThe first Dacian war closes in a dictated peace rather than annexation
  3. strengthensDriverEnergy Security
  4. strengthensIndicatorPoverty headcount ratio at $3.00 a day (2021 PPP) (% of population)

Cite this page

Factrail. (2026). The first Dacian war closes in a dictated peace rather than annexation. Factrail. https://factrail.ai/facts/trj-first-dacian-peace-102

https://factrail.ai/facts/trj-first-dacian-peace-102

Accessed 16 October 2026.

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

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