Haymarket affair
E1409
The Haymarket affair was an 1886 labor protest and bombing in Chicago that became a pivotal moment in the history of workers’ rights and the labor movement in the United States.
All labels observed (12)
How this entity was disambiguated
This entity first appeared as the object of triple T11795 — 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.
Target entity: Haymarket affair Context triple: [Gilded Age, majorEvent, Haymarket affair]
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A.
Peterloo Massacre
The Peterloo Massacre was an 1819 incident in Manchester where cavalry charged into a large, peaceful pro-democracy rally, killing and injuring many protesters and becoming a pivotal moment in British political reform history.
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B.
Burning of Washington
The Burning of Washington was a British attack during the War of 1812 in which invading forces captured and set fire to multiple U.S. government buildings in the capital, including the presidential mansion.
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C.
Chappaquiddick incident
The Chappaquiddick incident was a 1969 car accident on Chappaquiddick Island involving Senator Edward M. Kennedy that resulted in the death of Mary Jo Kopechne and had lasting political repercussions for Kennedy's career.
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D.
Boston Massacre
The Boston Massacre was a deadly confrontation between British soldiers and American colonists in 1770 that intensified anti-British sentiment and helped spark the American Revolution.
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E.
Great Chicago Fire of 1871
The Great Chicago Fire of 1871 was a catastrophic urban conflagration that destroyed much of Chicago, killed hundreds, left thousands homeless, and spurred major changes in building codes and city planning.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Haymarket affair Target entity description: The Haymarket affair was an 1886 labor protest and bombing in Chicago that became a pivotal moment in the history of workers’ rights and the labor movement in the United States.
-
A.
Peterloo Massacre
The Peterloo Massacre was an 1819 incident in Manchester where cavalry charged into a large, peaceful pro-democracy rally, killing and injuring many protesters and becoming a pivotal moment in British political reform history.
-
B.
Burning of Washington
The Burning of Washington was a British attack during the War of 1812 in which invading forces captured and set fire to multiple U.S. government buildings in the capital, including the presidential mansion.
-
C.
Chappaquiddick incident
The Chappaquiddick incident was a 1969 car accident on Chappaquiddick Island involving Senator Edward M. Kennedy that resulted in the death of Mary Jo Kopechne and had lasting political repercussions for Kennedy's career.
-
D.
Boston Massacre
The Boston Massacre was a deadly confrontation between British soldiers and American colonists in 1770 that intensified anti-British sentiment and helped spark the American Revolution.
-
E.
Great Chicago Fire of 1871
The Great Chicago Fire of 1871 was a catastrophic urban conflagration that destroyed much of Chicago, killed hundreds, left thousands homeless, and spurred major changes in building codes and city planning.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
bombing
ⓘ
historical event ⓘ labor protest ⓘ political demonstration ⓘ riot ⓘ |
| alsoKnownAs |
Haymarket affair
ⓘ
surface form:
Haymarket bombing
Haymarket affair ⓘ
surface form:
Haymarket massacre
Haymarket affair ⓘ
surface form:
Haymarket riot
|
| commemoratedBy | International Workers’ Day ⓘ |
| commemoratedOn | May 1 ⓘ |
| followedBy |
Haymarket affair
self-linksurface differs
ⓘ
surface form:
Haymarket affair trial
|
| hasCasualties |
several civilians killed
ⓘ
several police officers killed ⓘ |
| hasCause |
labor protest for the eight-hour workday
ⓘ
police attempt to disperse a workers’ rally ⓘ |
| hasConsequence |
galvanized international labor movement
ⓘ
increased repression of anarchists and radicals in the U.S. ⓘ strengthened campaign for the eight-hour workday ⓘ |
| hasContext |
late 19th-century U.S. labor movement
ⓘ
struggle for the eight-hour workday ⓘ |
| hasDate | 1886-05-04 ⓘ |
| hasEvent |
bomb thrown at police
ⓘ
peaceful labor rally at Haymarket Square ⓘ police gunfire into the crowd ⓘ |
| hasInjuries | dozens of people injured ⓘ |
| hasLegacy |
pivotal moment in U.S. labor history
ⓘ
symbol of workers’ rights struggle worldwide ⓘ |
| hasLegalProceeding | trial widely criticized as unjust ⓘ |
| hasLocation |
Chicago, Illinois, United States
ⓘ
surface form:
Chicago
Illinois ⓘ United States of America ⓘ
surface form:
United States
|
| hasMemorial | Haymarket Martyrs’ Monument ⓘ |
| hasMemorialLocation | Forest Home Cemetery, Forest Park, Illinois ⓘ |
| hasOutcome |
clemency for remaining defendants in 1893
ⓘ
conviction of eight anarchists ⓘ execution by hanging of four anarchists ⓘ one anarchist’s suicide in prison ⓘ |
| hasParticipant |
Chicago police
ⓘ
Chicago workers ⓘ anarchists ⓘ employers’ representatives ⓘ trade unionists ⓘ |
| hasPoliticalIdeologyContext |
anarchism
ⓘ
socialism ⓘ |
| hasRelatedMovement |
international labor movement
ⓘ
labor movement in the United States ⓘ |
| hasTriggerEvent | McCormick Harvesting Machine Company strike ⓘ |
| hasYear | 1886 ⓘ |
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.
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.
Subject: Haymarket affair Description of subject: The Haymarket affair was an 1886 labor protest and bombing in Chicago that became a pivotal moment in the history of workers’ rights and the labor movement in the United States.
Referenced by (55)
Full triples — surface form annotated when it differs from this entity's canonical label.