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factbase-ancient-history/battles/battle-of-adrianople.md
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Battle of Adrianople

Battle of Adrianople

Overview

The Battle of Adrianople (378 CE) was a catastrophic Roman defeat in which the Visigoths destroyed a Roman army and killed Emperor Valens. It is often cited as a turning point signaling the decline of Roman military power. @t[=0378]

Key Facts

  • Date: 9 August 378 CE @t[=0378]
  • Location: Adrianople (modern Edirne, Turkey)
  • Belligerents: Eastern Roman Empire vs. Visigoths
  • Commanders: Emperor Valens (Rome, killed), Fritigern (Visigoths)
  • Result: Decisive Visigothic victory 1

The Battle

  • Valens attacked without waiting for Western reinforcements under Gratian
  • Roman cavalry was routed by a surprise Gothic cavalry charge
  • Roman infantry was surrounded and annihilated
  • ~20,000 Roman soldiers killed, including Valens himself

Significance

  • Demonstrated the vulnerability of Roman legions to heavy cavalry
  • Led to the Treaty of 382 CE: Visigoths settled within the empire as foederati @t[=0382]
  • Often considered a harbinger of the fall of the Western Roman Empire 2

Review Queue

  • @q[missing] Line 10: "Date: 9 August 378 CE @t[=0378]" - what is the source?

Well-established historical date from Ammianus Marcellinus, Res Gestae (Book 31), the primary contemporary source for the battle. Also corroborated by later sources including Orosius and Zosimus.

  • @q[temporal] Line 11: "Location: Adrianople (modern Edirne, Turkey)" - when was this true?

CE event (378 CE), tagged @t[=0378] on the date line. Attested by Ammianus Marcellinus, Res Gestae 31.12 (~390 CE) 1 ; modern confirmation in Burns (1994) 2 .

  • @q[temporal] Line 12: "Belligerents: Eastern Roman Empire vs. Visigoths" - when was this true?

CE event (378 CE), no additional temporal tag needed beyond the date line. Attested by Ammianus Marcellinus, Res Gestae 31.12 (~390 CE) 1 .

  • @q[temporal] Line 13: "Commanders: Emperor Valens (Rome, killed), Fritigern (Visigoths)" - when was this true?

CE event (378 CE). Attested by Ammianus Marcellinus, Res Gestae 31.12-13 (~390 CE) 1 .

  • @q[temporal] Line 14: "Result: Decisive Visigothic victory 1 " - when was this true?

CE event (9 August 378 CE). Attested by Ammianus Marcellinus, Res Gestae 31.13 (~390 CE) 1 ; modern analysis in Burns (1994) 2 .

  • @q[temporal] Line 17: "Valens attacked without waiting for Western reinforcements under Gratian" - when was this true?

CE event (9 August 378 CE). Attested by Ammianus Marcellinus, Res Gestae 31.12.4-6 (~390 CE) 1 .

  • @q[temporal] Line 18: "Roman cavalry was routed by a surprise Gothic cavalry charge" - when was this true?

CE event (9 August 378 CE). Attested by Ammianus Marcellinus, Res Gestae 31.13.2 (~390 CE) 1 .

  • @q[temporal] Line 19: "Roman infantry was surrounded and annihilated" - when was this true?

CE event (9 August 378 CE). Attested by Ammianus Marcellinus, Res Gestae 31.13.6-8 (~390 CE) 1 .

  • @q[temporal] Line 20: "~20,000 Roman soldiers killed, including Valens himself" - when was this true?

CE event (9 August 378 CE). Casualty figure is a modern estimate; Ammianus (~390 CE) says two-thirds of the army was lost 1 . Burns (1994) 2 provides the ~20,000 figure.

  • @q[temporal] Line 23: "Demonstrated the vulnerability of Roman legions to heavy cavalry" - when was this true?

Scholarly interpretation, not a dated event. Assessment in Burns (1994) 2 ; also Delbrück, History of the Art of War. Some modern historians debate the cavalry emphasis.

  • @q[temporal] Line 25: "Often considered a harbinger of the fall of the Western Roman Empire 2 " - when was this true?

Scholarly interpretation. Assessment in Burns (1994) 2 ; also supported by Heather, The Fall of the Roman Empire (2006) and Lenski (2002).

  • @q[temporal] Line 7: Malformed temporal tag @t[=378] — see docs for valid syntax

Fix to @t[=0378]. The temporal tag system requires 4-digit years.

  • @q[temporal] Line 10: Malformed temporal tag @t[=378] — see docs for valid syntax

Fix to @t[=0378]. The temporal tag system requires 4-digit years.

  • @q[temporal] Line 24: Malformed temporal tag @t[=382] — see docs for valid syntax

Fix to @t[=0382]. The temporal tag system requires 4-digit years.

  • @q[missing] Line 10: "Date: 9 August 378 CE @t[=378]" - what is the source?

Source: Ammianus Marcellinus, Res Gestae 31.12-13 1 . The primary eyewitness account.

  • @q[missing] Line 11: "Location: Adrianople (modern Edirne, Turkey)" - what is the source?

Source: Ammianus Marcellinus, Res Gestae 31.12 1 . Well-established location.

  • @q[missing] Line 12: "Belligerents: Eastern Roman Empire vs. Visigoths" - what is the source?

Source: Ammianus Marcellinus, Res Gestae 31.12 1 .

  • @q[missing] Line 13: "Commanders: Emperor Valens (Rome, killed), Fritigern (Visigoths)" - what is the source?

Source: Ammianus Marcellinus, Res Gestae 31.12-13 1 .

  • @q[missing] Line 17: "Valens attacked without waiting for Western reinforcements under Gratian" - what is the source?

Source: Ammianus Marcellinus, Res Gestae 31.12.4-6 1 .

  • @q[missing] Line 18: "Roman cavalry was routed by a surprise Gothic cavalry charge" - what is the source?

Source: Ammianus Marcellinus, Res Gestae 31.13.2 1 .

  • @q[missing] Line 19: "Roman infantry was surrounded and annihilated" - what is the source?

Source: Ammianus Marcellinus, Res Gestae 31.13.6-8 1 .

  • @q[missing] Line 20: "~20,000 Roman soldiers killed, including Valens himself" - what is the source?

Source: Ammianus Marcellinus, Res Gestae 31.13.18 1 . Casualty figure is a modern estimate; Ammianus says two-thirds of the army was lost.

  • @q[missing] Line 23: "Demonstrated the vulnerability of Roman legions to heavy cavalry" - what is the source?

Source: Burns (1994) 2 ; also Delbrück, History of the Art of War. This is a longstanding scholarly interpretation, though some modern historians debate the cavalry emphasis.

  • @q[missing] Line 24: "Led to the Treaty of 382 CE: Visigoths settled within the empire as *foederat..." - what is the source?

Source: Burns (1994) 2 ; Heather, P. The Fall of the Roman Empire (2006). The treaty of 382 CE is well-attested in Themistius, Orations.

  • @q[stale] Line 25: "Often considered a harbinger of the fall of the Western Roman Empire 2 " - Burns source from 1994 may be outdated, is this still accurate?

Burns (1994) remains a standard reference. The interpretation of Adrianople as a turning point is longstanding scholarly consensus, also supported by Heather (2006) and Lenski (2002). Still accurate.


  1. Ammianus Marcellinus, Res Gestae 31.1213 ↩︎

  2. Burns, T.S. Barbarians Within the Gates of Rome (1994)--- ↩︎