Louisiana Separate Car Act
E498280
The Louisiana Separate Car Act was an 1890 state law mandating racially segregated railway accommodations, which became the focus of the landmark Plessy v. Ferguson Supreme Court case upholding “separate but equal” segregation.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Louisiana Separate Car Act canonical | 2 |
| Louisiana Separate Car Act of 1890 | 2 |
| Louisiana Acts of 1890 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5157040 — 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: Louisiana Separate Car Act Context triple: [John H. Ferguson, appliedLaw, Louisiana Separate Car Act]
-
A.
Page Act of 1875
The Page Act of 1875 was a U.S. federal law that effectively curtailed immigration from China—especially of women—by targeting and excluding those stereotyped as prostitutes or forced laborers, laying groundwork for later Chinese exclusion policies.
-
B.
Cox v. Louisiana
Cox v. Louisiana is a landmark 1965 U.S. Supreme Court case that clarified the limits of state power to restrict public demonstrations and protected civil rights protest activities under the First Amendment.
-
C.
Duncan v. Louisiana
Duncan v. Louisiana is a 1968 U.S. Supreme Court decision that held the Sixth Amendment right to a jury trial in criminal cases applies to the states through the Fourteenth Amendment.
-
D.
Buchanan v. Warley
Buchanan v. Warley is a 1917 U.S. Supreme Court decision that struck down a Louisville racial zoning ordinance, marking an early constitutional limit on government-enforced residential segregation.
-
E.
Browder v. Gayle
Browder v. Gayle was the landmark 1956 federal court case that declared bus segregation in Montgomery, Alabama unconstitutional, effectively ending the Montgomery bus boycott and striking a major blow against Jim Crow laws.
- 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: Louisiana Separate Car Act Target entity description: The Louisiana Separate Car Act was an 1890 state law mandating racially segregated railway accommodations, which became the focus of the landmark Plessy v. Ferguson Supreme Court case upholding “separate but equal” segregation.
-
A.
Page Act of 1875
The Page Act of 1875 was a U.S. federal law that effectively curtailed immigration from China—especially of women—by targeting and excluding those stereotyped as prostitutes or forced laborers, laying groundwork for later Chinese exclusion policies.
-
B.
Cox v. Louisiana
Cox v. Louisiana is a landmark 1965 U.S. Supreme Court case that clarified the limits of state power to restrict public demonstrations and protected civil rights protest activities under the First Amendment.
-
C.
Duncan v. Louisiana
Duncan v. Louisiana is a 1968 U.S. Supreme Court decision that held the Sixth Amendment right to a jury trial in criminal cases applies to the states through the Fourteenth Amendment.
-
D.
Buchanan v. Warley
Buchanan v. Warley is a 1917 U.S. Supreme Court decision that struck down a Louisville racial zoning ordinance, marking an early constitutional limit on government-enforced residential segregation.
-
E.
Browder v. Gayle
Browder v. Gayle was the landmark 1956 federal court case that declared bus segregation in Montgomery, Alabama unconstitutional, effectively ending the Montgomery bus boycott and striking a major blow against Jim Crow laws.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
Jim Crow law
ⓘ
state segregation law ⓘ |
| alsoKnownAs | Separate Car Act ⓘ |
| appliesToJurisdiction | Louisiana ⓘ |
| contradictedBy |
Civil Rights Act of 1964
ⓘ
federal constitutional doctrine against state-mandated racial segregation ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| dateEnacted | 1890 ⓘ |
| discriminatoryAgainst |
African Americans
ⓘ
linked to:
Black Americans
|
| documentedIn |
Louisiana Acts of 1890
ⓘ
linked to:
Louisiana Separate Car Act
|
| exempts |
Black nurses attending white children
ⓘ
interstate trains to a limited extent, subject to later litigation ⓘ |
| hasCourtChallenge |
Plessy v. Ferguson
ⓘ
linked to:
Plessy v. Ferguson (1896)
State of Louisiana v. Plessy (state-level proceedings) ⓘ |
| hasEffect |
denial of equal access to railway accommodations for Black passengers
ⓘ
institutionalization of racial segregation in public transportation in Louisiana ⓘ legal reinforcement of white supremacy in Louisiana ⓘ |
| hasLegacy | symbol of legalized segregation in U.S. history ⓘ |
| hasTopic |
civil rights
ⓘ
constitutional law ⓘ transportation law ⓘ |
| historicalPeriod |
Post-Reconstruction era
ⓘ
linked to:
Reconstruction era
|
| influenced | expansion of segregation laws in other Southern states ⓘ |
| inForceUntil | mid-20th century civil rights reforms ⓘ |
| inspiredBy | post-Reconstruction white supremacist politics in the American South ⓘ |
| languageOfWorkOrName | English ⓘ |
| legalPrincipleAffirmedByCourt | separate but equal ⓘ |
| legalSubject |
racial segregation
ⓘ
railway transportation ⓘ |
| legislativeBody | Louisiana State Legislature ⓘ |
| motivatedBy | racial discrimination ⓘ |
| outcomeOfCourtChallenge | upheld as constitutional by the U.S. Supreme Court in Plessy v. Ferguson ⓘ |
| partOf |
Jim Crow segregation regime
ⓘ
linked to:
Jim Crow laws
|
| prohibits | people of different races from occupying the same railway coach in Louisiana, with limited exceptions ⓘ |
| providesFor |
criminal penalties for passengers who refuse to move to assigned segregated cars
ⓘ
criminal penalties for railroad officers who fail to enforce segregation ⓘ |
| regulates |
railroad companies operating within Louisiana
ⓘ
seating arrangements in passenger railway coaches ⓘ |
| requires |
railroad companies to provide equal but separate accommodations for white and Black passengers
ⓘ
separate railway cars for white and Black passengers ⓘ |
| significantEvent | Homer Plessy’s deliberate violation of the law to challenge its constitutionality ⓘ |
| testCase | Homer Plessy’s arrest in 1892 ⓘ |
| weakenedBy |
Brown v. Board of Education decision of 1954
ⓘ
linked to:
Brown v. Board of Education
|
| yearOfEvent | 1892 (Homer Plessy’s arrest under the Act) ⓘ |
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: Louisiana Separate Car Act Description of subject: The Louisiana Separate Car Act was an 1890 state law mandating racially segregated railway accommodations, which became the focus of the landmark Plessy v. Ferguson Supreme Court case upholding “separate but equal” segregation.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Louisiana Separate Car Act
linked to: Louisiana Separate Car Act
linked to: Louisiana Separate Car Act