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Khosrow I invades; Antioch is sacked in the collapsed Eternal Peace

In 540 Khosrow I broke the Eternal Peace, marched through Syria, and sacked Antioch, deporting many inhabitants to a new Persian city. In the causal graph this event weakens Humanitarian Access, a driver that strengthens People Internally Displaced by Conflict and Violence (IDMC) — an improving welfare path.

Sources: [1][2]

Read the full account

In 540 Khosrow I broke the Eternal Peace, marched through Syria, and sacked Antioch, deporting many inhabitants to a new Persian city. Justinian’s armies were committed in Italy and Africa.

Context

Subsidy arrears and western victories are among the motives Procopius gives Khosrow. Sharing the sack with the Sasanian king is mandatory: Justinian did not torch Antioch himself. He did choose a western war that emptied the East. Later 545 truce and 562 peace are other rows.

Confidence is stated on the impact path, not hidden in adjectives. Mixed effects of Khosrow I invades; Antioch is sacked in the collapsed Eternal Peace are separate paths.

Why it matters

Worsening humanitarian path. High confidence on the sack; the causal share with western overstretch is a reasoned path, not a unique coefficient.

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.

  • Justinian I

    Person

    Direct responsibility

    responsibility level 0.36 · verified

    His decision to fight in the West while paying then slighting the East created the opening. Khosrow chose the invasion; Belisarius was later sent back.

What changed

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

Evidence

The sources behind this fact and its verification state.

Verified2 sources on file
  1. 1.Britannica — Antioch, 540 Sasanian sackEncyclopaedia Britannica · High credibility · verified
  2. 2.Procopius, Wars 2 — Khosrow’s invasion and the sack of AntiochLacusCurtius / University of Chicago · High credibility · verified
What the sources establish

Procopius, Wars 2, is the main narrative. Britannica independently records the 540 sack of Antioch. Sasanian royal traditions independently boast of the campaign. No Factrail original deportation census is offered.

Established: Khosrow sacked Antioch in 540 during Justinian’s reign after the 532 peace failed. Not established: a unique deportation total, or that Justinian ordered the sack.

Shared responsibility is part of Khosrow I invades; Antioch is sacked in the collapsed Eternal Peace. Naming Justinian I does not delete co-authors, institutions, or later transmitters. The lag from 0540-03-01 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. ActorJustinian I
  2. contributed toFactKhosrow I invades; Antioch is sacked in the collapsed Eternal Peace
  3. weakensDriverHumanitarian Access
  4. strengthensIndicatorPeople Internally Displaced by Conflict and Violence (IDMC)

Cite this page

Factrail. (2026). Khosrow I invades; Antioch is sacked in the collapsed Eternal Peace. Factrail. https://factrail.ai/facts/er-justinian-sasanian-war-0540

https://factrail.ai/facts/er-justinian-sasanian-war-0540

Accessed 16 October 2026.

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

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