1921 Persian coup d'état
E380591
The 1921 Persian coup d'état was a military takeover in Iran that paved the way for Reza Khan’s rise to power and the eventual establishment of the Pahlavi dynasty.
All labels observed (3)
| Label | Occurrences |
|---|---|
| 1921 Persian coup d'état canonical | 4 |
| 1921 Persian coup d’état | 3 |
| 1921 Iranian coup d'état | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3697354 — 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: 1921 Persian coup d'état Context triple: [Pahlavi dynasty, significantEvent, 1921 Persian coup d'état]
-
A.
1953 Iranian coup d'état
The 1953 Iranian coup d'état was a CIA- and MI6-backed overthrow of Prime Minister Mohammad Mossadegh that strengthened Shah Mohammad Reza Pahlavi’s authoritarian rule and reshaped Iran’s political trajectory.
-
B.
Persian Constitutional Revolution
The Persian Constitutional Revolution was an early 20th-century movement in Iran that led to the establishment of a parliament and the limitation of royal authority under the Qajar dynasty.
-
C.
Young Turk Revolution
The Young Turk Revolution was a 1908 movement led by reformist Ottoman officers and intellectuals that restored the empire’s constitution and ushered in a period of constitutional monarchy and political modernization.
-
D.
May Coup of 1926
The May Coup of 1926 was a military takeover led by Józef Piłsudski that overthrew Poland’s democratic government and ushered in the authoritarian Sanation regime in the Second Polish Republic.
-
E.
Egyptian revolution of 1952
The Egyptian revolution of 1952 was a military-led uprising that overthrew King Farouk, ended the monarchy, and paved the way for the establishment of a republic and the rise of leaders like Gamal Abdel Nasser.
- 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: 1921 Persian coup d'état Target entity description: The 1921 Persian coup d'état was a military takeover in Iran that paved the way for Reza Khan’s rise to power and the eventual establishment of the Pahlavi dynasty.
-
A.
1953 Iranian coup d'état
The 1953 Iranian coup d'état was a CIA- and MI6-backed overthrow of Prime Minister Mohammad Mossadegh that strengthened Shah Mohammad Reza Pahlavi’s authoritarian rule and reshaped Iran’s political trajectory.
-
B.
Persian Constitutional Revolution
The Persian Constitutional Revolution was an early 20th-century movement in Iran that led to the establishment of a parliament and the limitation of royal authority under the Qajar dynasty.
-
C.
Young Turk Revolution
The Young Turk Revolution was a 1908 movement led by reformist Ottoman officers and intellectuals that restored the empire’s constitution and ushered in a period of constitutional monarchy and political modernization.
-
D.
May Coup of 1926
The May Coup of 1926 was a military takeover led by Józef Piłsudski that overthrew Poland’s democratic government and ushered in the authoritarian Sanation regime in the Second Polish Republic.
-
E.
Egyptian revolution of 1952
The Egyptian revolution of 1952 was a military-led uprising that overthrew King Farouk, ended the monarchy, and paved the way for the establishment of a republic and the rise of leaders like Gamal Abdel Nasser.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
coup d'état
ⓘ
military coup ⓘ political event ⓘ |
| alsoKnownAs |
1921 Iranian coup d'état
ⓘ
linked to:
1921 Persian coup d'état
1921 coup in Persia ⓘ 21 February 1921 coup ⓘ |
| context |
late Qajar dynasty
ⓘ
post-World War I instability in Iran ⓘ |
| country | Iran ⓘ |
| date | 1921-02-21 ⓘ |
| era |
Qajar Iran
ⓘ
early Pahlavi era transition ⓘ |
| followedBy |
Reza Khan becoming Minister of War
ⓘ
Reza Khan becoming Prime Minister of Iran ⓘ appointment of Reza Khan as commander of the Persian Cossack Brigade ⓘ end of Qajar dynasty ⓘ establishment of the Pahlavi dynasty in 1925 ⓘ gradual consolidation of Reza Khan's power ⓘ |
| governmentOverthrown |
Qajar government
ⓘ
linked to:
Qajar Iran
|
| headOfStateAtTime | Ahmad Shah Qajar ⓘ |
| legalOutcome | formation of a new cabinet under Seyyed Zia'eddin Tabatabaee ⓘ |
| location | Tehran ⓘ |
| mainParticipant |
Ahmad Shah Qajar
ⓘ
Reza Khan ⓘ
linked to:
Reza Shah Pahlavi
Seyyed Zia'eddin Tabatabaee ⓘ |
| militaryForceUsed | Persian Cossack Brigade ⓘ |
| opposedBy |
Qajar loyalists
ⓘ
linked to:
Qajar tribe
|
| organisedBy |
Reza Khan
ⓘ
linked to:
Reza Khan Mirpanj
Seyyed Zia'eddin Tabatabaee ⓘ |
| partOf |
history of modern Iran
ⓘ
interwar period politics in the Middle East ⓘ |
| powerBroker |
British legation in Tehran
ⓘ
linked to:
Bast at the British Legation in Tehran
|
| precededBy | Anglo-Persian Agreement of 1919 ⓘ |
| relatedTo |
Anglo-Persian relations
ⓘ
Pahlavi dynasty ⓘ Qajar dynasty ⓘ
linked to:
Qajar Iran
Reza Shah Pahlavi ⓘ |
| result |
paving the way for the Pahlavi dynasty
ⓘ
rise of Reza Khan ⓘ weakening of the Qajar dynasty ⓘ |
| significance |
key step toward centralization and modernization policies under Reza Shah
ⓘ
marked the beginning of Reza Shah Pahlavi's political career ⓘ shifted power from Qajar monarchy to military leadership ⓘ |
| supportedBy |
British Empire
ⓘ
British military officers in Persia ⓘ |
| typeOfChange | regime change ⓘ |
| year | 1921 ⓘ |
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: 1921 Persian coup d'état Description of subject: The 1921 Persian coup d'état was a military takeover in Iran that paved the way for Reza Khan’s rise to power and the eventual establishment of the Pahlavi dynasty.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: 1921 Persian coup d'état
linked to: 1921 Persian coup d'état
linked to: 1921 Persian coup d'état
linked to: 1921 Persian coup d'état