Montgomery City Lines
E918038
Montgomery City Lines was the private bus company that operated the segregated public transit system in Montgomery, Alabama during the civil rights era, including the bus on which Rosa Parks made her historic protest.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Montgomery City Lines canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11330079 — 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: Montgomery City Lines Context triple: [Rosa Parks Bus, operatedBy, Montgomery City Lines]
-
A.
National City Lines
National City Lines was a U.S. holding company that acquired and operated numerous local transit systems, often associated with the mid-20th-century shift from streetcars to buses.
-
B.
Southern Street Railway Company
The Southern Street Railway Company was a transit operator that managed portions of Chicago’s streetcar network as part of the Chicago Surface Lines system.
-
C.
Union Stock Yard and Transit Company
Union Stock Yard and Transit Company was the corporation that operated Chicago’s vast Union Stock Yards, once the central hub of the American meatpacking industry.
-
D.
Baltimore Transit Company
The Baltimore Transit Company was a private operator that ran streetcar and bus services in Baltimore, Maryland, before public transit was taken over by the state-run Maryland Transit Administration.
-
E.
Monon Railroad
Monon Railroad was a regional railroad company in Indiana, historically significant for its passenger and freight services connecting major cities within the state.
- 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: Montgomery City Lines Target entity description: Montgomery City Lines was the private bus company that operated the segregated public transit system in Montgomery, Alabama during the civil rights era, including the bus on which Rosa Parks made her historic protest.
-
A.
National City Lines
National City Lines was a U.S. holding company that acquired and operated numerous local transit systems, often associated with the mid-20th-century shift from streetcars to buses.
-
B.
Southern Street Railway Company
The Southern Street Railway Company was a transit operator that managed portions of Chicago’s streetcar network as part of the Chicago Surface Lines system.
-
C.
Union Stock Yard and Transit Company
Union Stock Yard and Transit Company was the corporation that operated Chicago’s vast Union Stock Yards, once the central hub of the American meatpacking industry.
-
D.
Baltimore Transit Company
The Baltimore Transit Company was a private operator that ran streetcar and bus services in Baltimore, Maryland, before public transit was taken over by the state-run Maryland Transit Administration.
-
E.
Monon Railroad
Monon Railroad was a regional railroad company in Indiana, historically significant for its passenger and freight services connecting major cities within the state.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
bus company
ⓘ
public transit operator ⓘ |
| associatedWithOrganization | Montgomery Improvement Association NERFINISHED ⓘ |
| associatedWithPerson |
James F. Blake
NERFINISHED
ⓘ
Martin Luther King Jr. NERFINISHED ⓘ Rosa Parks NERFINISHED ⓘ |
| boycottDuration | 381 days ⓘ |
| boycottEndDate | 1956-12-20 ⓘ |
| boycottStartDate | 1955-12-05 ⓘ |
| bus2857LaterPreservedAt | Henry Ford Museum NERFINISHED ⓘ |
| centralTo | Montgomery bus boycott narrative ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| courtRulingEffect | bus segregation declared unconstitutional ⓘ |
| desegregationDate | 1956-12-21 ⓘ |
| economicImpactOfBoycott | severe loss of revenue ⓘ |
| employed | bus drivers ⓘ |
| enforcedSegregationOnBuses | yes ⓘ |
| facedBoycottBy |
African American community of Montgomery
ⓘ
Montgomery Improvement Association NERFINISHED ⓘ |
| hadPolicy |
African Americans required to give up seats to white passengers on demand
ⓘ
African Americans required to sit in rear ⓘ racially segregated seating ⓘ |
| historicalSignificance |
catalyst for major civil rights litigation and protest
ⓘ
symbol of segregated public transportation in the U.S. ⓘ |
| implementedDesegregation | yes ⓘ |
| industry | public transportation ⓘ |
| involvedInEvent |
Montgomery bus boycott
NERFINISHED
ⓘ
Rosa Parks bus protest ⓘ |
| legalContext | Browder v. Gayle NERFINISHED ⓘ |
| locatedIn | Montgomery, Alabama NERFINISHED ⓘ |
| notableBusNumber | Bus 2857 GENERATED ⓘ |
| operated | segregated bus system ⓘ |
| operatedDuringPeriod |
Jim Crow era
NERFINISHED
ⓘ
civil rights era ⓘ |
| operatedInCity | Montgomery NERFINISHED ⓘ |
| operatedInCountry | United States NERFINISHED ⓘ |
| operatedInState | Alabama NERFINISHED ⓘ |
| operatedUnderFranchiseFrom | City of Montgomery NERFINISHED ⓘ |
| operatedVehicleUsedIn | Rosa Parks arrest GENERATED ⓘ |
| ownershipType | private company ⓘ |
| regulatedBy |
City of Montgomery
NERFINISHED
ⓘ
Montgomery City Commission NERFINISHED ⓘ |
| serviceType |
bus transit
ⓘ
public bus service ⓘ |
| subjectToCourtRuling | Browder v. Gayle (1956) NERFINISHED ⓘ |
| transportedPassengerGroup |
African American residents of Montgomery
ⓘ
white residents of Montgomery ⓘ |
| usedRacialSegregationPolicies | yes ⓘ |
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: Montgomery City Lines Description of subject: Montgomery City Lines was the private bus company that operated the segregated public transit system in Montgomery, Alabama during the civil rights era, including the bus on which Rosa Parks made her historic protest.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.