Abbasid invasion of Anatolia in 838
E882873
The Abbasid invasion of Anatolia in 838 was a major military campaign led by Caliph al-Mu'tasim against the Byzantine Empire, culminating in the sack of Amorium and marking a high point of Abbasid offensive power.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Abbasid invasion of Anatolia in 838 canonical | 1 |
| Arab sack of Amorion in 838 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10759113 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Abbasid invasion of Anatolia in 838 Context triple: [Battle of Anzen, precededBy, Abbasid invasion of Anatolia in 838]
-
A.
Siege of Adrianople (813)
The Siege of Adrianople (813) was a major early 9th-century military engagement in which Bulgarian forces under Khan Krum besieged and captured the Byzantine city of Adrianople during the Byzantine–Bulgarian wars.
-
B.
Second Arab siege of Constantinople (717–718)
The Second Arab siege of Constantinople (717–718) was a major early medieval conflict in which the Byzantine Empire successfully repelled a massive Umayyad assault on its capital, halting Arab expansion into Eastern Europe.
-
C.
First Arab siege of Constantinople (674–678)
The First Arab siege of Constantinople (674–678) was a prolonged Umayyad naval and land campaign against the Byzantine capital that ultimately failed, securing the empire’s survival and halting early Islamic expansion into Eastern Europe.
-
D.
Siege of Constantinople (626)
The Siege of Constantinople in 626 was a major failed joint Avar and Sasanian attempt to capture the Byzantine capital, marking a decisive turning point in the Roman–Persian Wars.
-
E.
Abbasid uprising in Khorasan
The Abbasid uprising in Khorasan was a pivotal 8th-century revolt that mobilized local discontent and military support to overthrow the Umayyad Caliphate and establish Abbasid rule.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Abbasid invasion of Anatolia in 838 Target entity description: The Abbasid invasion of Anatolia in 838 was a major military campaign led by Caliph al-Mu'tasim against the Byzantine Empire, culminating in the sack of Amorium and marking a high point of Abbasid offensive power.
-
A.
Siege of Adrianople (813)
The Siege of Adrianople (813) was a major early 9th-century military engagement in which Bulgarian forces under Khan Krum besieged and captured the Byzantine city of Adrianople during the Byzantine–Bulgarian wars.
-
B.
Second Arab siege of Constantinople (717–718)
The Second Arab siege of Constantinople (717–718) was a major early medieval conflict in which the Byzantine Empire successfully repelled a massive Umayyad assault on its capital, halting Arab expansion into Eastern Europe.
-
C.
First Arab siege of Constantinople (674–678)
The First Arab siege of Constantinople (674–678) was a prolonged Umayyad naval and land campaign against the Byzantine capital that ultimately failed, securing the empire’s survival and halting early Islamic expansion into Eastern Europe.
-
D.
Siege of Constantinople (626)
The Siege of Constantinople in 626 was a major failed joint Avar and Sasanian attempt to capture the Byzantine capital, marking a decisive turning point in the Roman–Persian Wars.
-
E.
Abbasid uprising in Khorasan
The Abbasid uprising in Khorasan was a pivotal 8th-century revolt that mobilized local discontent and military support to overthrow the Umayyad Caliphate and establish Abbasid rule.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Abbasid–Byzantine war
ⓘ
military campaign ⓘ |
| AbbasidArmyStrength | large multi-corps expeditionary force ⓘ |
| aftermath |
capture and enslavement of Amorium's population
ⓘ
execution of the Forty-Two Martyrs of Amorium ⓘ |
| alsoKnownAs |
Amorium campaign
ⓘ
linked to:
Siege of Amorium
Campaign of Amorium ⓘ
linked to:
Siege of Amorium
|
| belligerent |
Abbasid Caliphate
ⓘ
Byzantine Empire ⓘ |
| ByzantineArmyStrength | field army under Theophilos ⓘ |
| ByzantineEmperor | Theophilos ⓘ |
| caliph | al-Mu'tasim ⓘ |
| capitalOfAttacker | Samarra ⓘ |
| commander |
Theophilos
ⓘ
al-Mu'tasim ⓘ |
| conflictBetween |
Abbasid Caliphate
ⓘ
Byzantine Empire ⓘ |
| culminatedIn |
sack of Amorium
ⓘ
linked to:
Siege of Amorium
|
| didNotReach |
Constantinople
ⓘ
linked to:
Constantinople (probable)
|
| endDate | 838 ⓘ |
| followedBy | reduced Abbasid offensive operations against Byzantium ⓘ |
| historicalContext |
Byzantine Iconoclasm
ⓘ
reign of Abbasid caliph al-Mu'tasim ⓘ |
| impactOnByzantium |
propaganda blow to iconoclast regime of Theophilos
ⓘ
weakening of Anatolian defenses ⓘ |
| keyBattle | Battle of Anzen ⓘ |
| keyEvent |
siege of Amorium
ⓘ
linked to:
Siege of Amorium
|
| location |
Anatolia
ⓘ
Asia Minor ⓘ |
| notableFeature |
careful logistical preparation by Abbasids
ⓘ
use of Turkish guard troops in Abbasid army ⓘ |
| opponentCapital |
Constantinople
ⓘ
linked to:
Constantinople (probable)
|
| partOf | Arab–Byzantine wars ⓘ |
| precededBy | Abbasid–Byzantine conflicts of early 9th century ⓘ |
| pretext |
Byzantine raid on Arsamosata
ⓘ
Byzantine raid on Sozopetra ⓘ |
| primaryObjective | punish Byzantium for raids into Abbasid territory ⓘ |
| result | Abbasid victory ⓘ |
| route |
Cilician Gates
ⓘ
passes of the Anti-Taurus ⓘ |
| secondaryObjective | demonstrate Abbasid military supremacy over Byzantium ⓘ |
| significance |
devastation of one of Byzantium's principal military and industrial centers
ⓘ
high point of Abbasid offensive power against Byzantium ⓘ major psychological blow to the Byzantine Empire ⓘ |
| startDate | 838 ⓘ |
| tactic | two-pronged invasion across Anatolia ⓘ |
| target | city of Amorium ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Abbasid invasion of Anatolia in 838 Description of subject: The Abbasid invasion of Anatolia in 838 was a major military campaign led by Caliph al-Mu'tasim against the Byzantine Empire, culminating in the sack of Amorium and marking a high point of Abbasid offensive power.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Abbasid invasion of Anatolia in 838